linux-kernel - Re: System hangs on running kernbench

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Message-Id: <20070718010700.1ca7fd9f.akpm@linux-foundation.org>
Date:	Wed, 18 Jul 2007 01:07:00 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc:	Balbir Singh <balbir@...ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: System hangs on running kernbench

On Wed, 18 Jul 2007 13:26:48 +0530 Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:

> I was running kernbench on top of 2.6.22-rc6-mm1 and I got a Hangcheck
> alert (This is when kernbench reached make -j).

hm, never had a report of that before.  It's the first time I've seen
hangcheck produce anything useful, frankly.

Was the softlockup detector not enabled?

> Also make -j is hanging.

Please try to capture the full sysrq-T output when it is hung.

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