From: Matthew Dobson <colpatch@us.ibm.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: mm3 hang
Date: Wed, 04 Jun 2003 15:19:19 -0700 [thread overview]
Message-ID: <3EDE7067.1090200@us.ibm.com> (raw)
In-Reply-To: 1282280000.1054762987@flay
Martin J. Bligh wrote:
> --On Wednesday, June 04, 2003 14:47:36 -0700 Andrew Morton <akpm@digeo.com> 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?
I don't think that set of patches would do much for this problem, but
one never knows?
>>Also see whether 2.5.70+bk does the same thing.
>
>
> Good point - will try that.
>
> Thanks,
>
> M.
prev parent reply other threads:[~2003-06-04 22:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-04 20:32 mm3 hang Martin J. Bligh
2003-06-04 21:47 ` Andrew Morton
2003-06-04 21:43 ` Martin J. Bligh
2003-06-04 22:19 ` Matthew Dobson [this message]
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