linux-kernel - Re: [Bug #16614] [2.6.35] usb 2.0 em28xx kernel panic general protection fault: 0000 [#1] SMP RIP: 0010:[<ffffffffa004fbc5>] [<ffffffffa004fbc5>] em28xx_isoc_copy

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Message-Id: <201010112215.59279.rjw@sisk.pl>
Date:	Mon, 11 Oct 2010 22:15:59 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Sander Eikelenboom <linux@...elenboom.it>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	Florian Mickler <florian@...kler.org>
Subject: Re: [Bug #16614] [2.6.35] usb 2.0 em28xx  kernel panic general protection fault: 0000 [#1] SMP          RIP: 0010:[<ffffffffa004fbc5>]  [<ffffffffa004fbc5>] em28xx_isoc_copy_vbi+0x62e/0x812 [em28xx]

On Monday, October 11, 2010, Sander Eikelenboom wrote:
> Hello Rafael,
> 
> This one seems to be fixed, in the sense that i still get an error, but it doesn't crash the kernel.
> And since it was my mistake to use the deprecated video4linux interface instead of the video4linux2, i think it's fine to consider it fixed.
> 
> 
> security:~# ffmpeg -f video4linux -r 25 -s 720x576 -i /dev/video0 out.flv
> FFmpeg version SVN-r20654, Copyright (c) 2000-2009 Fabrice Bellard, et al.
>   built on Nov 29 2009 08:11:53 with gcc 4.3.4
>   configuration: --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libfaad --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libtheora --enable-libdc1394 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libschroedinger --disable-encoder=libschroedinger --enable-avfilter-lavf --enable-libopenjpeg --enable-version3 --disable-altivec --disable-armv5te --disable-armv6 --disable-vis
>   libavutil     50. 5. 1 / 50. 5. 1
>   libavcodec    52.42. 0 / 52.42. 0
>   libavformat   52.39. 2 / 52.39. 2
>   libavdevice   52. 2. 0 / 52. 2. 0
>   libavfilter    1.11. 0 /  1.11. 0
>   libswscale     0. 7. 2 /  0. 7. 2
>   libpostproc   51. 2. 0 / 51. 2. 0
> [video4linux @ 0xff45e0]VIDIOCMCAPTURE: Cannot allocate memory
> /dev/video0: I/O error occurred
> Usually that means that input file is truncated and/or corrupted.

Thanks, closing.

Rafael
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