From: Bruce Cran <bruce@cran.org.uk>
To: Jens Axboe <axboe@kernel.dk>, fio@vger.kernel.org
Subject: Re: fio newer than 2.2.12 segfaults on examples/tiobench-example.fio
Date: Wed, 20 Jan 2016 21:38:18 -0700 [thread overview]
Message-ID: <56A060BA.2060300@cran.org.uk> (raw)
In-Reply-To: <56A05EDC.4030309@cran.org.uk>
On 01/20/2016 09:30 PM, Bruce Cran wrote:
> I'm wondering if this is a microcode bug, since I have one of the new
> Skylake CPUs (Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz; stepping: 3;
> microcode: 0x6a) and others have mentioned crashes in
> __lll_unlock_elision related to broken CPUs/BIOSes, though for older
> generations.
For anyone who wants to see what the problems around elision lock is all
about, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=800574
(libc6: lock elision hazard on Intel Broadwell and Skylake).
--
Bruce
prev parent reply other threads:[~2016-01-21 4:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-17 14:03 fio newer than 2.2.12 segfaults on examples/tiobench-example.fio Bruce Cran
2016-01-18 21:57 ` Jens Axboe
2016-01-21 4:30 ` Bruce Cran
2016-01-21 4:33 ` Jens Axboe
2016-01-21 4:43 ` Bruce Cran
2016-01-21 4:51 ` Jens Axboe
2016-01-21 4:54 ` Jens Axboe
2016-01-21 4:38 ` Bruce Cran [this message]
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