pe, 2012-06-15 kello 23:41 -0500, Jonathan Nieder kirjoitti:
Martin-Éric Racine wrote:
usb 1-7: new high-speed USB device number 3 using ehci_hcd
[...]
usb 1-7: New USB device found, idVendor=0ac8, idProduct=0321
usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-7: Product: USB2.0 Web Camera
usb 1-7: Manufacturer: Vimicro Corp.
[...]
Linux media interface: v0.10
Linux video capture interface: v2.00
gspca_main: v2.14.0 registered
gspca_main: vc032x-2.14.0 probing 0ac8:0321
usbcore: registered new interface driver vc032x
The device of interest is discovered.
gspca_main: ISOC data error: [36] len=0, status=-71
gspca_main: ISOC data error: [65] len=0, status=-71
[...]
gspca_main: ISOC data error: [48] len=0, status=-71
video_source:sr[3246]: segfault at 0 ip (null) sp ab36de1c error 14 in cheese[8048000+21000]
gspca_main: ISOC data error: [17] len=0, status=-71
(The above data error spew starts around t=121 seconds and continues
at a rate of about 15 messages per second. The segfault is around
t=154.)
The vc032x code hasn't changed since 3.4.1, so please report your
symptoms to Jean-François Moine <moinejf@free.fr>, cc-ing
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, and either
me or this bug log so we can track it. Be sure to mention:
- steps to reproduce, expected result, actual result, and how the
difference indicates a bug (should be simple enough in this case)
1. Ensure that user 'myself' is a member of the 'video' group.
2. Launch the webcam application Cheese from the GNOME desktop.
Expected result: Cheese displays whatever this laptop's camera sees.
Actual result: Cheese crashes while attempting to access the camera.
- how reproducible the bug is (100%?)
100%
- which kernel versions you have tested and result with each (what is
the newest kernel version that worked?)
It probably was 3.1.0 or some earlier 3.2 release (the upcoming Debian
will release with 3.2.x; 3.4 was only used here for testing purposes),
but I wouldn't know for sure since I don't use my webcam too often.