linux-kernel - Re: deadlock in lru_add

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Message-ID: <20140310155053.GA26188@redhat.com>
Date:	Mon, 10 Mar 2014 11:50:53 -0400
From:	Dave Jones <davej@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chris Metcalf <cmetcalf@...era.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>
Subject: Re: deadlock in lru_add_drain ? (3.14rc5)

On Mon, Mar 10, 2014 at 11:01:06AM -0400, Tejun Heo wrote:

 > > On Sat, Mar 8, 2014 at 2:00 PM, Dave Jones <davej@...hat.com> wrote:
 > > > I left my fuzzing box running for the weekend, and checked in on it this evening,
 > > > to find that none of the child processes were making any progress.
 > > > cat'ing /proc/n/stack shows them all stuck in the same place..
 > > > Some examples:
 > 
 > Dave, any chance you can post full sysrq-t dump?

It's too big to fit in the ring-buffer, so some of it gets lost before
it hits syslog, but hopefully what made it to disk is enough.
http://codemonkey.org.uk/junk/sysrq-t

	Dave

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