At Tue, 16 Jul 2013 15:11:51 +0930, Rusty Russell wrote:
Philipp Matthias Hahn pmhahn@pmhahn.de writes:
Hello,
My x86_64 systems has some trouble loading some ALSA snd-* modules since the upgrade to 3.10.[01]: Several automatic modprobe calls hang, but loading snd-intel-hda and snd-audio-usb by hand still works.
Not a known problem to me, at least. Perhaps it's a dep loop somehow.
I remember that someone reported it being Debian specific snd-seq-oss loading stuff.
... 1071 ? S 0:00 sh -c /sbin/modprobe --ignore-install snd && { /sbin/modprobe --quiet snd 1080 ? D 0:00 _ /sbin/modprobe --quiet snd-seq
This was first, and it's waiting. Which means it must be doing something weird, because snd_seq_oss is loading now:
snd_seq_oss 33717 1 - Loading 0xffffffffa041b000
Perhaps in the tangle of modprobe install commands somewhere this gets invoked?
Likely, but I wonder what triggered a bug suddenly on 3.10. There is absolutely no change in sound/core/seq/*, and through a quick look, I couldn't find any suspicious change in kernel/module.c that may lead to this problem between 3.9 and 3.10.
Philipp, can you get a sysrq-T trace while the stall?
thanks,
Takashi
# ps axf 460 ? S 0:00 _ [kworker/u8:3] 1087 ? S 0:00 | _ [kworker/u8:3] 1092 ? S 0:00 | _ /sbin/modprobe -q -- snd-seq-client-14
On my systems, that's snd-seq-dummy, which depends on snd_seq. Which, in fact, is already loaded.
Lucas, any clues?
Full quote below.
Cheers, Rusty.
Philipp Matthias Hahn pmhahn@pmhahn.de writes:
Hello,
My x86_64 systems has some trouble loading some ALSA snd-* modules since the upgrade to 3.10.[01]: Several automatic modprobe calls hang, but loading snd-intel-hda and snd-audio-usb by hand still works.
# ps axf 460 ? S 0:00 _ [kworker/u8:3] 1087 ? S 0:00 | _ [kworker/u8:3] 1092 ? S 0:00 | _ /sbin/modprobe -q -- snd-seq-client-14 ... 1071 ? S 0:00 sh -c /sbin/modprobe --ignore-install snd && { /sbin/modprobe --quiet snd 1080 ? D 0:00 _ /sbin/modprobe --quiet snd-seq 1115 ? S 0:00 sh -c /sbin/modprobe --ignore-install snd-rawmidi && { /sbin/modprobe --q 1154 ? S 0:00 _ /sbin/modprobe --quiet snd-seq-midi 1119 ? S 0:00 sh -c /sbin/modprobe --ignore-install snd-rawmidi && { /sbin/modprobe --q 1148 ? S 0:00 _ /sbin/modprobe --quiet snd-seq-midi
In /var/log/daemon.log I find the following messages: Jul 15 19:58:44 scout udevd[912]: timeout: killing '/sbin/modprobe -b usb:vFC08p0101d0250dc00dsc00dp00ic01isc01ip00in00' [1044] Jul 15 19:58:56 scout udevd[912]: '/sbin/modprobe -b usb:vFC08p0101d0250dc00dsc00dp00ic01isc01ip00in00' [1044] terminated by signal 9 (Killed) Jul 15 19:58:56 scout udevd[919]: timeout: killing '/sbin/modprobe -b pci:v000010DEd0000026Csv00001462sd00007350bc04sc03i00' [1051] Jul 15 19:58:56 scout udevd[914]: timeout: killing '/sbin/modprobe -b usb:vFC08p0101d0250dc00dsc00dp00ic01isc03ip00in01' [1045] Jul 15 19:58:56 scout udevd[919]: '/sbin/modprobe -b pci:v000010DEd0000026Csv00001462sd00007350bc04sc03i00' [1051] terminated by signal 9 (Killed) Jul 15 19:58:56 scout udevd[914]: '/sbin/modprobe -b usb:vFC08p0101d0250dc00dsc00dp00ic01isc03ip00in01' [1045] terminated by signal 9 (Killed)
This is a Debian sid system # modprobe -V kmod version 9
# echo t >/proc/sysrq-trigger produces too much output to include the modprobe processes. I already stopped most processes, but that is not enough.
# cat /proc/1092/syscall 175 0x7effcad92000 0xafe8 0x7effca9c2f88 0x7effca6ea3aa 0x0 0x0 0x7fff3e3de648 0x7effca6eef8a
# cat /proc/1080/syscall 175 0x7fe01b25e000 0xafe8 0x7fe01ae8ef88 0x7fe01abb63aa 0x3 0x0 0x7fffba8cc748 0x7fe01abbaf8a
# cat /proc/1154/syscall 175 0x7fc157a7b000 0xafe8 0x7fc1576abf88 0x7fc1573d33aa 0x3 0x0 0x7fff05809e58 0x7fc1573d7f8a
# cat /proc/1148/syscall 175 0x7fc7159d5000 0xafe8 0x7fc715605f88 0x7fc71532d3aa 0x3 0x0 0x7fff47a1f3c8 0x7fc715331f8a
Is this a know bug or has someone seen similar problems?
# cat /proc/modules ip6table_filter 1575 0 - Live 0xffffffffa0893000 ip6_tables 13784 1 ip6table_filter, Live 0xffffffffa088b000 ebtable_nat 1887 0 - Live 0xffffffffa0887000 ebtables 19917 1 ebtable_nat, Live 0xffffffffa087e000 snd_usb_audio 124196 0 - Live 0xffffffffa0851000 snd_usbmidi_lib 16982 1 snd_usb_audio, Live 0xffffffffa0848000 rfcomm 28731 10 - Live 0xffffffffa083a000 bnep 9786 2 - Live 0xffffffffa0833000 snd_hda_codec_realtek 37669 1 - Live 0xffffffffa0823000 snd_hda_intel 31432 0 - Live 0xffffffffa0814000 snd_hda_codec 140669 2 snd_hda_codec_realtek,snd_hda_intel, Live 0xffffffffa07e2000 snd_hwdep 5627 2 snd_usb_audio,snd_hda_codec, Live 0xffffffffa07dd000 iptable_filter 1618 1 - Live 0xffffffffa07d9000 xt_owner 1326 1 - Live 0xffffffffa07d5000 ip_tables 13390 1 iptable_filter, Live 0xffffffffa07cd000 x_tables 18433 6 ip6table_filter,ip6_tables,ebtables,iptable_filter,xt_owner,ip_tables, Live 0xffffffffa07c3000 cpufreq_conservative 7015 0 - Live 0xffffffffa07bd000 cpufreq_ondemand 8945 0 - Live 0xffffffffa07b6000 cpufreq_powersave 1010 0 - Live 0xffffffffa07b2000 cpufreq_userspace 2136 0 - Live 0xffffffffa07ae000 binfmt_misc 6479 1 - Live 0xffffffffa07a9000 bridge 74378 0 - Live 0xffffffffa078d000 stp 1908 1 bridge, Live 0xffffffffa0789000 llc 4485 2 bridge,stp, Live 0xffffffffa0784000 deflate 1873 0 - Live 0xffffffffa0780000 ctr 3633 0 - Live 0xffffffffa077c000 twofish_generic 5715 0 - Live 0xffffffffa0777000 twofish_x86_64_3way 19885 0 - Live 0xffffffffa076f000 twofish_x86_64 5503 1 twofish_x86_64_3way, Live 0xffffffffa076a000 twofish_common 13133 3 twofish_generic,twofish_x86_64_3way,twofish_x86_64, Live 0xffffffffa0763000 camellia_generic 18308 0 - Live 0xffffffffa075b000 camellia_x86_64 45885 0 - Live 0xffffffffa074b000 serpent_sse2_x86_64 44963 0 - Live 0xffffffffa073d000 serpent_generic 21243 1 serpent_sse2_x86_64, Live 0xffffffffa0734000 ablk_helper 2284 1 serpent_sse2_x86_64, Live 0xffffffffa0730000 cryptd 7992 1 ablk_helper, Live 0xffffffffa072a000 xts 2958 3 twofish_x86_64_3way,camellia_x86_64,serpent_sse2_x86_64, Live 0xffffffffa0726000 lrw 3584 3 twofish_x86_64_3way,camellia_x86_64,serpent_sse2_x86_64, Live 0xffffffffa0722000 gf128mul 6580 2 xts,lrw, Live 0xffffffffa071d000 glue_helper 4810 3 twofish_x86_64_3way,camellia_x86_64,serpent_sse2_x86_64, Live 0xffffffffa0718000 blowfish_generic 3194 0 - Live 0xffffffffa0714000 blowfish_x86_64 14084 0 - Live 0xffffffffa070d000 blowfish_common 6425 2 blowfish_generic,blowfish_x86_64, Live 0xffffffffa0708000 cast5_generic 10378 0 - Live 0xffffffffa0702000 cast_common 5351 1 cast5_generic, Live 0xffffffffa06fd000 des_generic 16147 0 - Live 0xffffffffa06f6000 cmac 2460 0 - Live 0xffffffffa06f2000 xcbc 2423 0 - Live 0xffffffffa06ee000 rmd160 7552 0 - Live 0xffffffffa06e9000 nfsd 208660 2 - Live 0xffffffffa06a8000 auth_rpcgss 39179 1 nfsd, Live 0xffffffffa0698000 oid_registry 2490 1 auth_rpcgss, Live 0xffffffffa0694000 nfs_acl 2285 1 nfsd, Live 0xffffffffa0690000 sha512_generic 5023 0 - Live 0xffffffffa068b000 nfs 127233 0 - Live 0xffffffffa065b000 lockd 57962 2 nfsd,nfs, Live 0xffffffffa0645000 fscache 34198 1 nfs, Live 0xffffffffa0636000 sha1_ssse3 9266 0 - Live 0xffffffffa0630000 sha1_generic 2064 1 sha1_ssse3, Live 0xffffffffa062c000 sunrpc 185043 6 nfsd,auth_rpcgss,nfs_acl,nfs,lockd, Live 0xffffffffa05ea000 md5 1803 0 - Live 0xffffffffa05e6000 crypto_null 2624 0 - Live 0xffffffffa05e2000 af_key 25880 0 - Live 0xffffffffa05d6000 xfrm_algo 6101 1 af_key, Live 0xffffffffa05d1000 ves1820 5159 1 - Live 0xffffffffa05cc000 btusb 14810 0 - Live 0xffffffffa05bc000 bluetooth 183572 24 rfcomm,bnep,btusb, Live 0xffffffffa054a000 stv0297 6493 1 - Live 0xffffffffa052f000 snd_rawmidi 17913 1 snd_usbmidi_lib, Live 0xffffffffa0525000 snd_pcm_oss 32083 0 - Live 0xffffffffa0518000 snd_mixer_oss 12485 1 snd_pcm_oss, Live 0xffffffffa0510000 snd_pcm 73594 4 snd_usb_audio,snd_hda_intel,snd_hda_codec,snd_pcm_oss, Live 0xffffffffa04f5000 snd_page_alloc 7172 2 snd_hda_intel,snd_pcm, Live 0xffffffffa04f0000 dvb_ttpci 93699 0 - Live 0xffffffffa04d1000 saa7146_vv 26567 1 dvb_ttpci, Live 0xffffffffa04c5000 videobuf_dma_sg 8015 1 saa7146_vv, Live 0xffffffffa04bf000 videobuf_core 15578 2 saa7146_vv,videobuf_dma_sg, Live 0xffffffffa04b7000 v4l2_common 7907 1 saa7146_vv, Live 0xffffffffa04b1000 budget_ci 21012 0 - Live 0xffffffffa04a7000 videodev 97317 2 saa7146_vv,v4l2_common, Live 0xffffffffa0486000 budget_core 7679 1 budget_ci, Live 0xffffffffa0481000 ttpci_eeprom 1985 2 dvb_ttpci,budget_core, Live 0xffffffffa0479000 saa7146 11356 4 dvb_ttpci,saa7146_vv,budget_ci,budget_core, Live 0xffffffffa046b000 rc_core 13478 2 budget_ci, Live 0xffffffffa044a000 dvb_core 68839 3 dvb_ttpci,budget_ci,budget_core, Live 0xffffffffa0431000 snd_seq_oss 33717 1 - Loading 0xffffffffa041b000 snd_seq_midi_event 5740 1 snd_seq_oss, Live 0xffffffffa0416000 snd_seq 44232 2 snd_seq_oss,snd_seq_midi_event, Live 0xffffffffa0404000 snd_seq_device 5560 3 snd_rawmidi,snd_seq_oss,snd_seq, Live 0xffffffffa03ff000 snd_timer 17417 2 snd_pcm,snd_seq, Live 0xffffffffa03f6000 snd 58793 14 snd_usb_audio,snd_usbmidi_lib,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_rawmidi,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_seq,snd_seq_device,snd_timer, Live 0xffffffffa03df000 pcspkr 1926 0 - Live 0xffffffffa03db000 psmouse 52563 0 - Live 0xffffffffa03c6000 serio_raw 4517 0 - Live 0xffffffffa03c1000 soundcore 5811 1 snd, Live 0xffffffffa03b7000 evdev 8465 0 - Live 0xffffffffa039d000 kvm_intel 122108 0 - Live 0xffffffffa0351000 kvm 342589 1 kvm_intel, Live 0xffffffffa0271000 usb_storage 46166 0 - Live 0xffffffffa025c000 fuse 65800 1 - Live 0xffffffffa0243000 ecryptfs 80646 0 - Live 0xffffffffa0227000 cbc 2574 0 - Live 0xffffffffa0223000 sha256_ssse3 16172 2 - Live 0xffffffffa021c000 sha256_generic 9882 1 sha256_ssse3, Live 0xffffffffa0216000 hmac 2673 1 - Live 0xffffffffa0212000 encrypted_keys 9378 1 ecryptfs, Live 0xffffffffa020b000 autofs4 20984 2 - Live 0xffffffffa0200000 ext4 434295 5 - Live 0xffffffffa0173000 crc16 1541 2 bluetooth,ext4, Live 0xffffffffa016f000 jbd2 83146 1 ext4, Live 0xffffffffa0150000 btrfs 682625 1 - Live 0xffffffffa008b000 crc32c 1610 1 - Live 0xffffffffa0087000 libcrc32c 1147 1 btrfs, Live 0xffffffffa0083000 xor 11190 1 btrfs, Live 0xffffffffa007d000 zlib_deflate 18739 2 deflate,btrfs, Live 0xffffffffa0075000 raid6_pq 92000 1 btrfs, Live 0xffffffffa005a000 nbd 8786 0 - Live 0xffffffffa0053000 firewire_ohci 27516 0 - Live 0xffffffffa0048000 firewire_core 49041 1 firewire_ohci, Live 0xffffffffa0035000 crc_itu_t 1565 1 firewire_core, Live 0xffffffffa0031000 forcedeth 50647 0 - Live 0xffffffffa001e000 floppy 53437 0 - Live 0xffffffffa0009000 ohci_hcd 18001 0 - Live 0xffffffffa0000000
BYtE Philipp -- / / (_)__ __ ____ __ Philipp Hahn / /__/ / _ / // /\ / / /____/_/_//_/_,_/ /_/_\ pmhahn@pmhahn.de
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