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Re: sparc64 2.6 SMP RED state exception

On Fri, 2006-04-07 at 13:03 +0200, BERTRAND Joël wrote:
> Blars Blarson a écrit :
> > I've submitted bug 361214 about the frequent sparc SMP crashes with 2.6
> > kernels.
> > 
> > Is anyone running a sparc 2.6 SMP kernel and NOT having the system
> > crash under heavy disk I/O?  Please let the bug know if you have any
> > additional information.
> 	I use a sparc64 SMP kernel on my U60 (and on my U420) without any 
> trouble. Kernel is official kernel (not from debian tree):
> Linux bohr #1 SMP PREEMPT Fri Mar 10 23:27:31 CET 2006 sparc64 
> GNU/Linux
> 	I don't have any trouble with sparc64 architecture, only with 2.6 and 
> sparc32 :-( Maybe this bug come from the same location than the bug I 
> have submitted in bugzilla.kernel.org (#6344)... DMA mistake that only 
> occurs with heavy disk I/O...
> 	Regards,
> 	JKB

We have found that some systems are fine with later 2.6 kernels (say, in
the 2.6.15 series) and some are not.  sparc32 systems are a problem;
U1/U2 systems routinely "crash under heavy disk I/O", U60 now seem fine,
SB1000 is fine, I think U5/U10 are OK, and so on.

Ferris McCormick (P44646, MI) <fmccor@gentoo.org>
Developer, Gentoo Linux (Devrel, Sparc)

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