Bug#512339: linux-image-2.6-amd64: Mplayer crash causes BUG: unable to handle kernel, NULL pointer dereference at 0000000000000000

[maximilian attems <max@stro.at>]

tags 512339 moreinfo
stop

On Mon, 19 Jan 2009, Alex Dănilă wrote:

> Package: linux-image-2.6-amd64
> Version: 2.6.26+17
> Severity: important
> 
> An mplayer crash when playing specific files will trigger the kernel
> error message that will be described. From that moment on, a range
> of crashed/freezed processes can
> be killed no more. Example of such unkillable processes:
> 29866 ?        00:00:00 kaffeine
> 4005 ?        00:00:00 gmplayer
> 4309 ?        00:00:00 mplayer
> 2491 ?        00:02:57 amarokapp <defunct>
> 4327 ?        00:00:03 vlc <defunct>
> I mark this as important as processes like Kaffeine and Amarok can
> no longer be started until a computer restart.
> A file that makes MPlayer crash like that:
> http://ruina.tam.cornell.edu/research/topics/bicycle_mechanics/JBike6_web_folder/JBike6_self_stable_files/bicycle_stability.mov
> Playing this file will make other players crash, but not affecting
> the kernel like that.
> 
> The kernel message:
> [45957.803729] BUG: unable to handle kernel NULL pointer dereference
> at 0000000000000000
> [45957.803729] IP: [<ffffffffa0207cfa>]
> :snd_hda_intel:get_alloc_hash+0x4f/0x71
> [45957.803729] PGD b794f067 PUD b50ec067 PMD 0
> [45957.803729] Oops: 0002 [1] SMP
> [45957.803729] CPU 1
> 

could not reproduce with mplayer on lenny uptodate 5.0.4 i386

Linux version 2.6.26-2-686-bigmem (Debian 2.6.26-21) (dannf@debian.org)
(gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Sat Dec
26 09:26:36 UTC 2009

nor on a Lenny amd64 box although running allmost current trunk
Linux version 2.6.32-trunk-amd64 (Debian 2.6.32-3) (ben@decadent.org.uk)
(gcc version 4.3.4 (Debian 4.3.4-6) ) #1 SMP Sat Dec 26 17:13:29 UTC 2009


could reproduce an mplayer crash on an amd64 box,
where also debian-multimedia stuff was added as i wouldn't
guarantee for the security of this software repo, I guess this bug can
be closed unless bug reporter can reproduce with clean uptodate lenny
or sid?

thanks for the report.