Oops unplugging Logitech QuickCam Pro 4000

[Michael Gratton]

The attached oops occurred after plugging the camera in, trying to access the device, running a program which failed to select it, killing the program then unplugging the camera.

It had been previously working okay, with a few suspend/resume cycles in between then and the oops, however.

lsusb:
> Bus 005 Device 004: ID 046d:08b2 Logitech, Inc. QuickCam Pro 4000

Error message from OpenCV program, using v4l1compat.so:
> select timeout

libv4l-0: 0.6.0-1
libcv1: 1.0.0-6.2ubuntu1

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: mjg 1890 F.... pulseaudio
 /dev/snd/controlC0: mjg 1890 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf8220000 irq 17'
   Mixer name : 'Analog Devices AD1984'
   Components : 'HDA:11d41984,17aa20d6,00100400'
   Controls : 29
   Simple ctrls : 18
Card1.Amixer.info:
 Card hw:1 'U0x46d0x8b2'/'USB Device 0x46d:0x8b2 at usb-0000:00:1d.0-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:08b2'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined
   Capture channels: Mono
   Limits: Capture 0 - 3
   Mono: Capture 0 [0%] [30.00dB] [on]
Date: Sat Oct 24 12:28:54 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=55aec488-85b2-49ec-88e8-99ff0b70fcaa
MachineType: LENOVO 766734M
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=1b1ce809-f4ae-4233-9f87-0d77e3e4c342 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
SourcePackage: linux
Tags: kernel-oops
Title: [232963.885533] ------------[ cut here ]------------
Uname: Linux 2.6.31-14-generic x86_64
WpaSupplicantLog:

dmi.bios.date: 12/28/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NETA6WW (2.06 )
dmi.board.name: 766734M
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7NETA6WW(2.06):bd12/28/2007:svnLENOVO:pn766734M:pvrThinkPadX61s:rvnLENOVO:rn766734M:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 766734M
dmi.product.version: ThinkPad X61s
dmi.sys.vendor: LENOVO

[Michael Gratton (mjog)]

Definitely a suspend/resume issue, I can reproduce the camera failing to work (but not the oops) by doing a suspend/resume.

After resuming, I'm getting the following in kern.log:

> Oct 24 20:49:58 localhost kernel: [23531.320070] usb 3-2: new full speed USB device using uhci_hcd and address 41
> Oct 24 20:49:58 localhost kernel: [23531.860070] usb 3-2: device not accepting address 41, error -71
> Oct 24 20:49:58 localhost kernel: [23531.920126] hub 3-0:1.0: unable to enumerate USB device on port 2
> Oct 24 20:50:13 localhost kernel: [23546.750093] hub 1-0:1.0: unable to enumerate USB device on port 2

After unloading/reloading pwc.ko and videodev.ko, it gets a bit further, but still does not work:

> Oct 24 21:11:36 localhost kernel: [24830.015689] Linux video capture interface: v2.00
> Oct 24 21:11:36 localhost kernel: [24830.022038] pwc: Philips webcam module version 10.0.13 loaded.
> Oct 24 21:11:36 localhost kernel: [24830.022045] pwc: Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840.
> Oct 24 21:11:36 localhost kernel: [24830.022051] pwc: Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30,
> Oct 24 21:11:36 localhost kernel: [24830.022056] pwc: the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100.
> Oct 24 21:11:36 localhost kernel: [24830.022123] usbcore: registered new interface driver Philips webcam
> Oct 24 21:11:43 localhost kernel: [24836.480092] usb 5-2: new full speed USB device using uhci_hcd and address 4
> Oct 24 21:11:43 localhost kernel: [24836.767349] usb 5-2: configuration #1 chosen from 1 choice
> Oct 24 21:11:43 localhost kernel: [24836.772692] pwc: Logitech QuickCam 4000 Pro USB webcam detected.
> Oct 24 21:11:43 localhost kernel: [24836.772777] pwc: Registered as /dev/video0.
> Oct 24 21:11:43 localhost kernel: [24837.062269] input: PWC snapshot button as /devices/pci0000:00/0000:00:1d.0/usb5/5-2/input/input11
> Oct 24 21:11:58 localhost kernel: [24851.820083] usb 3-2: new full speed USB device using uhci_hcd and address 59
> Oct 24 21:11:58 localhost kernel: [24852.002573] usb 3-2: configuration #1 chosen from 1 choice
> Oct 24 21:11:59 localhost kernel: [24852.185401] usb 3-2: usbfs: USBDEVFS_CONTROL failed cmd rhythmbox rqt 128 rq 6 len 255 ret -71
> Oct 24 21:11:59 localhost kernel: [24852.186423] usb 3-2: usbfs: USBDEVFS_CONTROL failed cmd rhythmbox rqt 128 rq 6 len 1024 ret -71
> Oct 24 21:11:59 localhost kernel: [24852.290148] usb 3-2: USB disconnect, address 59
> Oct 24 21:12:46 localhost kernel: [24900.030089] hub 1-0:1.0: unable to enumerate USB device on port 2
> Oct 24 21:12:59 localhost kernel: [24913.102604] hub 1-0:1.0: unable to enumerate USB device on port 2
> Oct 24 21:13:02 localhost kernel: [24915.142588] hub 1-0:1.0: unable to enumerate USB device on port 2
> Oct 24 21:14:03 localhost kernel: [24977.070077] usb 3-2: new full speed USB device using uhci_hcd and address 60
> Oct 24 21:14:04 localhost kernel: [24977.220409] usb 3-2: device descriptor read/all, error -71
> Oct 24 21:14:04 localhost kernel: [24977.280104] hub 3-0:1.0: unable to enumerate USB device on port 2
> Oct 24 21:14:34 local...

[Michael Gratton (mjog)]

Hmm, this might be related to Bug #443278 since I couldn't get the camera working at all after a reboot, but it did work if plugged in at boot.