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Message-Id: <1248848568.6757.13.camel@fnki-nb00130>
Date: Wed, 29 Jul 2009 08:22:48 +0200
From: Jens Rosenboom <jens@...one.net>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Sonny Rao <sonnyrao@...ibm.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...e.hu>,
Thomas Gleixner <tglx@...utronix.de>
Subject: Re: futexes: Still infinite loop in get_futex_key() in 2.6.31-rc4
On Mon, 2009-07-27 at 15:36 +0200, Peter Zijlstra wrote:
[...]
> Bugger.. how easy it is to reproduce?
Okay, my colleague found the right combination of scripts, take the two
attached, run them both a couple of times in parallel for some hours,
and get a stuck ps. This happens both on an old 2.6.29.1 I happened to
still have on one machine as with 2.6.31-rc4. Both of them dual-core
Opterons as the original one. If you want further tracebacks or other
information, let me know.
Download attachment "null.pl" of type "application/x-perl" (79 bytes)
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