[alsa-devel] Help with TASCAM US-122

Takashi Iwai tiwai at suse.de
Sun Aug 5 19:07:18 CEST 2018 

On Sun, 05 Aug 2018 06:48:20 +0200,
Joseph Spencer wrote:
> 
> Hello,
> 
> I'm on Fedora 28 (Linux localhost.localdomain 4.17.11-200.fc28.x86_64 #1
> SMP Mon Jul 30 15:21:09 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux), and I'm
> trying to use the TASCAM US-122 Audio/MIDI Interface
> <https://alsa-project.org/main/index.php/Matrix:Vendor-Tascam>.
> 
> It seems as though the alsa-firmware package is able to detect the USB
> device just fine; however, after a few moments my entire system freezes
> (mouse cursor doesn't move etc.).  I'm left to forcefully power off.
> 
> I'm wondering if anyone can point me in the right direction.  I'm
> comfortable with C (haven't done much kernel development), good with shell
> scripts, not so familiar with alsa.  I'd be more than happy to contribute
> to hopefully fix this for others and (of course) myself.
> 
> I had journalctl -f up in a terminal when I plugged in the interface and
> was able to capture the system logs (in the post script of this email).
> Any help would be appreciated.

Well, the kernel stack trace shows the completely irrelevant code path
from the sound driver; it's about i915 graphics, then blow up the
rest.  It might be some memory corruption and its side-effect, but
it's difficult to judge only from the given information.

You may try to enable some more kernel debug options (distros often
provide such kernel packages).  If we are lucky, it may catch
something wrong beforehand.


Takashi

> 
> Thanks,
> Joe Spencer
> 602.777.2307
> 
> P.S.  Here's the relevant system logs of the issue:
> 
> Aug 04 03:13:50 localhost.localdomain kernel: usb 3-1: new full-speed USB
> device number 2 using xhci_hcd
> Aug 04 03:13:50 localhost.localdomain kernel: usb 3-1: New USB device
> found, idVendor=1604, idProduct=8006, bcdDevice= 1.00
> Aug 04 03:13:50 localhost.localdomain kernel: usb 3-1: New USB device
> strings: Mfr=0, Product=0, SerialNumber=0
> Aug 04 03:13:50 localhost.localdomain /lib/udev/tascam_fw[2834]: load
> /usr/share/alsa/firmware/usx2yloader/us122fw.ihx for 1604/8006/100 to
> /dev/bus/usb/003/002
> Aug 04 03:13:50 localhost.localdomain /lib/udev/tascam_fw[2837]: load
> /usr/share/alsa/firmware/usx2yloader/us122fw.ihx for 1604/8006/100 to
> Aug 04 03:13:50 localhost.localdomain kernel: usb 3-1: USB disconnect,
> device number 2
> Aug 04 03:13:52 localhost.localdomain kernel: usb 3-1: new full-speed USB
> device number 3 using xhci_hcd
> Aug 04 03:13:52 localhost.localdomain kernel: usb 3-1: New USB device
> found, idVendor=1604, idProduct=8007, bcdDevice= 0.01
> Aug 04 03:13:52 localhost.localdomain kernel: usb 3-1: New USB device
> strings: Mfr=0, Product=0, SerialNumber=0
> Aug 04 03:13:52 localhost.localdomain /lib/udev/tascam_fpga[2859]: calling
> /usr/bin/usx2yloader for
> Aug 04 03:13:52 localhost.localdomain /lib/udev/tascam_fpga[2861]: leaving
> Aug 04 03:13:52 localhost.localdomain kernel: usbcore: registered new
> interface driver snd-usb-usx2y
> Aug 04 03:13:52 localhost.localdomain /lib/udev/tascam_fpga[2864]: calling
> /usr/bin/usx2yloader for
> *Aug 04 03:13:54 localhost.localdomain /lib/udev/tascam_fpga[2867]: leaving
> (this was the last log entry before my screen froze, the following logs
> were obtained after a reboot with my device disconnected)*
> Aug 04 03:13:58 localhost.localdomain kernel: BUG: unable to handle kernel
> paging request at 00000000178f90ca
> Aug 04 03:13:58 localhost.localdomain kernel: PGD 800000040aa8b067 P4D
> 800000040aa8b067 PUD 4050d8067 PMD 0
> Aug 04 03:13:58 localhost.localdomain kernel: Oops: 0000 [#1] SMP PTI
> Aug 04 03:13:58 localhost.localdomain kernel: Modules linked in:
> snd_seq_midi snd_seq_midi_event snd_usb_usx2y snd_usbmidi_lib snd_rawmidi
> ccm rfcomm fuse vboxnetadp(OE) vboxnetflt(OE) vboxdrv>
> Aug 04 03:13:58 localhost.localdomain kernel:  snd_hwdep snd_seq wmi
> snd_seq_device snd_pcm snd_timer parport_pc parport snd mei_me soundcore
> mei dell_rbtn rfkill lpc_ich shpchp dell_smo8800 p>
> Aug 04 03:13:58 localhost.localdomain kernel: CPU: 1 PID: 1125 Comm: Xorg
> Tainted: G           OE     4.17.11-200.fc28.x86_64 #1
> Aug 04 03:13:58 localhost.localdomain kernel: Hardware name: Dell Inc.
> Latitude E6530/, BIOS A17 08/19/2015
> Aug 04 03:13:58 localhost.localdomain kernel: RIP:
> 0010:__kmalloc_track_caller+0xa2/0x230
> Aug 04 03:13:58 localhost.localdomain kernel: RSP: 0018:ffffb4c7c22bfab8
> EFLAGS: 00010206
> Aug 04 03:13:58 localhost.localdomain kernel: RAX: 0000000000000000 RBX:
> 0000000000000000 RCX: 0000000000000000
> Aug 04 03:13:58 localhost.localdomain kernel: RDX: 0000000000004956 RSI:
> 00000000014000c0 RDI: 0000000000026120
> Aug 04 03:13:58 localhost.localdomain kernel: RBP: 00000000014000c0 R08:
> 00000000178f90ca R09: ffff930a8d803200
> Aug 04 03:13:58 localhost.localdomain kernel: R10: ffff930a860b2c00 R11:
> 0000000000000000 R12: 00000000000000d0
> Aug 04 03:13:58 localhost.localdomain kernel: R13: ffffffffc04a7e80 R14:
> ffff930a8d803200 R15: 00000000178f90ca
> Aug 04 03:13:58 localhost.localdomain kernel: FS:  00007f11c22baac0(0000)
> GS:ffff930a9e280000(0000) knlGS:0000000000000000
> Aug 04 03:13:58 localhost.localdomain kernel: CS:  0010 DS: 0000 ES: 0000
> CR0: 0000000080050033
> Aug 04 03:13:58 localhost.localdomain kernel: CR2: 00000000178f90ca CR3:
> 0000000406ab4004 CR4: 00000000001606e0
> Aug 04 03:13:58 localhost.localdomain kernel: Call Trace:
> Aug 04 03:13:58 localhost.localdomain kernel:  kmemdup+0x17/0x40
> Aug 04 03:13:58 localhost.localdomain kernel:
> intel_plane_duplicate_state+0x20/0x50 [i915]
> Aug 04 03:13:58 localhost.localdomain kernel:
> drm_atomic_get_plane_state+0x6a/0x110 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:
> drm_atomic_helper_disable_plane+0x36/0xc0 [drm_kms_helper]
> Aug 04 03:13:58 localhost.localdomain kernel:
> __setplane_internal+0x1bd/0x260 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:  ? sock_wfree+0x3a/0x60
> Aug 04 03:13:58 localhost.localdomain kernel:  ? unix_destruct_scm+0x80/0xa0
> Aug 04 03:13:58 localhost.localdomain kernel:
> drm_mode_cursor_universal+0x1b7/0x1f0 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:
> drm_mode_cursor_common+0x18b/0x1f0 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:  ?
> drm_mode_setplane+0x230/0x230 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:
> drm_mode_cursor_ioctl+0x4d/0x70 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:  drm_ioctl_kernel+0x5b/0xb0
> [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:  drm_ioctl+0x1b3/0x370 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:  ?
> drm_mode_setplane+0x230/0x230 [drm]
> Aug 04 03:13:58 localhost.localdomain kernel:  ? timerqueue_add+0x52/0x80
> Aug 04 03:13:58 localhost.localdomain kernel:  ?
> selinux_file_ioctl+0x161/0x200
> Aug 04 03:13:58 localhost.localdomain kernel:  do_vfs_ioctl+0xa4/0x610
> Aug 04 03:13:58 localhost.localdomain kernel:  ksys_ioctl+0x60/0x90
> Aug 04 03:13:58 localhost.localdomain kernel:  __x64_sys_ioctl+0x16/0x20
> Aug 04 03:13:58 localhost.localdomain kernel:  do_syscall_64+0x5b/0x160
> Aug 04 03:13:58 localhost.localdomain kernel:
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> Aug 04 03:13:58 localhost.localdomain kernel: RIP: 0033:0x7f11bf53dec7
> Aug 04 03:13:58 localhost.localdomain kernel: RSP: 002b:00007fffa0ee58d8
> EFLAGS: 00003246 ORIG_RAX: 0000000000000010
> Aug 04 03:13:58 localhost.localdomain kernel: RAX: ffffffffffffffda RBX:
> 00000000013cc100 RCX: 00007f11bf53dec7
> Aug 04 03:13:58 localhost.localdomain kernel: RDX: 00007fffa0ee5910 RSI:
> 00000000c01c64a3 RDI: 0000000000000010
> Aug 04 03:13:58 localhost.localdomain kernel: RBP: 00007fffa0ee5910 R08:
> 00007f11c2136000 R09: 0000000000000001
> Aug 04 03:13:58 localhost.localdomain kernel: R10: 0000000000000780 R11:
> 0000000000003246 R12: 00000000c01c64a3
> Aug 04 03:13:58 localhost.localdomain kernel: R13: 0000000000000010 R14:
> 000000000124c0d0 R15: 00000000000001cd
> Aug 04 03:13:58 localhost.localdomain kernel: Code: 50 08 65 4c 03 05 e7 26
> da 5e 49 83 78 10 00 4d 8b 38 0f 84 22 01 00 00 4d 85 ff 0f 84 19 01 00 00
> 45 8b 41 20 49 8b 39 4d 01 f8 <4d> 8b 10 >
> Aug 04 03:13:58 localhost.localdomain kernel: RIP:
> __kmalloc_track_caller+0xa2/0x230 RSP: ffffb4c7c22bfab8
> Aug 04 03:13:58 localhost.localdomain kernel: CR2: 00000000178f90ca
> Aug 04 03:13:58 localhost.localdomain kernel: ---[ end trace
> 59cb442553c1594d ]---
> Aug 04 03:13:59 localhost.localdomain abrt-dump-journal-oops[1205]:
> abrt-dump-journal-oops: Found oopses: 1
> Aug 04 03:13:59 localhost.localdomain abrt-dump-journal-oops[1205]:
> abrt-dump-journal-oops: Creating problem directories
> Aug 04 03:13:59 localhost.localdomain kernel: BUG: unable to handle kernel
> paging request at 00000000178f90ca
> Aug 04 03:13:59 localhost.localdomain kernel: PGD 0 P4D 0
> Aug 04 03:13:59 localhost.localdomain kernel: Oops: 0000 [#2] SMP PTI
> Aug 04 03:13:59 localhost.localdomain kernel: Modules linked in:
> snd_seq_midi snd_seq_midi_event snd_usb_usx2y snd_usbmidi_lib snd_rawmidi
> ccm rfcomm fuse vboxnetadp(OE) vboxnetflt(OE) vboxdrv>
> Aug 04 03:13:59 localhost.localdomain kernel:  snd_hwdep snd_seq wmi
> snd_seq_device snd_pcm snd_timer parport_pc parport snd mei_me soundcore
> mei dell_rbtn rfkill lpc_ich shpchp dell_smo8800 p>
> Aug 04 03:13:59 localhost.localdomain kernel: CPU: 1 PID: 1205 Comm:
> abrt-dump-journ Tainted: G      D    OE     4.17.11-200.fc28.x86_64 #1
> Aug 04 03:13:59 localhost.localdomain kernel: Hardware name: Dell Inc.
> Latitude E6530/, BIOS A17 08/19/2015
> Aug 04 03:13:59 localhost.localdomain kernel: RIP:
> 0010:kmem_cache_alloc_trace+0x8d/0x1d0
> Aug 04 03:13:59 localhost.localdomain kernel: RSP: 0018:ffffb4c7c25dfc60
> EFLAGS: 00010206
> Aug 04 03:13:59 localhost.localdomain kernel: RAX: 0000000000000000 RBX:
> 00000000178f90ca RCX: 0000000000000002
> Aug 04 03:13:59 localhost.localdomain kernel: RDX: 0000000000004956 RSI:
> 00000000014080c0 RDI: 0000000000026120
> Aug 04 03:13:59 localhost.localdomain kernel: RBP: ffff930a8d803200 R08:
> ffff930a9e2a6120 R09: 0000000000000000
> Aug 04 03:13:59 localhost.localdomain kernel: R10: 0000000000000000 R11:
> e7825477348aeba9 R12: 00000000014080c0
> Aug 04 03:13:59 localhost.localdomain kernel: R13: 00000000000000f8 R14:
> ffff930a8d803200 R15: 00000000178f90ca
> Aug 04 03:13:59 localhost.localdomain kernel: FS:  00007f0fd1a99ac0(0000)
> GS:ffff930a9e280000(0000) knlGS:0000000000000000
> Aug 04 03:13:59 localhost.localdomain kernel: CS:  0010 DS: 0000 ES: 0000
> CR0: 0000000080050033
> Aug 04 03:13:59 localhost.localdomain kernel: CR2: 00000000178f90ca CR3:
> 00000004082c2006 CR4: 00000000001606e0
> Aug 04 03:13:59 localhost.localdomain kernel: Call Trace:
> Aug 04 03:13:59 localhost.localdomain kernel:  ? full_proxy_open+0xc0/0x1d0
> Aug 04 03:13:59 localhost.localdomain kernel:  full_proxy_open+0xc0/0x1d0
> Aug 04 03:13:59 localhost.localdomain kernel:  ?
> debugfs_create_devm_seqfile+0x80/0x80
> Aug 04 03:13:59 localhost.localdomain kernel:  do_dentry_open+0x1af/0x2e0
> Aug 04 03:13:59 localhost.localdomain kernel:  path_openat+0x46e/0x15f0
> Aug 04 03:13:59 localhost.localdomain kernel:  ? 0xffffffffc02a8000
> Aug 04 03:13:59 localhost.localdomain kernel:  ? seq_puts+0x3a/0x50
> Aug 04 03:13:59 localhost.localdomain kernel:  ? __kmalloc_node+0x208/0x2d0
> Aug 04 03:13:59 localhost.localdomain kernel:  ? seq_read+0x2de/0x460
> Aug 04 03:13:59 localhost.localdomain kernel:  do_filp_open+0x93/0x100
> Aug 04 03:13:59 localhost.localdomain kernel:  ?
> __check_object_size+0x9c/0x171
> Aug 04 03:13:59 localhost.localdomain kernel:  do_sys_open+0x186/0x210
> Aug 04 03:13:59 localhost.localdomain kernel:  do_syscall_64+0x5b/0x160
> Aug 04 03:13:59 localhost.localdomain kernel:
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> Aug 04 03:13:59 localhost.localdomain kernel: RIP: 0033:0x7f0fd03b0c9e
> Aug 04 03:13:59 localhost.localdomain kernel: RSP: 002b:00007ffd7905f8b0
> EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> Aug 04 03:13:59 localhost.localdomain kernel: RAX: ffffffffffffffda RBX:
> 0000000000000001 RCX: 00007f0fd03b0c9e
> Aug 04 03:13:59 localhost.localdomain kernel: RDX: 0000000000000000 RSI:
> 000055cf0bd89780 RDI: 00000000ffffff9c
> Aug 04 03:13:59 localhost.localdomain kernel: RBP: 0000000000000000 R08:
> 00007f0fd067fc40 R09: 0000000000000007
> Aug 04 03:13:59 localhost.localdomain kernel: R10: 0000000000000000 R11:
> 0000000000000246 R12: 0000000000000000
> Aug 04 03:13:59 localhost.localdomain kernel: R13: 000055cf0d8c5700 R14:
> 0000000000000003 R15: 000055cf0d936d50
> Aug 04 03:13:59 localhost.localdomain kernel: Code: 50 08 65 4c 03 05 7c 5f
> da 5e 49 83 78 10 00 4d 8b 38 0f 84 10 01 00 00 4d 85 ff 0f 84 07 01 00 00
> 41 8b 5e 20 49 8b 3e 4c 01 fb <48> 33 1b >
> Aug 04 03:13:59 localhost.localdomain kernel: RIP:
> kmem_cache_alloc_trace+0x8d/0x1d0 RSP: ffffb4c7c25dfc60
> Aug 04 03:13:59 localhost.localdomain kernel: CR2: 00000000178f90ca
> Aug 04 03:13:59 localhost.localdomain kernel: ---[ end trace
> 59cb442553c1594e ]---
> Aug 04 03:13:59 localhost.localdomain audit[1]: SERVICE_STOP pid=1 uid=0
> auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
> msg='unit=abrt-oops comm="systemd" exe="/usr/lib/system>
> Aug 04 03:13:59 localhost.localdomain systemd[1]: abrt-oops.service: Main
> process exited, code=killed, status=9/KILL
> Aug 04 03:13:59 localhost.localdomain systemd[1]: abrt-oops.service: Failed
> with result 'signal'.
> Aug 04 03:15:24 localhost.localdomain chronyd[1036]: Selected source
> 208.75.89.4
> Aug 04 03:15:56 localhost.localdomain systemd-logind[1024]: Power key
> pressed.
> Aug 04 03:15:56 localhost.localdomain systemd-logind[1024]: Suspending...
> Aug 04 03:15:56 localhost.localdomain NetworkManager[1054]: <info>
> [1533377756.3501] manager: sleep: sleep requested (sleeping: no  enabled:
> yes)
> Aug 04 03:15:56 localhost.localdomain NetworkManager[1054]: <info>
> [1533377756.3506] manager: NetworkManager state is now ASLEEP
> Aug 04 03:15:56 localhost.localdomain NetworkManager[1054]: <info>
> [1533377756.3510] device (wlp2s0): state change: activated -> deactivating
> (reason 'sleeping', sys-iface-state: 'managed')
> Aug 04 03:15:56 localhost.localdomain NetworkManager[1054]: <info>
> [1533377756.3714] device (wlp2s0): state change: deactivating ->
> disconnected (reason 'sleeping', sys-iface-state: 'managed')
> Aug 04 03:15:56 localhost.localdomain dbus-daemon[1046]: [system]
> Activating via systemd: service name='org.freedesktop.nm_dispatcher'
> unit='dbus-org.freedesktop.nm-dispatcher.service' request>
> Aug 04 03:15:56 localhost.localdomain avahi-daemon[1030]: Withdrawing
> address record for fe80::f3ca:ecd8:3b4f:e72a on wlp2s0.
> Aug 04 03:15:56 localhost.localdomain avahi-daemon[1030]: Leaving mDNS
> multicast group on interface wlp2s0.IPv6 with address
> fe80::f3ca:ecd8:3b4f:e72a.
> Aug 04 03:15:56 localhost.localdomain avahi-daemon[1030]: Interface
> wlp2s0.IPv6 no longer relevant for mDNS.
> Aug 04 03:15:56 localhost.localdomain systemd[1]: Starting Network Manager
> Script Dispatcher Service...
> Aug 04 03:15:56 localhost.localdomain kernel: BUG: unable to handle kernel
> paging request at 00000000178f90ca
> Aug 04 03:15:56 localhost.localdomain kernel: PGD 0 P4D 0
> Aug 04 03:15:56 localhost.localdomain kernel: Oops: 0000 [#3] SMP PTI
> Aug 04 03:15:56 localhost.localdomain kernel: Modules linked in:
> snd_seq_midi snd_seq_midi_event snd_usb_usx2y snd_usbmidi_lib snd_rawmidi
> ccm rfcomm fuse vboxnetadp(OE) vboxnetflt(OE) vboxdrv>
> Aug 04 03:15:56 localhost.localdomain kernel:  snd_hwdep snd_seq wmi
> snd_seq_device snd_pcm snd_timer parport_pc parport snd mei_me soundcore
> mei dell_rbtn rfkill lpc_ich shpchp dell_smo8800 p>
> Aug 04 03:15:56 localhost.localdomain kernel: CPU: 1 PID: 2878 Comm:
> (spatcher) Tainted: G      D    OE     4.17.11-200.fc28.x86_64 #1
> Aug 04 03:15:56 localhost.localdomain kernel: Hardware name: Dell Inc.
> Latitude E6530/, BIOS A17 08/19/2015
> Aug 04 03:15:56 localhost.localdomain kernel: RIP:
> 0010:kmem_cache_alloc_trace+0x8d/0x1d0
> Aug 04 03:15:56 localhost.localdomain kernel: RSP: 0018:ffffb4c7c261fe68
> EFLAGS: 00010206
> Aug 04 03:15:56 localhost.localdomain kernel: RAX: 0000000000000000 RBX:
> 00000000178f90ca RCX: 0000000000000000
> Aug 04 03:15:56 localhost.localdomain kernel: RDX: 0000000000004956 RSI:
> 00000000014080c0 RDI: 0000000000026120
> Aug 04 03:15:56 localhost.localdomain kernel: RBP: ffff930a8d803200 R08:
> ffff930a9e2a6120 R09: 0000555a9cca5d60
> Aug 04 03:15:56 localhost.localdomain kernel: R10: fefefefefefefeff R11:
> 0000000000000fe0 R12: 00000000014080c0
> Aug 04 03:15:56 localhost.localdomain kernel: R13: 0000000000000100 R14:
> ffff930a8d803200 R15: 00000000178f90ca
> Aug 04 03:15:56 localhost.localdomain kernel: FS:  00007f413dfaae40(0000)
> GS:ffff930a9e280000(0000) knlGS:0000000000000000
> Aug 04 03:15:56 localhost.localdomain kernel: CS:  0010 DS: 0000 ES: 0000
> CR0: 0000000080050033
> Aug 04 03:15:56 localhost.localdomain kernel: CR2: 00000000178f90ca CR3:
> 00000003c9d3e001 CR4: 00000000001606e0
> Aug 04 03:15:56 localhost.localdomain kernel: Call Trace:
> Aug 04 03:15:56 localhost.localdomain kernel:  ?
> do_execveat_common.isra.37+0xeb/0x790
> Aug 04 03:15:56 localhost.localdomain kernel:
> do_execveat_common.isra.37+0xeb/0x790
> Aug 04 03:15:56 localhost.localdomain kernel:  ?
> strncpy_from_user+0x4a/0x170
> Aug 04 03:15:56 localhost.localdomain kernel:  __x64_sys_execve+0x32/0x40
> Aug 04 03:15:56 localhost.localdomain kernel:  do_syscall_64+0x5b/0x160
> Aug 04 03:15:56 localhost.localdomain kernel:
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> Aug 04 03:15:56 localhost.localdomain kernel: RIP: 0033:0x7f413bc5dde7
> Aug 04 03:15:56 localhost.localdomain kernel: RSP: 002b:00007ffc55bb2748
> EFLAGS: 00000246 ORIG_RAX: 000000000000003b
> Aug 04 03:15:56 localhost.localdomain kernel: RAX: ffffffffffffffda RBX:
> 0000000000000000 RCX: 00007f413bc5dde7
> Aug 04 03:15:56 localhost.localdomain kernel: RDX: 0000555a9cca5d60 RSI:
> 0000555a9cd8e4c0 RDI: 0000555a9cd92bc0
> Aug 04 03:15:56 localhost.localdomain kernel: RBP: 00007ffc55bb29b0 R08:
> 000000000000fefe R09: 0000000000000000
> Aug 04 03:15:56 localhost.localdomain kernel: R10: 0000555a9cd4a900 R11:
> 0000000000000246 R12: 0000555a9cd8e4c0
> Aug 04 03:15:56 localhost.localdomain kernel: R13: 0000555a9cd933a0 R14:
> 0000555a9cd93840 R15: 0000000000000000
> Aug 04 03:15:56 localhost.localdomain kernel: Code: 50 08 65 4c 03 05 7c 5f
> da 5e 49 83 78 10 00 4d 8b 38 0f 84 10 01 00 00 4d 85 ff 0f 84 07 01 00 00
> 41 8b 5e 20 49 8b 3e 4c 01 fb <48> 33 1b >
> Aug 04 03:15:56 localhost.localdomain kernel: RIP:
> kmem_cache_alloc_trace+0x8d/0x1d0 RSP: ffffb4c7c261fe68
> Aug 04 03:15:56 localhost.localdomain kernel: CR2: 00000000178f90ca
> Aug 04 03:15:56 localhost.localdomain kernel: ---[ end trace
> 59cb442553c1594f ]---
> Aug 04 03:15:56 localhost.localdomain kernel: wlp2s0: deauthenticating from
> 84:1b:5e:03:b3:bd by local choice (Reason: 3=DEAUTH_LEAVING)
> Aug 04 03:15:56 localhost.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP):
> wlp2s0: link is not ready
> Aug 04 03:15:56 localhost.localdomain kernel: BUG: unable to handle kernel
> paging request at 00000000178f90ca
> -- Reboot --
> Aug 04 03:16:21 localhost.localdomain kernel: microcode: microcode updated
> early to revision 0x1f, date = 2018-02-07
> Aug 04 03:16:21 localhost.localdomain kernel: Linux version
> 4.17.11-200.fc28.x86_64 (mockbuild at bkernel01.phx2.fedoraproject.org) (gcc
> version 8.1.1 20180712 (Red Hat 8.1.1-5) (GCC)) #1 SMP Mon>
> Aug 04 03:16:21 localhost.localdomain kernel: Command line:
> BOOT_IMAGE=/vmlinuz-4.17.11-200.fc28.x86_64 root=/dev/mapper/fedora-root ro
> rd.luks.uuid=luks-9c1123dd-5aee-41e5-b3c4-b91249d5ed64 r>
> Aug 04 03:16:21 localhost.localdomain kernel: x86/fpu: Supporting XSAVE
> feature 0x001: 'x87 floating point registers'
> Aug 04 03:16:21 localhost.localdomain kernel: x86/fpu: Supporting XSAVE
> feature 0x002: 'SSE registers'
> Aug 04 03:16:21 localhost.localdomain kernel: x86/fpu: Supporting XSAVE
> feature 0x004: 'AVX registers'
> Aug 04 03:16:21 localhost.localdomain kernel: x86/fpu: xstate_offset[2]:
> 576, xstate_sizes[2]:  256
> Aug 04 03:16:21 localhost.localdomain kernel: x86/fpu: Enabled xstate
> features 0x7, context size is 832 bytes, using 'standard' format.
> Aug 04 03:16:21 localhost.localdomain kernel: e820: BIOS-provided physical
> RAM map:
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000000000000-0x000000000009d3ff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x000000000009d400-0x000000000009ffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000000e0000-0x00000000000fffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000000100000-0x000000001fffffff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000020000000-0x00000000201fffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000020200000-0x0000000040003fff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000040004000-0x0000000040004fff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000040005000-0x00000000d7f09fff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000d7f0a000-0x00000000d7ffffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000d8000000-0x00000000d8752fff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000d8753000-0x00000000d87fffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000d8800000-0x00000000d8fb2fff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000d8fb3000-0x00000000d8ffffff] ACPI data
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000d9000000-0x00000000da6fbfff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000da6fc000-0x00000000da7fffff] ACPI NVS
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000da800000-0x00000000dbb1bfff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000dbb1c000-0x00000000dc7a6fff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000dc7a7000-0x00000000dc7e9fff] ACPI NVS
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000dc7ea000-0x00000000dcab2fff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000dcab3000-0x00000000dcfeffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000dcff0000-0x00000000dcffffff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000dd800000-0x00000000df9fffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000f8000000-0x00000000fbffffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000fec00000-0x00000000fec00fff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000fed00000-0x00000000fed03fff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000fed1c000-0x00000000fed1ffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000fee00000-0x00000000fee00fff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x00000000ff000000-0x00000000ffffffff] reserved
> Aug 04 03:16:21 localhost.localdomain kernel: BIOS-e820: [mem
> 0x0000000100000000-0x000000041e5fffff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: NX (Execute Disable)
> protection: active
> Aug 04 03:16:21 localhost.localdomain kernel: random: fast init done
> Aug 04 03:16:21 localhost.localdomain kernel: SMBIOS 2.7 present.
> Aug 04 03:16:21 localhost.localdomain kernel: DMI: Dell Inc. Latitude
> E6530/, BIOS A17 08/19/2015
> Aug 04 03:16:21 localhost.localdomain kernel: e820: update [mem
> 0x00000000-0x00000fff] usable ==> reserved
> Aug 04 03:16:21 localhost.localdomain kernel: e820: remove [mem
> 0x000a0000-0x000fffff] usable
> Aug 04 03:16:21 localhost.localdomain kernel: e820: last_pfn = 0x41e600
> max_arch_pfn = 0x400000000
> Aug 04 03:16:21 localhost.localdomain kernel: MTRR default type: uncachable
> Aug 04 03:16:21 localhost.localdomain kernel: MTRR fixed ranges enabled:
> Aug 04 03:16:21 localhost.localdomain kernel:   00000-9FFFF write-back
> _______________________________________________
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> Alsa-devel at alsa-project.org
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>

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