Re: System deadlock on 2.6.24-rt20

From: Thomas Gleixner
Date: Fri Apr 03 2009 - 06:29:26 EST


On Fri, 3 Apr 2009, Remy Bohmer wrote:

> Hello All,
>
> We encountered a nasty system lockup on an X86 system running
> 2.6.24.7-rt20. (Intel Core2Duo system)
> What happens is that the system freezes completely after some time.
> After a lot of testing we are now able to reproduce this problem
> within 5 minutes of testing.
>
> The backtrace was not printed to the serial terminal, but when we
> accidentally used the VGA
> terminal the backtrace was there. So we used/hacked the earlyprintk
> mechanism to get the logging out.
>
> Does anybody recognise these backtraces? And if so, is there a fix for
> it already?

http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.24.7-rt27.bz2

Thanks,

tglx
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