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From: Anton Bachin <antronbachin@gmail.com>
To: "Maxime Dénès" <mail@maximedenes.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] [IMPORTANT] Intel Skylake / Kaby Lake hardware bug affects OCaml programs
Date: Fri, 30 Jun 2017 10:38:42 -0500	[thread overview]
Message-ID: <CA88C07D-9B05-43B2-BAE8-CF633E39193E@gmail.com> (raw)
In-Reply-To: <d58a44b9-6819-a38a-6ca7-cffcfeab9a09@maximedenes.fr>

> On 06/30/2017 03:51 PM, Xavier Leroy wrote
>> Random crashes caused by this bug were observed at Ahrefs and another industrial user of OCaml, and also by users of Coccinelle and of Coq.
> 
> Just to emphasize the importance of this problem, we observed that the compilation of Coq on impacted machines would typically fail (segfault) with probably close to 1.


To further emphasize the importance of this problem, putting an Lwt program under full load in a stress test triggered segfaults with probability 1, usually within a few minutes, and within at most 30, for the users observing it.

And thanks from me also for tracking it down.

Anton


  reply	other threads:[~2017-06-30 15:38 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-30 13:51 Xavier Leroy
2017-06-30 14:15 ` Xavier Leroy
2017-06-30 15:17   ` Gabriel Scherer
2017-06-30 15:31     ` Emilio Jesús Gallego Arias
2017-06-30 16:30     ` Julia Lawall
2017-06-30 16:46       ` Anton Bachin
2017-06-30 17:03         ` Xavier Leroy
2017-07-05  1:01     ` Johannes Kanig
2017-06-30 15:28   ` Mark Shinwell
2017-06-30 15:19 ` Maxime Dénès
2017-06-30 15:38   ` Anton Bachin [this message]
2017-07-21 13:00 ` David MENTRÉ
2017-07-22  7:27   ` Gabriel Scherer

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