next-0519 on thinkpad x60: sound related? window manager crash
Hi!
My window manager stopped responding. I was able to recover machine using sysrq-k.
I started writing nice report, when session failed second time. And then third time on next attempt.
Any ideas?
I'll send this out before this locks up...
Best regards, Pavel
[ 2801.147411] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.187449] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.192260] usb 1-2: new high-speed USB device number 5 using ehci-pci [ 2801.240241] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.300663] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.352181] usb 1-2: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 5.07 [ 2801.352192] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2801.352200] usb 1-2: Product: Ethernet Gadget [ 2801.352207] usb 1-2: Manufacturer: Linux 5.7.0-rc4-00046-g6d7c0f75a522 with musb-hdrc [ 2801.419872] e1000e 0000:02:00.0 eth1: NIC Link is Down [ 2801.428760] cdc_ether 1-2:1.0 usb0: register 'cdc_ether' at usb-0000:00:1d.7-2, CDC Ethernet Device, 72:ed:12:23:c9:c2 [ 2804.020289] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 2804.020451] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 2804.022385] wlan0: authenticated [ 2804.024243] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 2804.026985] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 2804.028961] wlan0: associated [ 2874.520955] perf: interrupt took too long (2507 > 2500), lowering kernel.perf_event_max_sample_rate to 79750 [ 3730.016148] perf: interrupt took too long (3135 > 3133), lowering kernel.perf_event_max_sample_rate to 63750 [ 4274.984810] BUG: unable to handle page fault for address: f8600000 [ 4274.984821] #PF: supervisor write access in kernel mode [ 4274.984827] #PF: error_code(0x0002) - not-present page [ 4274.984833] *pdpt = 000000002c0b2001 *pde = 0000000000000000 [ 4274.984843] Oops: 0002 [#1] PREEMPT SMP PTI [ 4274.984853] CPU: 1 PID: 3351 Comm: marco Not tainted 5.7.0-rc6-next-20200519+ #115 [ 4274.984859] Hardware name: LENOVO 17097HU/17097HU, BIOS 7BETD8WW (2.19 ) 03/31/2011 [ 4274.984871] EIP: memset+0xb/0x20 [ 4274.984878] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.984885] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.984892] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.984898] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.984905] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4274.984910] Call Trace: [ 4274.984923] snd_pcm_hw_params+0x38d/0x400 [ 4274.984930] snd_pcm_ioctl+0x187/0xe80 [ 4274.984940] ? __fget_files+0x86/0xc0 [ 4274.984947] ? __fget_light+0x6b/0x80 [ 4274.984954] ? snd_pcm_status_user64+0x90/0x90 [ 4274.984962] ksys_ioctl+0x1cd/0x880 [ 4274.984971] ? ksys_mmap_pgoff+0x81/0xc0 [ 4274.984978] ? fput+0xd/0x10 [ 4274.984984] ? ksys_mmap_pgoff+0x8d/0xc0 [ 4274.984991] __ia32_sys_ioctl+0x10/0x12 [ 4274.985000] do_int80_syscall_32+0x3c/0x100 [ 4274.985010] entry_INT80_32+0x116/0x116 [ 4274.985016] EIP: 0xb7f17092 [ 4274.985023] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 e8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 <c3> 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00 [ 4274.985030] EAX: ffffffda EBX: 00000011 ECX: c25c4111 EDX: bf8d5280 [ 4274.985036] ESI: 08250880 EDI: bf8d5280 EBP: 082a4150 ESP: bf8d50a4 [ 4274.985042] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292 [ 4274.985051] ? nmi+0xcc/0x2bc [ 4274.985055] Modules linked in: [ 4274.985063] CR2: 00000000f8600000 [ 4274.985072] ---[ end trace 61b0852711d6de1d ]--- [ 4274.985079] EIP: memset+0xb/0x20 [ 4274.985086] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.985092] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.985099] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.985105] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.985112] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4337.396551] sysrq: SAK [ 4337.397010] tty tty7: SAK: killed process 2963 (Xorg): by session [ 4337.397282] tty tty7: SAK: killed process 2963 (Xorg): by controlling tty [ 4337.397621] tty tty7: SAK: killed process 3484 (console-kit-dae): by fd#9 [ 4337.397934] tty tty7: SAK: killed process 3485 (console-kit-dae): by fd#9 [ 4337.397940] tty tty7: SAK: killed process 3486 (console-kit-dae): by fd#9 [ 4337.397945] tty tty7: SAK: killed process 3487 (console-kit-dae): by fd#9 [ 4337.397951] tty tty7: SAK: killed process 3488 (console-kit-dae): by fd#9 [ 4337.397956] tty tty7: SAK: killed process 3489 (console-kit-dae): by fd#9 [ 4337.397961] tty tty7: SAK: killed process 3490 (console-kit-dae): by fd#9 [ 4337.397967] tty tty7: SAK: killed process 3491 (console-kit-dae): by fd#9 [ 4337.397972] tty tty7: SAK: killed process 3492 (console-kit-dae): by fd#9 [ 4337.397978] tty tty7: SAK: killed process 3493 (console-kit-dae): by fd#9 [ 4337.397983] tty tty7: SAK: killed process 3494 (console-kit-dae): by fd#9 [ 4337.397989] tty tty7: SAK: killed process 3495 (console-kit-dae): by fd#9 [ 4337.397994] tty tty7: SAK: killed process 3496 (console-kit-dae): by fd#9 [ 4337.397999] tty tty7: SAK: killed process 3497 (console-kit-dae): by fd#9 [ 4337.398005] tty tty7: SAK: killed process 3498 (console-kit-dae): by fd#9 [ 4337.398010] tty tty7: SAK: killed process 3499 (console-kit-dae): by fd#9 [ 4337.398015] tty tty7: SAK: killed process 3500 (console-kit-dae): by fd#9 [ 4337.398021] tty tty7: SAK: killed process 3501 (console-kit-dae): by fd#9 [ 4337.398026] tty tty7: SAK: killed process 3502 (console-kit-dae): by fd#9 [ 4337.398032] tty tty7: SAK: killed process 3503 (console-kit-dae): by fd#9 [ 4337.398037] tty tty7: SAK: killed process 3504 (console-kit-dae): by fd#9 [ 4337.398042] tty tty7: SAK: killed process 3505 (console-kit-dae): by fd#9 [ 4337.398048] tty tty7: SAK: killed process 3506 (console-kit-dae): by fd#9 [ 4337.398053] tty tty7: SAK: killed process 3507 (console-kit-dae): by fd#9 [ 4337.398059] tty tty7: SAK: killed process 3508 (console-kit-dae): by fd#9 [ 4337.398064] tty tty7: SAK: killed process 3509 (console-kit-dae): by fd#9 [ 4337.398070] tty tty7: SAK: killed process 3510 (console-kit-dae): by fd#9 [ 4337.398075] tty tty7: SAK: killed process 3511 (console-kit-dae): by fd#9 [ 4337.398080] tty tty7: SAK: killed process 3512 (console-kit-dae): by fd#9 [ 4337.398086] tty tty7: SAK: killed process 3513 (console-kit-dae): by fd#9 [ 4337.398091] tty tty7: SAK: killed process 3514 (console-kit-dae): by fd#9 [ 4337.398097] tty tty7: SAK: killed process 3515 (console-kit-dae): by fd#9 [ 4337.398102] tty tty7: SAK: killed process 3516 (console-kit-dae): by fd#9 [ 4337.398107] tty tty7: SAK: killed process 3517 (console-kit-dae): by fd#9 [ 4337.398113] tty tty7: SAK: killed process 3518 (console-kit-dae): by fd#9 [ 4337.398118] tty tty7: SAK: killed process 3519 (console-kit-dae): by fd#9 [ 4337.398124] tty tty7: SAK: killed process 3520 (console-kit-dae): by fd#9 [ 4337.398129] tty tty7: SAK: killed process 3521 (console-kit-dae): by fd#9 [ 4337.398135] tty tty7: SAK: killed process 3522 (console-kit-dae): by fd#9 [ 4337.398141] tty tty7: SAK: killed process 3523 (console-kit-dae): by fd#9 [ 4337.398146] tty tty7: SAK: killed process 3524 (console-kit-dae): by fd#9 [ 4337.398151] tty tty7: SAK: killed process 3525 (console-kit-dae): by fd#9 [ 4337.398157] tty tty7: SAK: killed process 3526 (console-kit-dae): by fd#9 [ 4337.398162] tty tty7: SAK: killed process 3527 (console-kit-dae): by fd#9 [ 4337.398168] tty tty7: SAK: killed process 3528 (console-kit-dae): by fd#9 [ 4337.398173] tty tty7: SAK: killed process 3529 (console-kit-dae): by fd#9 [ 4337.398178] tty tty7: SAK: killed process 3530 (console-kit-dae): by fd#9 [ 4337.398184] tty tty7: SAK: killed process 3531 (console-kit-dae): by fd#9 [ 4337.398189] tty tty7: SAK: killed process 3532 (console-kit-dae): by fd#9 [ 4337.398194] tty tty7: SAK: killed process 3533 (console-kit-dae): by fd#9 [ 4337.398200] tty tty7: SAK: killed process 3534 (console-kit-dae): by fd#9 [ 4337.398205] tty tty7: SAK: killed process 3535 (console-kit-dae): by fd#9 [ 4337.398210] tty tty7: SAK: killed process 3536 (console-kit-dae): by fd#9 [ 4337.398216] tty tty7: SAK: killed process 3537 (console-kit-dae): by fd#9 [ 4337.398221] tty tty7: SAK: killed process 3538 (console-kit-dae): by fd#9 [ 4337.398227] tty tty7: SAK: killed process 3539 (console-kit-dae): by fd#9 [ 4337.398232] tty tty7: SAK: killed process 3540 (console-kit-dae): by fd#9 [ 4337.398237] tty tty7: SAK: killed process 3541 (console-kit-dae): by fd#9 [ 4337.398243] tty tty7: SAK: killed process 3542 (console-kit-dae): by fd#9 [ 4337.398248] tty tty7: SAK: killed process 3543 (console-kit-dae): by fd#9 [ 4337.398253] tty tty7: SAK: killed process 3544 (console-kit-dae): by fd#9 [ 4337.398260] tty tty7: SAK: killed process 3545 (console-kit-dae): by fd#9 [ 4337.398265] tty tty7: SAK: killed process 3546 (console-kit-dae): by fd#9 [ 4337.398270] tty tty7: SAK: killed process 3548 (gmain): by fd#9 [ 4337.398276] tty tty7: SAK: killed process 3549 (gdbus): by fd#9 [ 4337.743402] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4349.750345] traps: clock-applet[7160] trap int3 ip:b71bafc0 sp:bffdd3b0 error:0 in libglib-2.0.so.0.5000.3[b716e000+12a000] [ 4349.751834] traps: mateweather-app[7164] trap int3 ip:b729ffc0 sp:bfc45bf0 error:0 in libglib-2.0.so.0.5000.3[b7253000+12a000] [ 4352.181317] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4352.183330] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.187927] wlan0: authenticated [ 4352.192203] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.194932] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4352.199395] wlan0: associated [ 4688.523006] sysrq: SAK [ 4688.523318] tty tty7: SAK: killed process 6791 (Xorg): by session [ 4688.523683] tty tty7: SAK: killed process 6791 (Xorg): by controlling tty [ 4688.523930] tty tty7: SAK: killed process 7017 (console-kit-dae): by fd#9 [ 4688.524330] tty tty7: SAK: killed process 7018 (console-kit-dae): by fd#9 [ 4688.524337] tty tty7: SAK: killed process 7019 (console-kit-dae): by fd#9 [ 4688.524342] tty tty7: SAK: killed process 7020 (console-kit-dae): by fd#9 [ 4688.524347] tty tty7: SAK: killed process 7021 (console-kit-dae): by fd#9 [ 4688.524353] tty tty7: SAK: killed process 7022 (console-kit-dae): by fd#9 [ 4688.524358] tty tty7: SAK: killed process 7023 (console-kit-dae): by fd#9 [ 4688.524363] tty tty7: SAK: killed process 7024 (console-kit-dae): by fd#9 [ 4688.524369] tty tty7: SAK: killed process 7025 (console-kit-dae): by fd#9 [ 4688.524374] tty tty7: SAK: killed process 7026 (console-kit-dae): by fd#9 [ 4688.524380] tty tty7: SAK: killed process 7027 (console-kit-dae): by fd#9 [ 4688.524385] tty tty7: SAK: killed process 7028 (console-kit-dae): by fd#9 [ 4688.524391] tty tty7: SAK: killed process 7029 (console-kit-dae): by fd#9 [ 4688.524396] tty tty7: SAK: killed process 7030 (console-kit-dae): by fd#9 [ 4688.524402] tty tty7: SAK: killed process 7031 (console-kit-dae): by fd#9 [ 4688.524407] tty tty7: SAK: killed process 7032 (console-kit-dae): by fd#9 [ 4688.524412] tty tty7: SAK: killed process 7033 (console-kit-dae): by fd#9 [ 4688.524419] tty tty7: SAK: killed process 7034 (console-kit-dae): by fd#9 [ 4688.524424] tty tty7: SAK: killed process 7035 (console-kit-dae): by fd#9 [ 4688.524429] tty tty7: SAK: killed process 7036 (console-kit-dae): by fd#9 [ 4688.524435] tty tty7: SAK: killed process 7037 (console-kit-dae): by fd#9 [ 4688.524440] tty tty7: SAK: killed process 7038 (console-kit-dae): by fd#9 [ 4688.524446] tty tty7: SAK: killed process 7039 (console-kit-dae): by fd#9 [ 4688.524451] tty tty7: SAK: killed process 7040 (console-kit-dae): by fd#9 [ 4688.524456] tty tty7: SAK: killed process 7041 (console-kit-dae): by fd#9 [ 4688.524462] tty tty7: SAK: killed process 7042 (console-kit-dae): by fd#9 [ 4688.524467] tty tty7: SAK: killed process 7043 (console-kit-dae): by fd#9 [ 4688.524473] tty tty7: SAK: killed process 7044 (console-kit-dae): by fd#9 [ 4688.524478] tty tty7: SAK: killed process 7045 (console-kit-dae): by fd#9 [ 4688.524483] tty tty7: SAK: killed process 7046 (console-kit-dae): by fd#9 [ 4688.524489] tty tty7: SAK: killed process 7047 (console-kit-dae): by fd#9 [ 4688.524494] tty tty7: SAK: killed process 7048 (console-kit-dae): by fd#9 [ 4688.524500] tty tty7: SAK: killed process 7049 (console-kit-dae): by fd#9 [ 4688.524505] tty tty7: SAK: killed process 7050 (console-kit-dae): by fd#9 [ 4688.524511] tty tty7: SAK: killed process 7051 (console-kit-dae): by fd#9 [ 4688.524516] tty tty7: SAK: killed process 7052 (console-kit-dae): by fd#9 [ 4688.524521] tty tty7: SAK: killed process 7053 (console-kit-dae): by fd#9 [ 4688.524527] tty tty7: SAK: killed process 7054 (console-kit-dae): by fd#9 [ 4688.524532] tty tty7: SAK: killed process 7055 (console-kit-dae): by fd#9 [ 4688.524538] tty tty7: SAK: killed process 7056 (console-kit-dae): by fd#9 [ 4688.524543] tty tty7: SAK: killed process 7057 (console-kit-dae): by fd#9 [ 4688.524549] tty tty7: SAK: killed process 7058 (console-kit-dae): by fd#9 [ 4688.524554] tty tty7: SAK: killed process 7059 (console-kit-dae): by fd#9 [ 4688.524560] tty tty7: SAK: killed process 7060 (console-kit-dae): by fd#9 [ 4688.524565] tty tty7: SAK: killed process 7061 (console-kit-dae): by fd#9 [ 4688.524570] tty tty7: SAK: killed process 7062 (console-kit-dae): by fd#9 [ 4688.524576] tty tty7: SAK: killed process 7063 (console-kit-dae): by fd#9 [ 4688.524581] tty tty7: SAK: killed process 7064 (console-kit-dae): by fd#9 [ 4688.524587] tty tty7: SAK: killed process 7065 (console-kit-dae): by fd#9 [ 4688.524593] tty tty7: SAK: killed process 7066 (console-kit-dae): by fd#9 [ 4688.524598] tty tty7: SAK: killed process 7067 (console-kit-dae): by fd#9 [ 4688.524603] tty tty7: SAK: killed process 7068 (console-kit-dae): by fd#9 [ 4688.524609] tty tty7: SAK: killed process 7069 (console-kit-dae): by fd#9 [ 4688.524614] tty tty7: SAK: killed process 7070 (console-kit-dae): by fd#9 [ 4688.524620] tty tty7: SAK: killed process 7071 (console-kit-dae): by fd#9 [ 4688.524625] tty tty7: SAK: killed process 7072 (console-kit-dae): by fd#9 [ 4688.524631] tty tty7: SAK: killed process 7073 (console-kit-dae): by fd#9 [ 4688.524636] tty tty7: SAK: killed process 7074 (console-kit-dae): by fd#9 [ 4688.524642] tty tty7: SAK: killed process 7075 (console-kit-dae): by fd#9 [ 4688.524648] tty tty7: SAK: killed process 7076 (console-kit-dae): by fd#9 [ 4688.524653] tty tty7: SAK: killed process 7077 (console-kit-dae): by fd#9 [ 4688.524659] tty tty7: SAK: killed process 7078 (console-kit-dae): by fd#9 [ 4688.524664] tty tty7: SAK: killed process 7079 (console-kit-dae): by fd#9 [ 4688.524670] tty tty7: SAK: killed process 7083 (gmain): by fd#9 [ 4688.524675] tty tty7: SAK: killed process 7085 (gdbus): by fd#9 [ 4688.780517] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4698.601308] traps: clock-applet[7813] trap int3 ip:b71e9fc0 sp:bf901050 error:0 in libglib-2.0.so.0.5000.3[b719d000+12a000] [ 4698.676549] traps: mateweather-app[7814] trap int3 ip:b7260fc0 sp:bfcfb9d0 error:0 in libglib-2.0.so.0.5000.3[b7214000+12a000] [ 4700.456620] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4700.456710] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.459606] wlan0: authenticated [ 4700.460449] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.463153] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4700.465007] wlan0: associated
On Wed, 20 May 2020 13:11:37 +0200, Pavel Machek wrote:
Hi!
My window manager stopped responding. I was able to recover machine using sysrq-k.
I started writing nice report, when session failed second time. And then third time on next attempt.
Any ideas?
Do you know when the regression started? There have been significant code changes regarding the sound buffer management, and it's merged in 5.6-rc1. Other than that, I have no idea yet.
Takashi
I'll send this out before this locks up...
Best regards, Pavel
[ 2801.147411] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.187449] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.192260] usb 1-2: new high-speed USB device number 5 using ehci-pci [ 2801.240241] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.300663] sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully claim to support it. [ 2801.352181] usb 1-2: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 5.07 [ 2801.352192] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2801.352200] usb 1-2: Product: Ethernet Gadget [ 2801.352207] usb 1-2: Manufacturer: Linux 5.7.0-rc4-00046-g6d7c0f75a522 with musb-hdrc [ 2801.419872] e1000e 0000:02:00.0 eth1: NIC Link is Down [ 2801.428760] cdc_ether 1-2:1.0 usb0: register 'cdc_ether' at usb-0000:00:1d.7-2, CDC Ethernet Device, 72:ed:12:23:c9:c2 [ 2804.020289] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 2804.020451] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 2804.022385] wlan0: authenticated [ 2804.024243] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 2804.026985] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 2804.028961] wlan0: associated [ 2874.520955] perf: interrupt took too long (2507 > 2500), lowering kernel.perf_event_max_sample_rate to 79750 [ 3730.016148] perf: interrupt took too long (3135 > 3133), lowering kernel.perf_event_max_sample_rate to 63750 [ 4274.984810] BUG: unable to handle page fault for address: f8600000 [ 4274.984821] #PF: supervisor write access in kernel mode [ 4274.984827] #PF: error_code(0x0002) - not-present page [ 4274.984833] *pdpt = 000000002c0b2001 *pde = 0000000000000000 [ 4274.984843] Oops: 0002 [#1] PREEMPT SMP PTI [ 4274.984853] CPU: 1 PID: 3351 Comm: marco Not tainted 5.7.0-rc6-next-20200519+ #115 [ 4274.984859] Hardware name: LENOVO 17097HU/17097HU, BIOS 7BETD8WW (2.19 ) 03/31/2011 [ 4274.984871] EIP: memset+0xb/0x20 [ 4274.984878] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.984885] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.984892] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.984898] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.984905] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4274.984910] Call Trace: [ 4274.984923] snd_pcm_hw_params+0x38d/0x400 [ 4274.984930] snd_pcm_ioctl+0x187/0xe80 [ 4274.984940] ? __fget_files+0x86/0xc0 [ 4274.984947] ? __fget_light+0x6b/0x80 [ 4274.984954] ? snd_pcm_status_user64+0x90/0x90 [ 4274.984962] ksys_ioctl+0x1cd/0x880 [ 4274.984971] ? ksys_mmap_pgoff+0x81/0xc0 [ 4274.984978] ? fput+0xd/0x10 [ 4274.984984] ? ksys_mmap_pgoff+0x8d/0xc0 [ 4274.984991] __ia32_sys_ioctl+0x10/0x12 [ 4274.985000] do_int80_syscall_32+0x3c/0x100 [ 4274.985010] entry_INT80_32+0x116/0x116 [ 4274.985016] EIP: 0xb7f17092 [ 4274.985023] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 e8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 <c3> 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00 [ 4274.985030] EAX: ffffffda EBX: 00000011 ECX: c25c4111 EDX: bf8d5280 [ 4274.985036] ESI: 08250880 EDI: bf8d5280 EBP: 082a4150 ESP: bf8d50a4 [ 4274.985042] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292 [ 4274.985051] ? nmi+0xcc/0x2bc [ 4274.985055] Modules linked in: [ 4274.985063] CR2: 00000000f8600000 [ 4274.985072] ---[ end trace 61b0852711d6de1d ]--- [ 4274.985079] EIP: memset+0xb/0x20 [ 4274.985086] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.985092] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.985099] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.985105] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.985112] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4337.396551] sysrq: SAK [ 4337.397010] tty tty7: SAK: killed process 2963 (Xorg): by session [ 4337.397282] tty tty7: SAK: killed process 2963 (Xorg): by controlling tty [ 4337.397621] tty tty7: SAK: killed process 3484 (console-kit-dae): by fd#9 [ 4337.397934] tty tty7: SAK: killed process 3485 (console-kit-dae): by fd#9 [ 4337.397940] tty tty7: SAK: killed process 3486 (console-kit-dae): by fd#9 [ 4337.397945] tty tty7: SAK: killed process 3487 (console-kit-dae): by fd#9 [ 4337.397951] tty tty7: SAK: killed process 3488 (console-kit-dae): by fd#9 [ 4337.397956] tty tty7: SAK: killed process 3489 (console-kit-dae): by fd#9 [ 4337.397961] tty tty7: SAK: killed process 3490 (console-kit-dae): by fd#9 [ 4337.397967] tty tty7: SAK: killed process 3491 (console-kit-dae): by fd#9 [ 4337.397972] tty tty7: SAK: killed process 3492 (console-kit-dae): by fd#9 [ 4337.397978] tty tty7: SAK: killed process 3493 (console-kit-dae): by fd#9 [ 4337.397983] tty tty7: SAK: killed process 3494 (console-kit-dae): by fd#9 [ 4337.397989] tty tty7: SAK: killed process 3495 (console-kit-dae): by fd#9 [ 4337.397994] tty tty7: SAK: killed process 3496 (console-kit-dae): by fd#9 [ 4337.397999] tty tty7: SAK: killed process 3497 (console-kit-dae): by fd#9 [ 4337.398005] tty tty7: SAK: killed process 3498 (console-kit-dae): by fd#9 [ 4337.398010] tty tty7: SAK: killed process 3499 (console-kit-dae): by fd#9 [ 4337.398015] tty tty7: SAK: killed process 3500 (console-kit-dae): by fd#9 [ 4337.398021] tty tty7: SAK: killed process 3501 (console-kit-dae): by fd#9 [ 4337.398026] tty tty7: SAK: killed process 3502 (console-kit-dae): by fd#9 [ 4337.398032] tty tty7: SAK: killed process 3503 (console-kit-dae): by fd#9 [ 4337.398037] tty tty7: SAK: killed process 3504 (console-kit-dae): by fd#9 [ 4337.398042] tty tty7: SAK: killed process 3505 (console-kit-dae): by fd#9 [ 4337.398048] tty tty7: SAK: killed process 3506 (console-kit-dae): by fd#9 [ 4337.398053] tty tty7: SAK: killed process 3507 (console-kit-dae): by fd#9 [ 4337.398059] tty tty7: SAK: killed process 3508 (console-kit-dae): by fd#9 [ 4337.398064] tty tty7: SAK: killed process 3509 (console-kit-dae): by fd#9 [ 4337.398070] tty tty7: SAK: killed process 3510 (console-kit-dae): by fd#9 [ 4337.398075] tty tty7: SAK: killed process 3511 (console-kit-dae): by fd#9 [ 4337.398080] tty tty7: SAK: killed process 3512 (console-kit-dae): by fd#9 [ 4337.398086] tty tty7: SAK: killed process 3513 (console-kit-dae): by fd#9 [ 4337.398091] tty tty7: SAK: killed process 3514 (console-kit-dae): by fd#9 [ 4337.398097] tty tty7: SAK: killed process 3515 (console-kit-dae): by fd#9 [ 4337.398102] tty tty7: SAK: killed process 3516 (console-kit-dae): by fd#9 [ 4337.398107] tty tty7: SAK: killed process 3517 (console-kit-dae): by fd#9 [ 4337.398113] tty tty7: SAK: killed process 3518 (console-kit-dae): by fd#9 [ 4337.398118] tty tty7: SAK: killed process 3519 (console-kit-dae): by fd#9 [ 4337.398124] tty tty7: SAK: killed process 3520 (console-kit-dae): by fd#9 [ 4337.398129] tty tty7: SAK: killed process 3521 (console-kit-dae): by fd#9 [ 4337.398135] tty tty7: SAK: killed process 3522 (console-kit-dae): by fd#9 [ 4337.398141] tty tty7: SAK: killed process 3523 (console-kit-dae): by fd#9 [ 4337.398146] tty tty7: SAK: killed process 3524 (console-kit-dae): by fd#9 [ 4337.398151] tty tty7: SAK: killed process 3525 (console-kit-dae): by fd#9 [ 4337.398157] tty tty7: SAK: killed process 3526 (console-kit-dae): by fd#9 [ 4337.398162] tty tty7: SAK: killed process 3527 (console-kit-dae): by fd#9 [ 4337.398168] tty tty7: SAK: killed process 3528 (console-kit-dae): by fd#9 [ 4337.398173] tty tty7: SAK: killed process 3529 (console-kit-dae): by fd#9 [ 4337.398178] tty tty7: SAK: killed process 3530 (console-kit-dae): by fd#9 [ 4337.398184] tty tty7: SAK: killed process 3531 (console-kit-dae): by fd#9 [ 4337.398189] tty tty7: SAK: killed process 3532 (console-kit-dae): by fd#9 [ 4337.398194] tty tty7: SAK: killed process 3533 (console-kit-dae): by fd#9 [ 4337.398200] tty tty7: SAK: killed process 3534 (console-kit-dae): by fd#9 [ 4337.398205] tty tty7: SAK: killed process 3535 (console-kit-dae): by fd#9 [ 4337.398210] tty tty7: SAK: killed process 3536 (console-kit-dae): by fd#9 [ 4337.398216] tty tty7: SAK: killed process 3537 (console-kit-dae): by fd#9 [ 4337.398221] tty tty7: SAK: killed process 3538 (console-kit-dae): by fd#9 [ 4337.398227] tty tty7: SAK: killed process 3539 (console-kit-dae): by fd#9 [ 4337.398232] tty tty7: SAK: killed process 3540 (console-kit-dae): by fd#9 [ 4337.398237] tty tty7: SAK: killed process 3541 (console-kit-dae): by fd#9 [ 4337.398243] tty tty7: SAK: killed process 3542 (console-kit-dae): by fd#9 [ 4337.398248] tty tty7: SAK: killed process 3543 (console-kit-dae): by fd#9 [ 4337.398253] tty tty7: SAK: killed process 3544 (console-kit-dae): by fd#9 [ 4337.398260] tty tty7: SAK: killed process 3545 (console-kit-dae): by fd#9 [ 4337.398265] tty tty7: SAK: killed process 3546 (console-kit-dae): by fd#9 [ 4337.398270] tty tty7: SAK: killed process 3548 (gmain): by fd#9 [ 4337.398276] tty tty7: SAK: killed process 3549 (gdbus): by fd#9 [ 4337.743402] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4349.750345] traps: clock-applet[7160] trap int3 ip:b71bafc0 sp:bffdd3b0 error:0 in libglib-2.0.so.0.5000.3[b716e000+12a000] [ 4349.751834] traps: mateweather-app[7164] trap int3 ip:b729ffc0 sp:bfc45bf0 error:0 in libglib-2.0.so.0.5000.3[b7253000+12a000] [ 4352.181317] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4352.183330] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.187927] wlan0: authenticated [ 4352.192203] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.194932] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4352.199395] wlan0: associated [ 4688.523006] sysrq: SAK [ 4688.523318] tty tty7: SAK: killed process 6791 (Xorg): by session [ 4688.523683] tty tty7: SAK: killed process 6791 (Xorg): by controlling tty [ 4688.523930] tty tty7: SAK: killed process 7017 (console-kit-dae): by fd#9 [ 4688.524330] tty tty7: SAK: killed process 7018 (console-kit-dae): by fd#9 [ 4688.524337] tty tty7: SAK: killed process 7019 (console-kit-dae): by fd#9 [ 4688.524342] tty tty7: SAK: killed process 7020 (console-kit-dae): by fd#9 [ 4688.524347] tty tty7: SAK: killed process 7021 (console-kit-dae): by fd#9 [ 4688.524353] tty tty7: SAK: killed process 7022 (console-kit-dae): by fd#9 [ 4688.524358] tty tty7: SAK: killed process 7023 (console-kit-dae): by fd#9 [ 4688.524363] tty tty7: SAK: killed process 7024 (console-kit-dae): by fd#9 [ 4688.524369] tty tty7: SAK: killed process 7025 (console-kit-dae): by fd#9 [ 4688.524374] tty tty7: SAK: killed process 7026 (console-kit-dae): by fd#9 [ 4688.524380] tty tty7: SAK: killed process 7027 (console-kit-dae): by fd#9 [ 4688.524385] tty tty7: SAK: killed process 7028 (console-kit-dae): by fd#9 [ 4688.524391] tty tty7: SAK: killed process 7029 (console-kit-dae): by fd#9 [ 4688.524396] tty tty7: SAK: killed process 7030 (console-kit-dae): by fd#9 [ 4688.524402] tty tty7: SAK: killed process 7031 (console-kit-dae): by fd#9 [ 4688.524407] tty tty7: SAK: killed process 7032 (console-kit-dae): by fd#9 [ 4688.524412] tty tty7: SAK: killed process 7033 (console-kit-dae): by fd#9 [ 4688.524419] tty tty7: SAK: killed process 7034 (console-kit-dae): by fd#9 [ 4688.524424] tty tty7: SAK: killed process 7035 (console-kit-dae): by fd#9 [ 4688.524429] tty tty7: SAK: killed process 7036 (console-kit-dae): by fd#9 [ 4688.524435] tty tty7: SAK: killed process 7037 (console-kit-dae): by fd#9 [ 4688.524440] tty tty7: SAK: killed process 7038 (console-kit-dae): by fd#9 [ 4688.524446] tty tty7: SAK: killed process 7039 (console-kit-dae): by fd#9 [ 4688.524451] tty tty7: SAK: killed process 7040 (console-kit-dae): by fd#9 [ 4688.524456] tty tty7: SAK: killed process 7041 (console-kit-dae): by fd#9 [ 4688.524462] tty tty7: SAK: killed process 7042 (console-kit-dae): by fd#9 [ 4688.524467] tty tty7: SAK: killed process 7043 (console-kit-dae): by fd#9 [ 4688.524473] tty tty7: SAK: killed process 7044 (console-kit-dae): by fd#9 [ 4688.524478] tty tty7: SAK: killed process 7045 (console-kit-dae): by fd#9 [ 4688.524483] tty tty7: SAK: killed process 7046 (console-kit-dae): by fd#9 [ 4688.524489] tty tty7: SAK: killed process 7047 (console-kit-dae): by fd#9 [ 4688.524494] tty tty7: SAK: killed process 7048 (console-kit-dae): by fd#9 [ 4688.524500] tty tty7: SAK: killed process 7049 (console-kit-dae): by fd#9 [ 4688.524505] tty tty7: SAK: killed process 7050 (console-kit-dae): by fd#9 [ 4688.524511] tty tty7: SAK: killed process 7051 (console-kit-dae): by fd#9 [ 4688.524516] tty tty7: SAK: killed process 7052 (console-kit-dae): by fd#9 [ 4688.524521] tty tty7: SAK: killed process 7053 (console-kit-dae): by fd#9 [ 4688.524527] tty tty7: SAK: killed process 7054 (console-kit-dae): by fd#9 [ 4688.524532] tty tty7: SAK: killed process 7055 (console-kit-dae): by fd#9 [ 4688.524538] tty tty7: SAK: killed process 7056 (console-kit-dae): by fd#9 [ 4688.524543] tty tty7: SAK: killed process 7057 (console-kit-dae): by fd#9 [ 4688.524549] tty tty7: SAK: killed process 7058 (console-kit-dae): by fd#9 [ 4688.524554] tty tty7: SAK: killed process 7059 (console-kit-dae): by fd#9 [ 4688.524560] tty tty7: SAK: killed process 7060 (console-kit-dae): by fd#9 [ 4688.524565] tty tty7: SAK: killed process 7061 (console-kit-dae): by fd#9 [ 4688.524570] tty tty7: SAK: killed process 7062 (console-kit-dae): by fd#9 [ 4688.524576] tty tty7: SAK: killed process 7063 (console-kit-dae): by fd#9 [ 4688.524581] tty tty7: SAK: killed process 7064 (console-kit-dae): by fd#9 [ 4688.524587] tty tty7: SAK: killed process 7065 (console-kit-dae): by fd#9 [ 4688.524593] tty tty7: SAK: killed process 7066 (console-kit-dae): by fd#9 [ 4688.524598] tty tty7: SAK: killed process 7067 (console-kit-dae): by fd#9 [ 4688.524603] tty tty7: SAK: killed process 7068 (console-kit-dae): by fd#9 [ 4688.524609] tty tty7: SAK: killed process 7069 (console-kit-dae): by fd#9 [ 4688.524614] tty tty7: SAK: killed process 7070 (console-kit-dae): by fd#9 [ 4688.524620] tty tty7: SAK: killed process 7071 (console-kit-dae): by fd#9 [ 4688.524625] tty tty7: SAK: killed process 7072 (console-kit-dae): by fd#9 [ 4688.524631] tty tty7: SAK: killed process 7073 (console-kit-dae): by fd#9 [ 4688.524636] tty tty7: SAK: killed process 7074 (console-kit-dae): by fd#9 [ 4688.524642] tty tty7: SAK: killed process 7075 (console-kit-dae): by fd#9 [ 4688.524648] tty tty7: SAK: killed process 7076 (console-kit-dae): by fd#9 [ 4688.524653] tty tty7: SAK: killed process 7077 (console-kit-dae): by fd#9 [ 4688.524659] tty tty7: SAK: killed process 7078 (console-kit-dae): by fd#9 [ 4688.524664] tty tty7: SAK: killed process 7079 (console-kit-dae): by fd#9 [ 4688.524670] tty tty7: SAK: killed process 7083 (gmain): by fd#9 [ 4688.524675] tty tty7: SAK: killed process 7085 (gdbus): by fd#9 [ 4688.780517] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4698.601308] traps: clock-applet[7813] trap int3 ip:b71e9fc0 sp:bf901050 error:0 in libglib-2.0.so.0.5000.3[b719d000+12a000] [ 4698.676549] traps: mateweather-app[7814] trap int3 ip:b7260fc0 sp:bfcfb9d0 error:0 in libglib-2.0.so.0.5000.3[b7214000+12a000] [ 4700.456620] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4700.456710] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.459606] wlan0: authenticated [ 4700.460449] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.463153] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4700.465007] wlan0: associated
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [2 Digital signature <application/pgp-signature (7bit)>]
On Wed 2020-05-20 13:37:02, Takashi Iwai wrote:
On Wed, 20 May 2020 13:11:37 +0200, Pavel Machek wrote:
Hi!
My window manager stopped responding. I was able to recover machine using sysrq-k.
I started writing nice report, when session failed second time. And then third time on next attempt.
Any ideas?
Do you know when the regression started? There have been significant code changes regarding the sound buffer management, and it's merged in 5.6-rc1. Other than that, I have no idea yet.
It is first time I seen this. I may have missed the oops in the logs, but I would not miss marco dying.
So... AFAICT this was not there in -next20200505 or so.
Best regard, Pavel
[ 3730.016148] perf: interrupt took too long (3135 > 3133), lowering kernel.perf_event_max_sample_rate to 63750 [ 4274.984810] BUG: unable to handle page fault for address: f8600000 [ 4274.984821] #PF: supervisor write access in kernel mode [ 4274.984827] #PF: error_code(0x0002) - not-present page [ 4274.984833] *pdpt = 000000002c0b2001 *pde = 0000000000000000 [ 4274.984843] Oops: 0002 [#1] PREEMPT SMP PTI [ 4274.984853] CPU: 1 PID: 3351 Comm: marco Not tainted 5.7.0-rc6-next-20200519+ #115 [ 4274.984859] Hardware name: LENOVO 17097HU/17097HU, BIOS 7BETD8WW (2.19 ) 03/31/2011 [ 4274.984871] EIP: memset+0xb/0x20 [ 4274.984878] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.984885] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.984892] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.984898] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.984905] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4274.984910] Call Trace: [ 4274.984923] snd_pcm_hw_params+0x38d/0x400 [ 4274.984930] snd_pcm_ioctl+0x187/0xe80 [ 4274.984940] ? __fget_files+0x86/0xc0 [ 4274.984947] ? __fget_light+0x6b/0x80 [ 4274.984954] ? snd_pcm_status_user64+0x90/0x90 [ 4274.984962] ksys_ioctl+0x1cd/0x880 [ 4274.984971] ? ksys_mmap_pgoff+0x81/0xc0 [ 4274.984978] ? fput+0xd/0x10 [ 4274.984984] ? ksys_mmap_pgoff+0x8d/0xc0 [ 4274.984991] __ia32_sys_ioctl+0x10/0x12 [ 4274.985000] do_int80_syscall_32+0x3c/0x100 [ 4274.985010] entry_INT80_32+0x116/0x116 [ 4274.985016] EIP: 0xb7f17092 [ 4274.985023] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 e8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 <c3> 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00 [ 4274.985030] EAX: ffffffda EBX: 00000011 ECX: c25c4111 EDX: bf8d5280 [ 4274.985036] ESI: 08250880 EDI: bf8d5280 EBP: 082a4150 ESP: bf8d50a4 [ 4274.985042] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292 [ 4274.985051] ? nmi+0xcc/0x2bc [ 4274.985055] Modules linked in: [ 4274.985063] CR2: 00000000f8600000 [ 4274.985072] ---[ end trace 61b0852711d6de1d ]--- [ 4274.985079] EIP: memset+0xb/0x20 [ 4274.985086] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.985092] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.985099] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.985105] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.985112] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4337.396551] sysrq: SAK [ 4337.397010] tty tty7: SAK: killed process 2963 (Xorg): by session [ 4337.397282] tty tty7: SAK: killed process 2963 (Xorg): by controlling tty [ 4337.397621] tty tty7: SAK: killed process 3484 (console-kit-dae): by fd#9 [ 4337.397934] tty tty7: SAK: killed process 3485 (console-kit-dae): by fd#9 [ 4337.397940] tty tty7: SAK: killed process 3486 (console-kit-dae): by fd#9 [ 4337.397945] tty tty7: SAK: killed process 3487 (console-kit-dae): by fd#9 [ 4337.397951] tty tty7: SAK: killed process 3488 (console-kit-dae): by fd#9 [ 4337.397956] tty tty7: SAK: killed process 3489 (console-kit-dae): by fd#9 [ 4337.397961] tty tty7: SAK: killed process 3490 (console-kit-dae): by fd#9 [ 4337.397967] tty tty7: SAK: killed process 3491 (console-kit-dae): by fd#9 [ 4337.397972] tty tty7: SAK: killed process 3492 (console-kit-dae): by fd#9 [ 4337.397978] tty tty7: SAK: killed process 3493 (console-kit-dae): by fd#9 [ 4337.397983] tty tty7: SAK: killed process 3494 (console-kit-dae): by fd#9 [ 4337.397989] tty tty7: SAK: killed process 3495 (console-kit-dae): by fd#9 [ 4337.397994] tty tty7: SAK: killed process 3496 (console-kit-dae): by fd#9 [ 4337.397999] tty tty7: SAK: killed process 3497 (console-kit-dae): by fd#9 [ 4337.398005] tty tty7: SAK: killed process 3498 (console-kit-dae): by fd#9 [ 4337.398010] tty tty7: SAK: killed process 3499 (console-kit-dae): by fd#9 [ 4337.398015] tty tty7: SAK: killed process 3500 (console-kit-dae): by fd#9 [ 4337.398021] tty tty7: SAK: killed process 3501 (console-kit-dae): by fd#9 [ 4337.398026] tty tty7: SAK: killed process 3502 (console-kit-dae): by fd#9 [ 4337.398032] tty tty7: SAK: killed process 3503 (console-kit-dae): by fd#9 [ 4337.398037] tty tty7: SAK: killed process 3504 (console-kit-dae): by fd#9 [ 4337.398042] tty tty7: SAK: killed process 3505 (console-kit-dae): by fd#9 [ 4337.398048] tty tty7: SAK: killed process 3506 (console-kit-dae): by fd#9 [ 4337.398053] tty tty7: SAK: killed process 3507 (console-kit-dae): by fd#9 [ 4337.398059] tty tty7: SAK: killed process 3508 (console-kit-dae): by fd#9 [ 4337.398064] tty tty7: SAK: killed process 3509 (console-kit-dae): by fd#9 [ 4337.398070] tty tty7: SAK: killed process 3510 (console-kit-dae): by fd#9 [ 4337.398075] tty tty7: SAK: killed process 3511 (console-kit-dae): by fd#9 [ 4337.398080] tty tty7: SAK: killed process 3512 (console-kit-dae): by fd#9 [ 4337.398086] tty tty7: SAK: killed process 3513 (console-kit-dae): by fd#9 [ 4337.398091] tty tty7: SAK: killed process 3514 (console-kit-dae): by fd#9 [ 4337.398097] tty tty7: SAK: killed process 3515 (console-kit-dae): by fd#9 [ 4337.398102] tty tty7: SAK: killed process 3516 (console-kit-dae): by fd#9 [ 4337.398107] tty tty7: SAK: killed process 3517 (console-kit-dae): by fd#9 [ 4337.398113] tty tty7: SAK: killed process 3518 (console-kit-dae): by fd#9 [ 4337.398118] tty tty7: SAK: killed process 3519 (console-kit-dae): by fd#9 [ 4337.398124] tty tty7: SAK: killed process 3520 (console-kit-dae): by fd#9 [ 4337.398129] tty tty7: SAK: killed process 3521 (console-kit-dae): by fd#9 [ 4337.398135] tty tty7: SAK: killed process 3522 (console-kit-dae): by fd#9 [ 4337.398141] tty tty7: SAK: killed process 3523 (console-kit-dae): by fd#9 [ 4337.398146] tty tty7: SAK: killed process 3524 (console-kit-dae): by fd#9 [ 4337.398151] tty tty7: SAK: killed process 3525 (console-kit-dae): by fd#9 [ 4337.398157] tty tty7: SAK: killed process 3526 (console-kit-dae): by fd#9 [ 4337.398162] tty tty7: SAK: killed process 3527 (console-kit-dae): by fd#9 [ 4337.398168] tty tty7: SAK: killed process 3528 (console-kit-dae): by fd#9 [ 4337.398173] tty tty7: SAK: killed process 3529 (console-kit-dae): by fd#9 [ 4337.398178] tty tty7: SAK: killed process 3530 (console-kit-dae): by fd#9 [ 4337.398184] tty tty7: SAK: killed process 3531 (console-kit-dae): by fd#9 [ 4337.398189] tty tty7: SAK: killed process 3532 (console-kit-dae): by fd#9 [ 4337.398194] tty tty7: SAK: killed process 3533 (console-kit-dae): by fd#9 [ 4337.398200] tty tty7: SAK: killed process 3534 (console-kit-dae): by fd#9 [ 4337.398205] tty tty7: SAK: killed process 3535 (console-kit-dae): by fd#9 [ 4337.398210] tty tty7: SAK: killed process 3536 (console-kit-dae): by fd#9 [ 4337.398216] tty tty7: SAK: killed process 3537 (console-kit-dae): by fd#9 [ 4337.398221] tty tty7: SAK: killed process 3538 (console-kit-dae): by fd#9 [ 4337.398227] tty tty7: SAK: killed process 3539 (console-kit-dae): by fd#9 [ 4337.398232] tty tty7: SAK: killed process 3540 (console-kit-dae): by fd#9 [ 4337.398237] tty tty7: SAK: killed process 3541 (console-kit-dae): by fd#9 [ 4337.398243] tty tty7: SAK: killed process 3542 (console-kit-dae): by fd#9 [ 4337.398248] tty tty7: SAK: killed process 3543 (console-kit-dae): by fd#9 [ 4337.398253] tty tty7: SAK: killed process 3544 (console-kit-dae): by fd#9 [ 4337.398260] tty tty7: SAK: killed process 3545 (console-kit-dae): by fd#9 [ 4337.398265] tty tty7: SAK: killed process 3546 (console-kit-dae): by fd#9 [ 4337.398270] tty tty7: SAK: killed process 3548 (gmain): by fd#9 [ 4337.398276] tty tty7: SAK: killed process 3549 (gdbus): by fd#9 [ 4337.743402] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4349.750345] traps: clock-applet[7160] trap int3 ip:b71bafc0 sp:bffdd3b0 error:0 in libglib-2.0.so.0.5000.3[b716e000+12a000] [ 4349.751834] traps: mateweather-app[7164] trap int3 ip:b729ffc0 sp:bfc45bf0 error:0 in libglib-2.0.so.0.5000.3[b7253000+12a000] [ 4352.181317] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4352.183330] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.187927] wlan0: authenticated [ 4352.192203] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.194932] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4352.199395] wlan0: associated [ 4688.523006] sysrq: SAK [ 4688.523318] tty tty7: SAK: killed process 6791 (Xorg): by session [ 4688.523683] tty tty7: SAK: killed process 6791 (Xorg): by controlling tty [ 4688.523930] tty tty7: SAK: killed process 7017 (console-kit-dae): by fd#9 [ 4688.524330] tty tty7: SAK: killed process 7018 (console-kit-dae): by fd#9 [ 4688.524337] tty tty7: SAK: killed process 7019 (console-kit-dae): by fd#9 [ 4688.524342] tty tty7: SAK: killed process 7020 (console-kit-dae): by fd#9 [ 4688.524347] tty tty7: SAK: killed process 7021 (console-kit-dae): by fd#9 [ 4688.524353] tty tty7: SAK: killed process 7022 (console-kit-dae): by fd#9 [ 4688.524358] tty tty7: SAK: killed process 7023 (console-kit-dae): by fd#9 [ 4688.524363] tty tty7: SAK: killed process 7024 (console-kit-dae): by fd#9 [ 4688.524369] tty tty7: SAK: killed process 7025 (console-kit-dae): by fd#9 [ 4688.524374] tty tty7: SAK: killed process 7026 (console-kit-dae): by fd#9 [ 4688.524380] tty tty7: SAK: killed process 7027 (console-kit-dae): by fd#9 [ 4688.524385] tty tty7: SAK: killed process 7028 (console-kit-dae): by fd#9 [ 4688.524391] tty tty7: SAK: killed process 7029 (console-kit-dae): by fd#9 [ 4688.524396] tty tty7: SAK: killed process 7030 (console-kit-dae): by fd#9 [ 4688.524402] tty tty7: SAK: killed process 7031 (console-kit-dae): by fd#9 [ 4688.524407] tty tty7: SAK: killed process 7032 (console-kit-dae): by fd#9 [ 4688.524412] tty tty7: SAK: killed process 7033 (console-kit-dae): by fd#9 [ 4688.524419] tty tty7: SAK: killed process 7034 (console-kit-dae): by fd#9 [ 4688.524424] tty tty7: SAK: killed process 7035 (console-kit-dae): by fd#9 [ 4688.524429] tty tty7: SAK: killed process 7036 (console-kit-dae): by fd#9 [ 4688.524435] tty tty7: SAK: killed process 7037 (console-kit-dae): by fd#9 [ 4688.524440] tty tty7: SAK: killed process 7038 (console-kit-dae): by fd#9 [ 4688.524446] tty tty7: SAK: killed process 7039 (console-kit-dae): by fd#9 [ 4688.524451] tty tty7: SAK: killed process 7040 (console-kit-dae): by fd#9 [ 4688.524456] tty tty7: SAK: killed process 7041 (console-kit-dae): by fd#9 [ 4688.524462] tty tty7: SAK: killed process 7042 (console-kit-dae): by fd#9 [ 4688.524467] tty tty7: SAK: killed process 7043 (console-kit-dae): by fd#9 [ 4688.524473] tty tty7: SAK: killed process 7044 (console-kit-dae): by fd#9 [ 4688.524478] tty tty7: SAK: killed process 7045 (console-kit-dae): by fd#9 [ 4688.524483] tty tty7: SAK: killed process 7046 (console-kit-dae): by fd#9 [ 4688.524489] tty tty7: SAK: killed process 7047 (console-kit-dae): by fd#9 [ 4688.524494] tty tty7: SAK: killed process 7048 (console-kit-dae): by fd#9 [ 4688.524500] tty tty7: SAK: killed process 7049 (console-kit-dae): by fd#9 [ 4688.524505] tty tty7: SAK: killed process 7050 (console-kit-dae): by fd#9 [ 4688.524511] tty tty7: SAK: killed process 7051 (console-kit-dae): by fd#9 [ 4688.524516] tty tty7: SAK: killed process 7052 (console-kit-dae): by fd#9 [ 4688.524521] tty tty7: SAK: killed process 7053 (console-kit-dae): by fd#9 [ 4688.524527] tty tty7: SAK: killed process 7054 (console-kit-dae): by fd#9 [ 4688.524532] tty tty7: SAK: killed process 7055 (console-kit-dae): by fd#9 [ 4688.524538] tty tty7: SAK: killed process 7056 (console-kit-dae): by fd#9 [ 4688.524543] tty tty7: SAK: killed process 7057 (console-kit-dae): by fd#9 [ 4688.524549] tty tty7: SAK: killed process 7058 (console-kit-dae): by fd#9 [ 4688.524554] tty tty7: SAK: killed process 7059 (console-kit-dae): by fd#9 [ 4688.524560] tty tty7: SAK: killed process 7060 (console-kit-dae): by fd#9 [ 4688.524565] tty tty7: SAK: killed process 7061 (console-kit-dae): by fd#9 [ 4688.524570] tty tty7: SAK: killed process 7062 (console-kit-dae): by fd#9 [ 4688.524576] tty tty7: SAK: killed process 7063 (console-kit-dae): by fd#9 [ 4688.524581] tty tty7: SAK: killed process 7064 (console-kit-dae): by fd#9 [ 4688.524587] tty tty7: SAK: killed process 7065 (console-kit-dae): by fd#9 [ 4688.524593] tty tty7: SAK: killed process 7066 (console-kit-dae): by fd#9 [ 4688.524598] tty tty7: SAK: killed process 7067 (console-kit-dae): by fd#9 [ 4688.524603] tty tty7: SAK: killed process 7068 (console-kit-dae): by fd#9 [ 4688.524609] tty tty7: SAK: killed process 7069 (console-kit-dae): by fd#9 [ 4688.524614] tty tty7: SAK: killed process 7070 (console-kit-dae): by fd#9 [ 4688.524620] tty tty7: SAK: killed process 7071 (console-kit-dae): by fd#9 [ 4688.524625] tty tty7: SAK: killed process 7072 (console-kit-dae): by fd#9 [ 4688.524631] tty tty7: SAK: killed process 7073 (console-kit-dae): by fd#9 [ 4688.524636] tty tty7: SAK: killed process 7074 (console-kit-dae): by fd#9 [ 4688.524642] tty tty7: SAK: killed process 7075 (console-kit-dae): by fd#9 [ 4688.524648] tty tty7: SAK: killed process 7076 (console-kit-dae): by fd#9 [ 4688.524653] tty tty7: SAK: killed process 7077 (console-kit-dae): by fd#9 [ 4688.524659] tty tty7: SAK: killed process 7078 (console-kit-dae): by fd#9 [ 4688.524664] tty tty7: SAK: killed process 7079 (console-kit-dae): by fd#9 [ 4688.524670] tty tty7: SAK: killed process 7083 (gmain): by fd#9 [ 4688.524675] tty tty7: SAK: killed process 7085 (gdbus): by fd#9 [ 4688.780517] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4698.601308] traps: clock-applet[7813] trap int3 ip:b71e9fc0 sp:bf901050 error:0 in libglib-2.0.so.0.5000.3[b719d000+12a000] [ 4698.676549] traps: mateweather-app[7814] trap int3 ip:b7260fc0 sp:bfcfb9d0 error:0 in libglib-2.0.so.0.5000.3[b7214000+12a000] [ 4700.456620] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4700.456710] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.459606] wlan0: authenticated [ 4700.460449] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.463153] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4700.465007] wlan0: associated
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [2 Digital signature <application/pgp-signature (7bit)>]
On Wed, 20 May 2020 13:39:06 +0200, Pavel Machek wrote:
On Wed 2020-05-20 13:37:02, Takashi Iwai wrote:
On Wed, 20 May 2020 13:11:37 +0200, Pavel Machek wrote:
Hi!
My window manager stopped responding. I was able to recover machine using sysrq-k.
I started writing nice report, when session failed second time. And then third time on next attempt.
Any ideas?
Do you know when the regression started? There have been significant code changes regarding the sound buffer management, and it's merged in 5.6-rc1. Other than that, I have no idea yet.
It is first time I seen this. I may have missed the oops in the logs, but I would not miss marco dying.
So... AFAICT this was not there in -next20200505 or so.
Ah so it's so new. Then I don't think it's from the sound driver code change; there haven't been much changes in the core part that may lead to such an error.
Takashi
Best regard, Pavel
[ 3730.016148] perf: interrupt took too long (3135 > 3133), lowering kernel.perf_event_max_sample_rate to 63750 [ 4274.984810] BUG: unable to handle page fault for address: f8600000 [ 4274.984821] #PF: supervisor write access in kernel mode [ 4274.984827] #PF: error_code(0x0002) - not-present page [ 4274.984833] *pdpt = 000000002c0b2001 *pde = 0000000000000000 [ 4274.984843] Oops: 0002 [#1] PREEMPT SMP PTI [ 4274.984853] CPU: 1 PID: 3351 Comm: marco Not tainted 5.7.0-rc6-next-20200519+ #115 [ 4274.984859] Hardware name: LENOVO 17097HU/17097HU, BIOS 7BETD8WW (2.19 ) 03/31/2011 [ 4274.984871] EIP: memset+0xb/0x20 [ 4274.984878] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.984885] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.984892] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.984898] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.984905] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4274.984910] Call Trace: [ 4274.984923] snd_pcm_hw_params+0x38d/0x400 [ 4274.984930] snd_pcm_ioctl+0x187/0xe80 [ 4274.984940] ? __fget_files+0x86/0xc0 [ 4274.984947] ? __fget_light+0x6b/0x80 [ 4274.984954] ? snd_pcm_status_user64+0x90/0x90 [ 4274.984962] ksys_ioctl+0x1cd/0x880 [ 4274.984971] ? ksys_mmap_pgoff+0x81/0xc0 [ 4274.984978] ? fput+0xd/0x10 [ 4274.984984] ? ksys_mmap_pgoff+0x8d/0xc0 [ 4274.984991] __ia32_sys_ioctl+0x10/0x12 [ 4274.985000] do_int80_syscall_32+0x3c/0x100 [ 4274.985010] entry_INT80_32+0x116/0x116 [ 4274.985016] EIP: 0xb7f17092 [ 4274.985023] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 e8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 <c3> 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00 [ 4274.985030] EAX: ffffffda EBX: 00000011 ECX: c25c4111 EDX: bf8d5280 [ 4274.985036] ESI: 08250880 EDI: bf8d5280 EBP: 082a4150 ESP: bf8d50a4 [ 4274.985042] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292 [ 4274.985051] ? nmi+0xcc/0x2bc [ 4274.985055] Modules linked in: [ 4274.985063] CR2: 00000000f8600000 [ 4274.985072] ---[ end trace 61b0852711d6de1d ]--- [ 4274.985079] EIP: memset+0xb/0x20 [ 4274.985086] Code: f9 01 72 0b 8a 0e 88 0f 8d b4 26 00 00 00 00 8b 45 f0 83 c4 04 5b 5e 5f 5d c3 8d 74 26 00 90 55 89 e5 57 89 c7 53 89 c3 89 d0 <f3> aa 89 d8 5b 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 89 [ 4274.985092] EAX: 00000000 EBX: f85fe000 ECX: 0001e000 EDX: 00000000 [ 4274.985099] ESI: ed158400 EDI: f8600000 EBP: edcc9e6c ESP: edcc9e64 [ 4274.985105] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246 [ 4274.985112] CR0: 80050033 CR2: f8600000 CR3: 2c114000 CR4: 000006b0 [ 4337.396551] sysrq: SAK [ 4337.397010] tty tty7: SAK: killed process 2963 (Xorg): by session [ 4337.397282] tty tty7: SAK: killed process 2963 (Xorg): by controlling tty [ 4337.397621] tty tty7: SAK: killed process 3484 (console-kit-dae): by fd#9 [ 4337.397934] tty tty7: SAK: killed process 3485 (console-kit-dae): by fd#9 [ 4337.397940] tty tty7: SAK: killed process 3486 (console-kit-dae): by fd#9 [ 4337.397945] tty tty7: SAK: killed process 3487 (console-kit-dae): by fd#9 [ 4337.397951] tty tty7: SAK: killed process 3488 (console-kit-dae): by fd#9 [ 4337.397956] tty tty7: SAK: killed process 3489 (console-kit-dae): by fd#9 [ 4337.397961] tty tty7: SAK: killed process 3490 (console-kit-dae): by fd#9 [ 4337.397967] tty tty7: SAK: killed process 3491 (console-kit-dae): by fd#9 [ 4337.397972] tty tty7: SAK: killed process 3492 (console-kit-dae): by fd#9 [ 4337.397978] tty tty7: SAK: killed process 3493 (console-kit-dae): by fd#9 [ 4337.397983] tty tty7: SAK: killed process 3494 (console-kit-dae): by fd#9 [ 4337.397989] tty tty7: SAK: killed process 3495 (console-kit-dae): by fd#9 [ 4337.397994] tty tty7: SAK: killed process 3496 (console-kit-dae): by fd#9 [ 4337.397999] tty tty7: SAK: killed process 3497 (console-kit-dae): by fd#9 [ 4337.398005] tty tty7: SAK: killed process 3498 (console-kit-dae): by fd#9 [ 4337.398010] tty tty7: SAK: killed process 3499 (console-kit-dae): by fd#9 [ 4337.398015] tty tty7: SAK: killed process 3500 (console-kit-dae): by fd#9 [ 4337.398021] tty tty7: SAK: killed process 3501 (console-kit-dae): by fd#9 [ 4337.398026] tty tty7: SAK: killed process 3502 (console-kit-dae): by fd#9 [ 4337.398032] tty tty7: SAK: killed process 3503 (console-kit-dae): by fd#9 [ 4337.398037] tty tty7: SAK: killed process 3504 (console-kit-dae): by fd#9 [ 4337.398042] tty tty7: SAK: killed process 3505 (console-kit-dae): by fd#9 [ 4337.398048] tty tty7: SAK: killed process 3506 (console-kit-dae): by fd#9 [ 4337.398053] tty tty7: SAK: killed process 3507 (console-kit-dae): by fd#9 [ 4337.398059] tty tty7: SAK: killed process 3508 (console-kit-dae): by fd#9 [ 4337.398064] tty tty7: SAK: killed process 3509 (console-kit-dae): by fd#9 [ 4337.398070] tty tty7: SAK: killed process 3510 (console-kit-dae): by fd#9 [ 4337.398075] tty tty7: SAK: killed process 3511 (console-kit-dae): by fd#9 [ 4337.398080] tty tty7: SAK: killed process 3512 (console-kit-dae): by fd#9 [ 4337.398086] tty tty7: SAK: killed process 3513 (console-kit-dae): by fd#9 [ 4337.398091] tty tty7: SAK: killed process 3514 (console-kit-dae): by fd#9 [ 4337.398097] tty tty7: SAK: killed process 3515 (console-kit-dae): by fd#9 [ 4337.398102] tty tty7: SAK: killed process 3516 (console-kit-dae): by fd#9 [ 4337.398107] tty tty7: SAK: killed process 3517 (console-kit-dae): by fd#9 [ 4337.398113] tty tty7: SAK: killed process 3518 (console-kit-dae): by fd#9 [ 4337.398118] tty tty7: SAK: killed process 3519 (console-kit-dae): by fd#9 [ 4337.398124] tty tty7: SAK: killed process 3520 (console-kit-dae): by fd#9 [ 4337.398129] tty tty7: SAK: killed process 3521 (console-kit-dae): by fd#9 [ 4337.398135] tty tty7: SAK: killed process 3522 (console-kit-dae): by fd#9 [ 4337.398141] tty tty7: SAK: killed process 3523 (console-kit-dae): by fd#9 [ 4337.398146] tty tty7: SAK: killed process 3524 (console-kit-dae): by fd#9 [ 4337.398151] tty tty7: SAK: killed process 3525 (console-kit-dae): by fd#9 [ 4337.398157] tty tty7: SAK: killed process 3526 (console-kit-dae): by fd#9 [ 4337.398162] tty tty7: SAK: killed process 3527 (console-kit-dae): by fd#9 [ 4337.398168] tty tty7: SAK: killed process 3528 (console-kit-dae): by fd#9 [ 4337.398173] tty tty7: SAK: killed process 3529 (console-kit-dae): by fd#9 [ 4337.398178] tty tty7: SAK: killed process 3530 (console-kit-dae): by fd#9 [ 4337.398184] tty tty7: SAK: killed process 3531 (console-kit-dae): by fd#9 [ 4337.398189] tty tty7: SAK: killed process 3532 (console-kit-dae): by fd#9 [ 4337.398194] tty tty7: SAK: killed process 3533 (console-kit-dae): by fd#9 [ 4337.398200] tty tty7: SAK: killed process 3534 (console-kit-dae): by fd#9 [ 4337.398205] tty tty7: SAK: killed process 3535 (console-kit-dae): by fd#9 [ 4337.398210] tty tty7: SAK: killed process 3536 (console-kit-dae): by fd#9 [ 4337.398216] tty tty7: SAK: killed process 3537 (console-kit-dae): by fd#9 [ 4337.398221] tty tty7: SAK: killed process 3538 (console-kit-dae): by fd#9 [ 4337.398227] tty tty7: SAK: killed process 3539 (console-kit-dae): by fd#9 [ 4337.398232] tty tty7: SAK: killed process 3540 (console-kit-dae): by fd#9 [ 4337.398237] tty tty7: SAK: killed process 3541 (console-kit-dae): by fd#9 [ 4337.398243] tty tty7: SAK: killed process 3542 (console-kit-dae): by fd#9 [ 4337.398248] tty tty7: SAK: killed process 3543 (console-kit-dae): by fd#9 [ 4337.398253] tty tty7: SAK: killed process 3544 (console-kit-dae): by fd#9 [ 4337.398260] tty tty7: SAK: killed process 3545 (console-kit-dae): by fd#9 [ 4337.398265] tty tty7: SAK: killed process 3546 (console-kit-dae): by fd#9 [ 4337.398270] tty tty7: SAK: killed process 3548 (gmain): by fd#9 [ 4337.398276] tty tty7: SAK: killed process 3549 (gdbus): by fd#9 [ 4337.743402] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4349.750345] traps: clock-applet[7160] trap int3 ip:b71bafc0 sp:bffdd3b0 error:0 in libglib-2.0.so.0.5000.3[b716e000+12a000] [ 4349.751834] traps: mateweather-app[7164] trap int3 ip:b729ffc0 sp:bfc45bf0 error:0 in libglib-2.0.so.0.5000.3[b7253000+12a000] [ 4352.181317] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4352.183330] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.187927] wlan0: authenticated [ 4352.192203] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4352.194932] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4352.199395] wlan0: associated [ 4688.523006] sysrq: SAK [ 4688.523318] tty tty7: SAK: killed process 6791 (Xorg): by session [ 4688.523683] tty tty7: SAK: killed process 6791 (Xorg): by controlling tty [ 4688.523930] tty tty7: SAK: killed process 7017 (console-kit-dae): by fd#9 [ 4688.524330] tty tty7: SAK: killed process 7018 (console-kit-dae): by fd#9 [ 4688.524337] tty tty7: SAK: killed process 7019 (console-kit-dae): by fd#9 [ 4688.524342] tty tty7: SAK: killed process 7020 (console-kit-dae): by fd#9 [ 4688.524347] tty tty7: SAK: killed process 7021 (console-kit-dae): by fd#9 [ 4688.524353] tty tty7: SAK: killed process 7022 (console-kit-dae): by fd#9 [ 4688.524358] tty tty7: SAK: killed process 7023 (console-kit-dae): by fd#9 [ 4688.524363] tty tty7: SAK: killed process 7024 (console-kit-dae): by fd#9 [ 4688.524369] tty tty7: SAK: killed process 7025 (console-kit-dae): by fd#9 [ 4688.524374] tty tty7: SAK: killed process 7026 (console-kit-dae): by fd#9 [ 4688.524380] tty tty7: SAK: killed process 7027 (console-kit-dae): by fd#9 [ 4688.524385] tty tty7: SAK: killed process 7028 (console-kit-dae): by fd#9 [ 4688.524391] tty tty7: SAK: killed process 7029 (console-kit-dae): by fd#9 [ 4688.524396] tty tty7: SAK: killed process 7030 (console-kit-dae): by fd#9 [ 4688.524402] tty tty7: SAK: killed process 7031 (console-kit-dae): by fd#9 [ 4688.524407] tty tty7: SAK: killed process 7032 (console-kit-dae): by fd#9 [ 4688.524412] tty tty7: SAK: killed process 7033 (console-kit-dae): by fd#9 [ 4688.524419] tty tty7: SAK: killed process 7034 (console-kit-dae): by fd#9 [ 4688.524424] tty tty7: SAK: killed process 7035 (console-kit-dae): by fd#9 [ 4688.524429] tty tty7: SAK: killed process 7036 (console-kit-dae): by fd#9 [ 4688.524435] tty tty7: SAK: killed process 7037 (console-kit-dae): by fd#9 [ 4688.524440] tty tty7: SAK: killed process 7038 (console-kit-dae): by fd#9 [ 4688.524446] tty tty7: SAK: killed process 7039 (console-kit-dae): by fd#9 [ 4688.524451] tty tty7: SAK: killed process 7040 (console-kit-dae): by fd#9 [ 4688.524456] tty tty7: SAK: killed process 7041 (console-kit-dae): by fd#9 [ 4688.524462] tty tty7: SAK: killed process 7042 (console-kit-dae): by fd#9 [ 4688.524467] tty tty7: SAK: killed process 7043 (console-kit-dae): by fd#9 [ 4688.524473] tty tty7: SAK: killed process 7044 (console-kit-dae): by fd#9 [ 4688.524478] tty tty7: SAK: killed process 7045 (console-kit-dae): by fd#9 [ 4688.524483] tty tty7: SAK: killed process 7046 (console-kit-dae): by fd#9 [ 4688.524489] tty tty7: SAK: killed process 7047 (console-kit-dae): by fd#9 [ 4688.524494] tty tty7: SAK: killed process 7048 (console-kit-dae): by fd#9 [ 4688.524500] tty tty7: SAK: killed process 7049 (console-kit-dae): by fd#9 [ 4688.524505] tty tty7: SAK: killed process 7050 (console-kit-dae): by fd#9 [ 4688.524511] tty tty7: SAK: killed process 7051 (console-kit-dae): by fd#9 [ 4688.524516] tty tty7: SAK: killed process 7052 (console-kit-dae): by fd#9 [ 4688.524521] tty tty7: SAK: killed process 7053 (console-kit-dae): by fd#9 [ 4688.524527] tty tty7: SAK: killed process 7054 (console-kit-dae): by fd#9 [ 4688.524532] tty tty7: SAK: killed process 7055 (console-kit-dae): by fd#9 [ 4688.524538] tty tty7: SAK: killed process 7056 (console-kit-dae): by fd#9 [ 4688.524543] tty tty7: SAK: killed process 7057 (console-kit-dae): by fd#9 [ 4688.524549] tty tty7: SAK: killed process 7058 (console-kit-dae): by fd#9 [ 4688.524554] tty tty7: SAK: killed process 7059 (console-kit-dae): by fd#9 [ 4688.524560] tty tty7: SAK: killed process 7060 (console-kit-dae): by fd#9 [ 4688.524565] tty tty7: SAK: killed process 7061 (console-kit-dae): by fd#9 [ 4688.524570] tty tty7: SAK: killed process 7062 (console-kit-dae): by fd#9 [ 4688.524576] tty tty7: SAK: killed process 7063 (console-kit-dae): by fd#9 [ 4688.524581] tty tty7: SAK: killed process 7064 (console-kit-dae): by fd#9 [ 4688.524587] tty tty7: SAK: killed process 7065 (console-kit-dae): by fd#9 [ 4688.524593] tty tty7: SAK: killed process 7066 (console-kit-dae): by fd#9 [ 4688.524598] tty tty7: SAK: killed process 7067 (console-kit-dae): by fd#9 [ 4688.524603] tty tty7: SAK: killed process 7068 (console-kit-dae): by fd#9 [ 4688.524609] tty tty7: SAK: killed process 7069 (console-kit-dae): by fd#9 [ 4688.524614] tty tty7: SAK: killed process 7070 (console-kit-dae): by fd#9 [ 4688.524620] tty tty7: SAK: killed process 7071 (console-kit-dae): by fd#9 [ 4688.524625] tty tty7: SAK: killed process 7072 (console-kit-dae): by fd#9 [ 4688.524631] tty tty7: SAK: killed process 7073 (console-kit-dae): by fd#9 [ 4688.524636] tty tty7: SAK: killed process 7074 (console-kit-dae): by fd#9 [ 4688.524642] tty tty7: SAK: killed process 7075 (console-kit-dae): by fd#9 [ 4688.524648] tty tty7: SAK: killed process 7076 (console-kit-dae): by fd#9 [ 4688.524653] tty tty7: SAK: killed process 7077 (console-kit-dae): by fd#9 [ 4688.524659] tty tty7: SAK: killed process 7078 (console-kit-dae): by fd#9 [ 4688.524664] tty tty7: SAK: killed process 7079 (console-kit-dae): by fd#9 [ 4688.524670] tty tty7: SAK: killed process 7083 (gmain): by fd#9 [ 4688.524675] tty tty7: SAK: killed process 7085 (gdbus): by fd#9 [ 4688.780517] wlan0: deauthenticating from 5c:f4:ab:10:d2:bb by local choice (Reason: 3=DEAUTH_LEAVING) [ 4698.601308] traps: clock-applet[7813] trap int3 ip:b71e9fc0 sp:bf901050 error:0 in libglib-2.0.so.0.5000.3[b719d000+12a000] [ 4698.676549] traps: mateweather-app[7814] trap int3 ip:b7260fc0 sp:bfcfb9d0 error:0 in libglib-2.0.so.0.5000.3[b7214000+12a000] [ 4700.456620] wlan0: authenticate with 5c:f4:ab:10:d2:bb [ 4700.456710] wlan0: send auth to 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.459606] wlan0: authenticated [ 4700.460449] wlan0: associate with 5c:f4:ab:10:d2:bb (try 1/3) [ 4700.463153] wlan0: RX AssocResp from 5c:f4:ab:10:d2:bb (capab=0x411 status=0 aid=2) [ 4700.465007] wlan0: associated
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I have a similar issue, caused between aaa2faab4ed8 and b170290c2836.
[ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 [ 20.263104] #PF: supervisor write access in kernel mode [ 20.263105] #PF: error_code(0x000b) - reserved bit violation [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 [ 20.263113] Oops: 000b [#1] PREEMPT SMP [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 [ 20.263125] RIP: 0010:__memset+0x24/0x30 [ 20.263128] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 [ 20.263146] Call Trace: [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 [ 20.263161] ? ksys_ioctl+0x77/0x91 [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 [ 20.263166] ? do_syscall_64+0x3d/0xf5 [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class [ 20.263182] CR2: ffffb2b582cc2000 [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- [ 20.263187] RIP: 0010:__memset+0x24/0x30 [ 20.263190] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0
I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA allocations use coherent pools". Reverting 1ee18de92927 resolves the issue.
Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA related.
Hi!
I have a similar issue, caused between aaa2faab4ed8 and b170290c2836.
[ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 [ 20.263104] #PF: supervisor write access in kernel mode [ 20.263105] #PF: error_code(0x000b) - reserved bit violation [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 [ 20.263113] Oops: 000b [#1] PREEMPT SMP [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 [ 20.263125] RIP: 0010:__memset+0x24/0x30 [ 20.263128] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 [ 20.263146] Call Trace: [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 [ 20.263161] ? ksys_ioctl+0x77/0x91 [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 [ 20.263166] ? do_syscall_64+0x3d/0xf5 [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class [ 20.263182] CR2: ffffb2b582cc2000 [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- [ 20.263187] RIP: 0010:__memset+0x24/0x30 [ 20.263190] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0
I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA allocations use coherent pools". Reverting 1ee18de92927 resolves the issue.
Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA related.
Note that newer -next releases seem to behave okay for me. The commit pointed out by siection is really simple:
AFAIK you could verify it is responsible by turning off CONFIG_AMD_MEM_ENCRYPT on latest kernel...
Best regards, Pavel
index 1d6104ea8af0..2bf2222819d3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1520,6 +1520,7 @@ config X86_CPA_STATISTICS config AMD_MEM_ENCRYPT bool "AMD Secure Memory Encryption (SME) support" depends on X86_64 && CPU_SUP_AMD + select DMA_COHERENT_POOL select DYNAMIC_PHYSICAL_MASK select ARCH_USE_MEMREMAP_PROT select ARCH_HAS_FORCE_DMA_UNENCRYPTED
On Sun, 7 Jun 2020, Pavel Machek wrote:
I have a similar issue, caused between aaa2faab4ed8 and b170290c2836.
[ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 [ 20.263104] #PF: supervisor write access in kernel mode [ 20.263105] #PF: error_code(0x000b) - reserved bit violation [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 [ 20.263113] Oops: 000b [#1] PREEMPT SMP [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 [ 20.263125] RIP: 0010:__memset+0x24/0x30 [ 20.263128] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 [ 20.263146] Call Trace: [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 [ 20.263161] ? ksys_ioctl+0x77/0x91 [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 [ 20.263166] ? do_syscall_64+0x3d/0xf5 [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class [ 20.263182] CR2: ffffb2b582cc2000 [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- [ 20.263187] RIP: 0010:__memset+0x24/0x30 [ 20.263190] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0
I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA allocations use coherent pools". Reverting 1ee18de92927 resolves the issue.
Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA related.
Note that newer -next releases seem to behave okay for me. The commit pointed out by siection is really simple:
AFAIK you could verify it is responsible by turning off CONFIG_AMD_MEM_ENCRYPT on latest kernel...
Best regards, Pavel
index 1d6104ea8af0..2bf2222819d3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1520,6 +1520,7 @@ config X86_CPA_STATISTICS config AMD_MEM_ENCRYPT bool "AMD Secure Memory Encryption (SME) support" depends on X86_64 && CPU_SUP_AMD
select DMA_COHERENT_POOL select DYNAMIC_PHYSICAL_MASK select ARCH_USE_MEMREMAP_PROT select ARCH_HAS_FORCE_DMA_UNENCRYPTED
Thanks for the report!
Besides CONFIG_AMD_MEM_ENCRYPT, do you have CONFIG_DMA_DIRECT_REMAP enabled? If so, it may be caused by the virtual address passed to the set_memory_{decrypted,encrypted}() functions.
And I assume you are enabling SME by using mem_encrypt=on on the kernel command line or CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is enabled.
We likely need an atomic pool for devices that support DMA to addresses in sme_me_mask as well. I can test this tomorrow, but wanted to get it out early to see if it helps? --- diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c --- a/kernel/dma/pool.c +++ b/kernel/dma/pool.c @@ -13,6 +13,8 @@ #include <linux/slab.h> #include <linux/workqueue.h>
+static struct gen_pool *atomic_pool __ro_after_init; +static unsigned long pool_size; static struct gen_pool *atomic_pool_dma __ro_after_init; static unsigned long pool_size_dma; static struct gen_pool *atomic_pool_dma32 __ro_after_init; @@ -41,24 +43,37 @@ static void __init dma_atomic_pool_debugfs_init(void) if (IS_ERR_OR_NULL(root)) return;
+ debugfs_create_ulong("pool_size", 0400, root, &pool_size); debugfs_create_ulong("pool_size_dma", 0400, root, &pool_size_dma); debugfs_create_ulong("pool_size_dma32", 0400, root, &pool_size_dma32); debugfs_create_ulong("pool_size_kernel", 0400, root, &pool_size_kernel); }
-static void dma_atomic_pool_size_add(gfp_t gfp, size_t size) +static gfp_t dma_atomic_pool_gfp(void) { - if (gfp & __GFP_DMA) + if (IS_ENABLED(CONFIG_ZONE_DMA)) + return GFP_KERNEL | GFP_DMA; + if (IS_ENABLED(CONFIG_ZONE_DMA32)) + return GFP_KERNEL | GFP_DMA32; + return GFP_KERNEL; +} + +static void dma_atomic_pool_size_add(struct gen_pool *pool, size_t size) +{ + if (pool == atomic_pool) + pool_size += size; + else if (pool == atomic_pool_dma) pool_size_dma += size; - else if (gfp & __GFP_DMA32) + else if (pool == atomic_pool_dma32) pool_size_dma32 += size; - else + else if (pool == atomic_pool_kernel) pool_size_kernel += size; }
static int atomic_pool_expand(struct gen_pool *pool, size_t pool_size, gfp_t gfp) { + bool decrypt = pool != atomic_pool; unsigned int order; struct page *page; void *addr; @@ -94,8 +109,9 @@ static int atomic_pool_expand(struct gen_pool *pool, size_t pool_size, * Memory in the atomic DMA pools must be unencrypted, the pools do not * shrink so no re-encryption occurs in dma_direct_free_pages(). */ - ret = set_memory_decrypted((unsigned long)page_to_virt(page), - 1 << order); + if (decrypt) + ret = set_memory_decrypted((unsigned long)page_to_virt(page), + 1 << order); if (ret) goto remove_mapping; ret = gen_pool_add_virt(pool, (unsigned long)addr, page_to_phys(page), @@ -103,12 +119,13 @@ static int atomic_pool_expand(struct gen_pool *pool, size_t pool_size, if (ret) goto encrypt_mapping;
- dma_atomic_pool_size_add(gfp, pool_size); + dma_atomic_pool_size_add(pool, pool_size); return 0;
encrypt_mapping: - ret = set_memory_encrypted((unsigned long)page_to_virt(page), - 1 << order); + if (decrypt) + ret = set_memory_encrypted((unsigned long)page_to_virt(page), + 1 << order); if (WARN_ON_ONCE(ret)) { /* Decrypt succeeded but encrypt failed, purposely leak */ goto out; @@ -132,6 +149,7 @@ static void atomic_pool_resize(struct gen_pool *pool, gfp_t gfp)
static void atomic_pool_work_fn(struct work_struct *work) { + atomic_pool_resize(atomic_pool, dma_atomic_pool_gfp()); if (IS_ENABLED(CONFIG_ZONE_DMA)) atomic_pool_resize(atomic_pool_dma, GFP_KERNEL | GFP_DMA); @@ -182,6 +200,10 @@ static int __init dma_atomic_pool_init(void) } INIT_WORK(&atomic_pool_work, atomic_pool_work_fn);
+ atomic_pool = __dma_atomic_pool_init(atomic_pool_size, + dma_atomic_pool_gfp()); + if (!atomic_pool) + ret = -ENOMEM; atomic_pool_kernel = __dma_atomic_pool_init(atomic_pool_size, GFP_KERNEL); if (!atomic_pool_kernel) @@ -209,6 +231,9 @@ static inline struct gen_pool *dev_to_pool(struct device *dev) u64 phys_mask; gfp_t gfp;
+ if (!force_dma_unencrypted(dev)) + return atomic_pool; + gfp = dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask, &phys_mask); if (IS_ENABLED(CONFIG_ZONE_DMA) && gfp == GFP_DMA)
Excerpts from David Rientjes's message of June 7, 2020 3:41 pm:
On Sun, 7 Jun 2020, Pavel Machek wrote:
I have a similar issue, caused between aaa2faab4ed8 and b170290c2836.
[ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 [ 20.263104] #PF: supervisor write access in kernel mode [ 20.263105] #PF: error_code(0x000b) - reserved bit violation [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 [ 20.263113] Oops: 000b [#1] PREEMPT SMP [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 [ 20.263125] RIP: 0010:__memset+0x24/0x30 [ 20.263128] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 [ 20.263146] Call Trace: [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 [ 20.263161] ? ksys_ioctl+0x77/0x91 [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 [ 20.263166] ? do_syscall_64+0x3d/0xf5 [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class [ 20.263182] CR2: ffffb2b582cc2000 [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- [ 20.263187] RIP: 0010:__memset+0x24/0x30 [ 20.263190] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0
I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA allocations use coherent pools". Reverting 1ee18de92927 resolves the issue.
Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA related.
Note that newer -next releases seem to behave okay for me. The commit pointed out by siection is really simple:
AFAIK you could verify it is responsible by turning off CONFIG_AMD_MEM_ENCRYPT on latest kernel...
Best regards, Pavel
index 1d6104ea8af0..2bf2222819d3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1520,6 +1520,7 @@ config X86_CPA_STATISTICS config AMD_MEM_ENCRYPT bool "AMD Secure Memory Encryption (SME) support" depends on X86_64 && CPU_SUP_AMD
select DMA_COHERENT_POOL select DYNAMIC_PHYSICAL_MASK select ARCH_USE_MEMREMAP_PROT select ARCH_HAS_FORCE_DMA_UNENCRYPTEDThanks for the report!
Besides CONFIG_AMD_MEM_ENCRYPT, do you have CONFIG_DMA_DIRECT_REMAP enabled? If so, it may be caused by the virtual address passed to the set_memory_{decrypted,encrypted}() functions.
And I assume you are enabling SME by using mem_encrypt=on on the kernel command line or CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is enabled.
We likely need an atomic pool for devices that support DMA to addresses in sme_me_mask as well. I can test this tomorrow, but wanted to get it out early to see if it helps?
This patch doesn't seem to help. I have the same problem (kernel page fault, __memset, snd_pcm_hw_params...).
I don't have CONFIG_DMA_DIRECT_REMAP enabled, and AFAICT it doesn't seem to be selectable currently on x86, unless there are some patches floating around for that.
On Sun, 7 Jun 2020, Alex Xu (Hello71) wrote:
On Sun, 7 Jun 2020, Pavel Machek wrote:
I have a similar issue, caused between aaa2faab4ed8 and b170290c2836.
[ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 [ 20.263104] #PF: supervisor write access in kernel mode [ 20.263105] #PF: error_code(0x000b) - reserved bit violation [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 [ 20.263113] Oops: 000b [#1] PREEMPT SMP [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 [ 20.263125] RIP: 0010:__memset+0x24/0x30 [ 20.263128] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 [ 20.263146] Call Trace: [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 [ 20.263161] ? ksys_ioctl+0x77/0x91 [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 [ 20.263166] ? do_syscall_64+0x3d/0xf5 [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class [ 20.263182] CR2: ffffb2b582cc2000 [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- [ 20.263187] RIP: 0010:__memset+0x24/0x30 [ 20.263190] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0
I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA allocations use coherent pools". Reverting 1ee18de92927 resolves the issue.
Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA related.
Note that newer -next releases seem to behave okay for me. The commit pointed out by siection is really simple:
AFAIK you could verify it is responsible by turning off CONFIG_AMD_MEM_ENCRYPT on latest kernel...
Best regards, Pavel
index 1d6104ea8af0..2bf2222819d3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1520,6 +1520,7 @@ config X86_CPA_STATISTICS config AMD_MEM_ENCRYPT bool "AMD Secure Memory Encryption (SME) support" depends on X86_64 && CPU_SUP_AMD
select DMA_COHERENT_POOL select DYNAMIC_PHYSICAL_MASK select ARCH_USE_MEMREMAP_PROT select ARCH_HAS_FORCE_DMA_UNENCRYPTEDThanks for the report!
Besides CONFIG_AMD_MEM_ENCRYPT, do you have CONFIG_DMA_DIRECT_REMAP enabled? If so, it may be caused by the virtual address passed to the set_memory_{decrypted,encrypted}() functions.
And I assume you are enabling SME by using mem_encrypt=on on the kernel command line or CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is enabled.
We likely need an atomic pool for devices that support DMA to addresses in sme_me_mask as well. I can test this tomorrow, but wanted to get it out early to see if it helps?
This patch doesn't seem to help. I have the same problem (kernel page fault, __memset, snd_pcm_hw_params...).
I don't have CONFIG_DMA_DIRECT_REMAP enabled, and AFAICT it doesn't seem to be selectable currently on x86, unless there are some patches floating around for that.
Thanks for trying it out, Alex. Would you mind sending your .config and command line? I assume either mem_encrypt=on or CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is enabled.
Could you also give this a try?
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -99,10 +99,11 @@ static inline bool dma_should_alloc_from_pool(struct device *dev, gfp_t gfp, static inline bool dma_should_free_from_pool(struct device *dev, unsigned long attrs) { - if (IS_ENABLED(CONFIG_DMA_COHERENT_POOL)) + if (!IS_ENABLED(CONFIG_DMA_COHERENT_POOL)) + return false; + if (force_dma_unencrypted(dev)) return true; - if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) && - !force_dma_unencrypted(dev)) + if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) return false; if (IS_ENABLED(CONFIG_DMA_DIRECT_REMAP)) return true;
Excerpts from David Rientjes's message of June 7, 2020 8:57 pm:
Thanks for trying it out, Alex. Would you mind sending your .config and command line? I assume either mem_encrypt=on or CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is enabled.
Could you also give this a try?
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -99,10 +99,11 @@ static inline bool dma_should_alloc_from_pool(struct device *dev, gfp_t gfp, static inline bool dma_should_free_from_pool(struct device *dev, unsigned long attrs) {
- if (IS_ENABLED(CONFIG_DMA_COHERENT_POOL))
- if (!IS_ENABLED(CONFIG_DMA_COHERENT_POOL))
return false;- if (force_dma_unencrypted(dev)) return true;
- if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) &&
!force_dma_unencrypted(dev))
- if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) return false; if (IS_ENABLED(CONFIG_DMA_DIRECT_REMAP)) return true;
This patch doesn't work for me either. It has since occurred to me that while I do have CONFIG_AMD_MEM_ENCYRPT=y, I have CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=n, because it was broken with amdgpu (unfortunately a downgrade from radeon in this respect). Tried it again just now and it looks like it's now able to enable KMS, but all it displays is serious-looking errors.
Sorry for not mentioning that earlier. I'll send you my .config and command line off-list.
Thanks, Alex.
Can you do a listing using gdb where this happens?
gdb vmlinux
l *(snd_pcm_hw_params+0x3f3)
?
On Sun, Jun 07, 2020 at 11:58:21AM -0400, Alex Xu (Hello71) wrote:
I have a similar issue, caused between aaa2faab4ed8 and b170290c2836.
[ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 [ 20.263104] #PF: supervisor write access in kernel mode [ 20.263105] #PF: error_code(0x000b) - reserved bit violation [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 [ 20.263113] Oops: 000b [#1] PREEMPT SMP [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 [ 20.263125] RIP: 0010:__memset+0x24/0x30 [ 20.263128] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 [ 20.263146] Call Trace: [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 [ 20.263161] ? ksys_ioctl+0x77/0x91 [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 [ 20.263166] ? do_syscall_64+0x3d/0xf5 [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class [ 20.263182] CR2: ffffb2b582cc2000 [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- [ 20.263187] RIP: 0010:__memset+0x24/0x30 [ 20.263190] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0
I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA allocations use coherent pools". Reverting 1ee18de92927 resolves the issue.
Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA related.
---end quoted text---
Excerpts from Christoph Hellwig's message of June 8, 2020 2:19 am:
Can you do a listing using gdb where this happens?
gdb vmlinux
l *(snd_pcm_hw_params+0x3f3)
?
(gdb) l *(snd_pcm_hw_params+0x3f3) 0xffffffff817efc85 is in snd_pcm_hw_params (.../linux/sound/core/pcm_native.c:749). 744 while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size) 745 runtime->boundary *= 2; 746 747 /* clear the buffer for avoiding possible kernel info leaks */ 748 if (runtime->dma_area && !substream->ops->copy_user) 749 memset(runtime->dma_area, 0, runtime->dma_bytes); 750 751 snd_pcm_timer_resolution_change(substream); 752 snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP); 753
On Mon, 8 Jun 2020, Alex Xu (Hello71) wrote:
Excerpts from Christoph Hellwig's message of June 8, 2020 2:19 am:
Can you do a listing using gdb where this happens?
gdb vmlinux
l *(snd_pcm_hw_params+0x3f3)
?
(gdb) l *(snd_pcm_hw_params+0x3f3) 0xffffffff817efc85 is in snd_pcm_hw_params (.../linux/sound/core/pcm_native.c:749). 744 while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size) 745 runtime->boundary *= 2; 746 747 /* clear the buffer for avoiding possible kernel info leaks */ 748 if (runtime->dma_area && !substream->ops->copy_user) 749 memset(runtime->dma_area, 0, runtime->dma_bytes); 750 751 snd_pcm_timer_resolution_change(substream); 752 snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP); 753
Working theory is that CONFIG_DMA_NONCOHERENT_MMAP getting set is causing the error_code in the page fault path. Debugging with Alex off-thread we found that dma_{alloc,free}_from_pool() are not getting called from the new code in dma_direct_{alloc,free}_pages() and he has not enabled mem_encrypt.
So the issue is related to setting CONFIG_DMA_COHERENT_POOL, and not anything else related to AMD SME. He has a patch to try out, but I wanted to update the thread in case there are other ideas to try other than selecting CONFIG_DMA_NONCOHERENT_MMAP only when CONFIG_DMA_REMAP is set (and not CONFIG_DMA_COHERENT_POOL).
On Mon, Jun 08, 2020 at 07:31:47PM -0700, David Rientjes wrote:
On Mon, 8 Jun 2020, Alex Xu (Hello71) wrote:
Excerpts from Christoph Hellwig's message of June 8, 2020 2:19 am:
Can you do a listing using gdb where this happens?
gdb vmlinux
l *(snd_pcm_hw_params+0x3f3)
?
(gdb) l *(snd_pcm_hw_params+0x3f3) 0xffffffff817efc85 is in snd_pcm_hw_params (.../linux/sound/core/pcm_native.c:749). 744 while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size) 745 runtime->boundary *= 2; 746 747 /* clear the buffer for avoiding possible kernel info leaks */ 748 if (runtime->dma_area && !substream->ops->copy_user) 749 memset(runtime->dma_area, 0, runtime->dma_bytes); 750 751 snd_pcm_timer_resolution_change(substream); 752 snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP); 753
Working theory is that CONFIG_DMA_NONCOHERENT_MMAP getting set is causing the error_code in the page fault path. Debugging with Alex off-thread we found that dma_{alloc,free}_from_pool() are not getting called from the new code in dma_direct_{alloc,free}_pages() and he has not enabled mem_encrypt.
While DMA_COHERENT_POOL absolutely should not select DMA_NONCOHERENT_MMAP (and you should send your patch either way), I don't think it is going to make a difference here, as DMA_NONCOHERENT_MMAP just means we allows mmaps even for non-coherent devices, and we do not support non-coherent devices on x86.
From the disassembly it seems like a vmalloc allocation is NULL, which
seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
On Tue, 09 Jun 2020 07:43:06 +0200, Christoph Hellwig wrote:
On Mon, Jun 08, 2020 at 07:31:47PM -0700, David Rientjes wrote:
On Mon, 8 Jun 2020, Alex Xu (Hello71) wrote:
Excerpts from Christoph Hellwig's message of June 8, 2020 2:19 am:
Can you do a listing using gdb where this happens?
gdb vmlinux
l *(snd_pcm_hw_params+0x3f3)
?
(gdb) l *(snd_pcm_hw_params+0x3f3) 0xffffffff817efc85 is in snd_pcm_hw_params (.../linux/sound/core/pcm_native.c:749). 744 while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size) 745 runtime->boundary *= 2; 746 747 /* clear the buffer for avoiding possible kernel info leaks */ 748 if (runtime->dma_area && !substream->ops->copy_user) 749 memset(runtime->dma_area, 0, runtime->dma_bytes); 750 751 snd_pcm_timer_resolution_change(substream); 752 snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP); 753
Working theory is that CONFIG_DMA_NONCOHERENT_MMAP getting set is causing the error_code in the page fault path. Debugging with Alex off-thread we found that dma_{alloc,free}_from_pool() are not getting called from the new code in dma_direct_{alloc,free}_pages() and he has not enabled mem_encrypt.
While DMA_COHERENT_POOL absolutely should not select DMA_NONCOHERENT_MMAP (and you should send your patch either way), I don't think it is going to make a difference here, as DMA_NONCOHERENT_MMAP just means we allows mmaps even for non-coherent devices, and we do not support non-coherent devices on x86.
From the disassembly it seems like a vmalloc allocation is NULL, which
seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
It's not clear which sound device being affected, but if it's HD-audio on x86, runtime->dma_area points to a vmapped buffer from SG-pages allocated by dma_alloc_coherent().
OTOH, if it's a USB-audio, runtime->dma_area is a buffer by vmalloc().
Takashi
On Tue, Jun 09, 2020 at 10:05:26AM +0200, Takashi Iwai wrote:
From the disassembly it seems like a vmalloc allocation is NULL, which
seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
It's not clear which sound device being affected, but if it's HD-audio on x86, runtime->dma_area points to a vmapped buffer from SG-pages allocated by dma_alloc_coherent().
OTOH, if it's a USB-audio, runtime->dma_area is a buffer by vmalloc().
Err, you can't just vmap a buffer returned from dma_alloc_coherent, dma_alloc_coherent returns values are opaque and can't be used for virt_to_page. Whatever that code did has already been broken per the DMA API contract and on many architectures and just happend to work on x86 by accident.
On Tue, 09 Jun 2020 10:43:05 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 10:05:26AM +0200, Takashi Iwai wrote:
From the disassembly it seems like a vmalloc allocation is NULL, which
seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
It's not clear which sound device being affected, but if it's HD-audio on x86, runtime->dma_area points to a vmapped buffer from SG-pages allocated by dma_alloc_coherent().
OTOH, if it's a USB-audio, runtime->dma_area is a buffer by vmalloc().
Err, you can't just vmap a buffer returned from dma_alloc_coherent, dma_alloc_coherent returns values are opaque and can't be used for virt_to_page. Whatever that code did has already been broken per the DMA API contract and on many architectures and just happend to work on x86 by accident.
Hmm, that's bad.
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
thanks,
Takashi
On Tue, Jun 09, 2020 at 11:09:14AM +0200, Takashi Iwai wrote:
On Tue, 09 Jun 2020 10:43:05 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 10:05:26AM +0200, Takashi Iwai wrote:
From the disassembly it seems like a vmalloc allocation is NULL, which
seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
It's not clear which sound device being affected, but if it's HD-audio on x86, runtime->dma_area points to a vmapped buffer from SG-pages allocated by dma_alloc_coherent().
OTOH, if it's a USB-audio, runtime->dma_area is a buffer by vmalloc().
Err, you can't just vmap a buffer returned from dma_alloc_coherent, dma_alloc_coherent returns values are opaque and can't be used for virt_to_page. Whatever that code did has already been broken per the DMA API contract and on many architectures and just happend to work on x86 by accident.
Hmm, that's bad.
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
On Tue, 09 Jun 2020 11:17:27 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 11:09:14AM +0200, Takashi Iwai wrote:
On Tue, 09 Jun 2020 10:43:05 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 10:05:26AM +0200, Takashi Iwai wrote:
From the disassembly it seems like a vmalloc allocation is NULL, which
seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
It's not clear which sound device being affected, but if it's HD-audio on x86, runtime->dma_area points to a vmapped buffer from SG-pages allocated by dma_alloc_coherent().
OTOH, if it's a USB-audio, runtime->dma_area is a buffer by vmalloc().
Err, you can't just vmap a buffer returned from dma_alloc_coherent, dma_alloc_coherent returns values are opaque and can't be used for virt_to_page. Whatever that code did has already been broken per the DMA API contract and on many architectures and just happend to work on x86 by accident.
Hmm, that's bad.
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
And that's the missing piece right now... :-<
Takashi
On Tue, 09 Jun 2020 11:31:20 +0200, Takashi Iwai wrote:
On Tue, 09 Jun 2020 11:17:27 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 11:09:14AM +0200, Takashi Iwai wrote:
On Tue, 09 Jun 2020 10:43:05 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 10:05:26AM +0200, Takashi Iwai wrote:
>From the disassembly it seems like a vmalloc allocation is NULL, which seems really weird as this patch shouldn't make a difference for them, and I also only see a single places that allocates the field, and that checks for an allocation failure. But the sound code is a little hard to unwind sometimes.
It's not clear which sound device being affected, but if it's HD-audio on x86, runtime->dma_area points to a vmapped buffer from SG-pages allocated by dma_alloc_coherent().
OTOH, if it's a USB-audio, runtime->dma_area is a buffer by vmalloc().
Err, you can't just vmap a buffer returned from dma_alloc_coherent, dma_alloc_coherent returns values are opaque and can't be used for virt_to_page. Whatever that code did has already been broken per the DMA API contract and on many architectures and just happend to work on x86 by accident.
Hmm, that's bad.
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
And that's the missing piece right now... :-<
BTW, this kind of usage is not specific to sound, but also V4L also does vmap() over SG pages from dma_alloc_coherent(). It seems done only on selected devices, though.
Takashi
On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote:
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
And that's the missing piece right now... :-<
Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess?
On Tue, 09 Jun 2020 13:31:23 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote:
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
And that's the missing piece right now... :-<
Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess?
Found in sound/core/sgbuf.c. It's specific to x86. Also, for V4L, drivers/media/v4l2-core/videobuf-dma-sg.c.
thanks,
Takashi
On Tue, Jun 09, 2020 at 01:38:46PM +0200, Takashi Iwai wrote:
On Tue, 09 Jun 2020 13:31:23 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote:
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
And that's the missing piece right now... :-<
Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess?
Found in sound/core/sgbuf.c. It's specific to x86.
So it looks like we could just turn off CONFIG_SND_DMA_SGBUF and be done with it? After all this works on other architectures just fine..
On Tue, 09 Jun 2020 13:40:59 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 01:38:46PM +0200, Takashi Iwai wrote:
On Tue, 09 Jun 2020 13:31:23 +0200, Christoph Hellwig wrote:
On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote:
How would be a proper way to get the virtually mapped SG-buffer pages with coherent memory? (Also allowing user-space mmap, too)
dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really have a good way for kernel space mappings.
And that's the missing piece right now... :-<
Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess?
Found in sound/core/sgbuf.c. It's specific to x86.
So it looks like we could just turn off CONFIG_SND_DMA_SGBUF and be done with it? After all this works on other architectures just fine..
Yes, for the sound stuff, something below should make things working. But it means that we'll lose the SG-buffer allocation and the allocation of large buffers might fail on some machines.
Takashi
--- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -192,6 +192,6 @@ config SND_VMASTER
config SND_DMA_SGBUF def_bool y - depends on X86 + depends on X86 && BROKEN
source "sound/core/seq/Kconfig"
On Tue, Jun 09, 2020 at 01:45:34PM +0200, Takashi Iwai wrote:
Yes, for the sound stuff, something below should make things working. But it means that we'll lose the SG-buffer allocation and the allocation of large buffers might fail on some machines.
We crossed lines there. In general due to better memory compaction and CMA we have better chances to get larger contiguous allocations these days, so this might not be too much of an issue in practice.
Dne 09. 06. 20 v 13:49 Christoph Hellwig napsal(a):
On Tue, Jun 09, 2020 at 01:45:34PM +0200, Takashi Iwai wrote:
Yes, for the sound stuff, something below should make things working. But it means that we'll lose the SG-buffer allocation and the allocation of large buffers might fail on some machines.
We crossed lines there. In general due to better memory compaction and CMA we have better chances to get larger contiguous allocations these days, so this might not be too much of an issue in practice.
But turning off the SG DMA scheme seems like a step back. Would be possible to fix this kind of memory mapping?
Jaroslav
On Tue, 9 Jun 2020, Christoph Hellwig wrote:
Working theory is that CONFIG_DMA_NONCOHERENT_MMAP getting set is causing the error_code in the page fault path. Debugging with Alex off-thread we found that dma_{alloc,free}_from_pool() are not getting called from the new code in dma_direct_{alloc,free}_pages() and he has not enabled mem_encrypt.
While DMA_COHERENT_POOL absolutely should not select DMA_NONCOHERENT_MMAP (and you should send your patch either way), I don't think it is going to make a difference here, as DMA_NONCOHERENT_MMAP just means we allows mmaps even for non-coherent devices, and we do not support non-coherent devices on x86.
We haven't heard yet whether the disabling of DMA_NONCOHERENT_MMAP fixes Aaron's BUG(), and the patch included some other debugging hints that will be printed out in case it didn't, but I'll share what we figured out:
In 5.7, his config didn't have DMA_DIRECT_REMAP or DMA_REMAP (it did have GENERIC_ALLOCATOR already). AMD_MEM_ENCRYPT is set.
In Linus HEAD, AMD_MEM_ENCRYPT now selects DMA_COHERENT_POOL so it sets the two aforementioned options.
We also figured out that dma_should_alloc_from_pool() is always false up until the BUG(). So what else changed? Only the selection of DMA_REMAP and DMA_NONCOHERENT_MMAP.
The comment in the Kconfig about setting "an uncached bit in the pagetables" led me to believe it may be related to the splat he's seeing (reserved bit violation). So I suggested dropping DMA_NONCOHERENT_MMAP from his Kconfig for testing purposes.
If this option should not implicitly be set for DMA_COHERENT_POOL, then I assume we need yet another Kconfig option since DMA_REMAP selected it before and DMA_COHERENT_POOL selects DMA_REMAP :)
So do we want a DMA_REMAP_BUT_NO_DMA_NONCOHERENT_MMAP? Decouple DMA_REMAP from DMA_NONCOHERENT_MMAP and select the latter wherever the former was set (but not DMA_COHERENT_POOL)? Something else?
On Tue, Jun 09, 2020 at 10:26:45PM -0700, David Rientjes wrote:
If this option should not implicitly be set for DMA_COHERENT_POOL, then I assume we need yet another Kconfig option since DMA_REMAP selected it before and DMA_COHERENT_POOL selects DMA_REMAP :)
Yes, but what do we actually need DMA_REMAP for just for the coherent pool? We shuldn't really remap anything for AMD-SEV. Sorry for not noticing this earlier.
Alex, can you try this patch?
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index d4554f376160a9..10b06e575a7fc5 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -192,6 +192,6 @@ config SND_VMASTER
config SND_DMA_SGBUF def_bool y - depends on X86 + depends on BROKEN
source "sound/core/seq/Kconfig"
On Tue, 09 Jun 2020 13:47:33 +0200, Christoph Hellwig wrote:
Alex, can you try this patch?
Also could you check whether just papering over the memset() call alone avoids the crash like below? For PulseAudio and dmix/dsnoop, it's the only code path that accesses the vmapped buffer, I believe.
If this works more or less, I'll cook a more comprehensive fix.
thanks,
Takashi
--- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -754,9 +754,11 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size) runtime->boundary *= 2;
+#if 0 /* clear the buffer for avoiding possible kernel info leaks */ if (runtime->dma_area && !substream->ops->copy_user) memset(runtime->dma_area, 0, runtime->dma_bytes); +#endif
snd_pcm_timer_resolution_change(substream); snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
Excerpts from Christoph Hellwig's message of June 9, 2020 7:47 am:
Alex, can you try this patch?
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index d4554f376160a9..10b06e575a7fc5 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -192,6 +192,6 @@ config SND_VMASTER
config SND_DMA_SGBUF def_bool y
- depends on X86
- depends on BROKEN
source "sound/core/seq/Kconfig"
Sorry, this patch doesn't work for me with SME off using abfbb29297c2. David's newest submitted patch works for me, which I already replied to separately.
Thanks, Alex.
participants (6)
-
Alex Xu (Hello71) -
Christoph Hellwig -
David Rientjes -
Jaroslav Kysela -
Pavel Machek -
Takashi Iwai