Re: mm3 hang

[Martin J. Bligh]

--On Wednesday, June 04, 2003 14:47:36 -0700 Andrew Morton <[e-mail]> wrote:

> "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.

OK, thanks. I'm getting several different hangs, so getting confused ;-)

> The latter is a NUMA-special.  You might want to examine the
> sched_best_cpu() fixes carefully.  

Mmm. those looked like they were only for nodes with no cpus ... matt?

> Also see whether 2.5.70+bk does the same thing.

Good point - will try that.

Thanks,

M.