linux-kernel - Re: [PATCH 0/2][RFC] Potential fix for leapsecond caused futex issue (v2)

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Message-ID: <20120702185103.GA32257@redhat.com>
Date:	Mon, 2 Jul 2012 14:51:03 -0400
From:	Dave Jones <davej@...hat.com>
To:	John Stultz <johnstul@...ibm.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Prarit Bhargava <prarit@...hat.com>, stable@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 0/2][RFC] Potential fix for leapsecond caused futex issue
 (v2)

On Sun, Jul 01, 2012 at 09:12:59PM -0700, John Stultz wrote:
 > On 07/01/2012 11:29 AM, John Stultz wrote:
 > > TODOs:
 > > * Chase down the futex/hrtimer interaction to see if this could
 > > be triggered in any other way.
 > > * Get Tglx's input/ack
 > > * Generate a backport for pre-v3.4 kernels
 > So while still waiting for feedback on the clock_was_set() change, I 
 > went ahead and generated backports for most of the stable kernels on 
 > kernel.org.
 > 
 > Clearly these shouldn't go anywhere until the fix is upstream, but since 
 > I assume there's a number of distro developers who are likely under 
 > pressure to have a fix soon, I wanted to make them available so no one 
 > is duplicating work.
 > 
 > You can find them here:
 > http://git.linaro.org/gitweb?p=people/jstultz/linux.git;a=summary
 > 
 > I did boot and test each of those kernels with my leaptest-timer.c test 
 > successfully.

I'm curious how the test that I did with the kernel patch,
or Richard Cochran's userspace test program didn't trigger this bug
when we tested last week.

any ideas what we missed ?

	Dave
 
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