Re: [PATCH 00/11] 3.0-stable: Fix for leapsecond deadlock & hrtimer/futexissue
From: John Stultz
Date: Tue Jul 17 2012 - 14:21:36 EST
On 07/17/2012 11:15 AM, John Stultz wrote:
On 07/17/2012 10:57 AM, Willy Tarreau wrote:
On Tue, Jul 17, 2012 at 01:33:47PM -0400, John Stultz wrote:
I've already done backports to all the stable kernels to 2.6.32, andThat's very much appreciated, thank you! Do not hesitate to send me
will send out the rest soon.
your reproducers, I'll happily run some tests.
Attached are two tests. One is general exerciser of the leapsecond
code (leap-a-day) which also notes if it sees the hrtimer/futuex early
expiration issue, and the other is a much faster (almost immediate)
reproducer for the leapsecond deadlock (leapcrash).
The leapcrash test will likely wedge unpatched systems in hardirq
context, and has caused lost (dirty) data in my testing, so BEWARE!
RUN AT YOUR OWN RISK!
And of course, the leap-a-day has the same potential, but doesn't
tickle the deadlock issue as aggressively.
As a tangent, I'm looking to try to get these tests integrated with a
testing suite that developers, distros and other testing organizations
run regularly. I'm aware of LTP, however last I looked at it, it seems
to have become a bit messy, being somewhat of a catch all, and in casual
asking around not too many folks I know regularly use it (Is that no
longer the case?).
Are there any other test suites that folks would recommend I look into
for merging these (and other time related) tests?
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