Re: mm3 hang

From: Andrew Morton (akpm@digeo.com)
Date: Wed Jun 04 2003 - 16:47:36 EST


"Martin J. Bligh" wrote:
>
> SDET hangs it every few runs.
>

You have a large number of `ps' instances which appear to be
stuck on /proc's i_sem and lots of processes stuck in
sched_balance_exec->set_cpus_allowed->wait_for_completion.

The latter is a NUMA-special. You might want to examine the
sched_best_cpu() fixes carefully. Also see whether 2.5.70+bk
does the same thing.
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