Bug 847679
| Summary: | Kernel panic in snd_usb_audio @ release_urbs : unable to handle kernel NULL pointer dereference at 0000000000000070 | ||||||||||
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| Product: | [Fedora] Fedora | Reporter: | Andrew <travneff> | ||||||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||||||
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||||
| Severity: | unspecified | Docs Contact: | |||||||||
| Priority: | unspecified | ||||||||||
| Version: | 17 | CC: | gansalmon, itamar, jforbes, jonathan, kernel-maint, madhu.chinakonda, travneff | ||||||||
| Target Milestone: | --- | ||||||||||
| Target Release: | --- | ||||||||||
| Hardware: | x86_64 | ||||||||||
| OS: | Linux | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2013-02-01 15:54:57 UTC | Type: | Bug | ||||||||
| Regression: | --- | Mount Type: | --- | ||||||||
| Documentation: | --- | CRM: | |||||||||
| Verified Versions: | Category: | --- | |||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||
| Embargoed: | |||||||||||
| Attachments: |
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Created attachment 603934 [details]
lsusb output for USB audio card
Created attachment 611269 [details]
dmesg output
Happened again after video playback resume in mplayer. System almost recovered by itself after several seconds. Sound became broken and it wasn't possible to remove snd_usb_audio module even after device unplug:
# modprobe -r snd_usb_audio
FATAL: Module snd_usb_audio is in use.
# lsmod | grep usb
snd_usb_audio 130222 2
snd_usbmidi_lib 24728 1 snd_usb_audio
snd_hwdep 17650 1 snd_usb_audio
snd_rawmidi 29531 1 snd_usbmidi_lib
snd_pcm 97292 6 snd_usb_audio,snd_ac97_codec,snd_intel8x0
snd 79242 18 snd_usb_audio,snd_ac97_codec,snd_intel8x0,snd_hwdep,snd_timer,snd_pcm,snd_rawmidi,snd_usbmidi_lib,snd_seq_device
Kernel 3.5.3-1.fc17.x86_64
Are you still seeing this with 3.6.11 or newer? I'm on 3.6.10-4 (current version for f18) and for all the time I was using USB audio this bug have happened just a several times. I'll update current issue if it happen at 3.6.11+ This bug is being closed because it has been set needinfo for more than 2 weeks without a response. If this is still an issue, please reopen and reply with the requested information. |
Created attachment 603933 [details] /var/log/messages Happened after something like that (qmmp - audio player): killall -STOP qmmp sleep 2h killall -STOP qmmp sleep 10m killall -CONT qmmp Don't mind a lot of debug prints in kernel messages. u->ep / u->ep->chip / u->urb pointers might be null in release_urb_ctx() inlined in release_urbs() Audio card HW: Ibasso D7 (Sidewinder), lsusb output attached. Kernel 3.5.1-1.fc17.x86_64