kernel panic on shutdown

Gilad Arnold arnold at
Mon Jun 29 12:04:47 PDT 2009

Any clue? Can anyone confirm that this is a problem with the radeon
driver (based on the panic trace)?


On Tue, Jun 16, 2009 at 10:52:51AM -0700, Gilad Arnold wrote:
> Dear all,
> I've been experiencing this with recent versions of xf86-driver-ati,
> currently running 6.12.2 on a Thinkpad T40. I believe it is caused by
> the video driver, apologies in advance if it isn't. I'm running a Gentoo
> system with kernel 2.6.28-tuxonice, it has happened with an older
> version of the kernel as well.
> This kernel panic happens consistently whenever I'm issuing a system
> shutdown from gdm. What happens is that the system switches to console
> mode and starts shutting down various daemons, then invoking a kernel
> panic.  This is particularly bothering because it happens before the
> filesystems get a chance to properly flush their journals... bear in
> mind that this is a mobile system so it gets shutdown fairly often.
> I can work around this glitch if I manually shift to console mode
> (Ctrl-Alt-F1), login and invoke shutdown from the command line. Also,
> switching back and forth between console and X modes seems to work fine.
> Here are a couple of snapshots showing the tail of the panic trace. Let
> me know if you need more information (I'm a complete newbie when it
> comes to deciphering panic messages).
> Thanks for your help.
> Gilad
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