linux-kernel - Re: [3.10] Oopses in kmem_cache_allocate() via prepare

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Message-ID: <20130820072143.GJ27005@ZenIV.linux.org.uk>
Date:	Tue, 20 Aug 2013 08:21:43 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Ian Applegate <ia@...udflare.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Christoph Lameter <cl@...two.org>,
	Simon Kirby <sim@...tway.ca>,
	Pekka Enberg <penberg@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Chris Mason <chris.mason@...ionio.com>
Subject: Re: [3.10] Oopses in kmem_cache_allocate() via prepare_creds()

On Tue, Aug 20, 2013 at 12:17:52AM -0700, Ian Applegate wrote:
> We are also seeing this or a similar issue. On a fairly widespread
> deployment of 3.10.1 & 3.10.6 this occurred fairly consistently on the
> order of 36 days (combined MTBF.)

Do you have any boxen with CONFIG_DEBUG_MUTEXES among those?  What
kind of setup do you have on those, BTW?
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