linux-kernel - Re: 2.6.30-rc kills my box hard

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Message-ID: <20090518130246.4a68800c@bike.lwn.net>
Date:	Mon, 18 May 2009 13:02:46 -0600
From:	Jonathan Corbet <corbet@....net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.30-rc kills my box hard - and lockdep chains

On Sat, 16 May 2009 16:14:19 -0700
Andrew Morton <akpm@...ux-foundation.org> wrote:

> So the lockup isn't due to lockdep.

It is not; I turned on lockdep in an attempt to track down the problem.

> Did you try all the usual sysrq-P, nmi-watchdog stuff?

Yep.  But I've never been able to get a response out of the system when
this kind of thing happens.

> Is netconsole enabled, to see if it squawked as it died?

That I do not have; worth trying.

One interesting thing of note: I was reliably getting about one lockup
per day.  Until I turned on lockdep.  It's been 4-5 days now with
no repeats of the problem.  I have no idea if it's coincidental or if
there is a real correlation there.

jon
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