Re: How do I analyze a soft lockup?

From: Arjan van de Ven
Date: Wed Mar 07 2007 - 10:13:34 EST


On Wed, 2007-03-07 at 15:02 +0100, Rainer Koenig wrote:
> Hi there,
>
> Environment:
>
> Kernel is 2.6.16.27, arch x86_64 on a Dual Core AMD64 machine with
> 4 GB of RAM. Also involved is an Areca 1100 SATA RAID controller
> with the drives from the Tekram website.
>
> Problem:
>
> We get customer reports that a system stops with the following kernel
> messages (as they are submitted to us, we're not able yet to reproduce
> the problem in our laboratory :-( )

looks like a stack overflow or a random memory scribble to me.
Alternatively the stacktrace is entirely garbled, also a possibility.
I assume you checked there were no other external modules involved?
Also can the user use a much later version of the kernel (which has
areca merged and can enable lockdep debugging)?

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/