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From: "David MENTRÉ" <dmentre@linux-france.org>
To: caml-list@inria.fr
Subject: Re: [Caml-list] segmentation fault
Date: Mon, 19 Jun 2017 22:15:16 +0200	[thread overview]
Message-ID: <88108a18-8044-bc46-bed3-aef241b4ff48@linux-france.org> (raw)
In-Reply-To: <alpine.DEB.2.20.1706182133490.30282@hadrien>

Hello Julia,

Le 2017-06-18 à 21:41, Julia Lawall a écrit :
> Over several
> runs on two different laptops, the backtraces have nothing obvious in
> common.  The bytecode version does not seem to stack overflow.  Adding
> Gc.print_stat() at a periodic quiescent point in the execution did not
> show a memory leak.

A similar issue related to random crash in native code version was asked
by Alexey Egorov on this list 9 days ago. Daniel Bünzli advised to him
to frequently call Gc.full_major () to have a crash closer to the real
issue.

In the case of Alexey, it was a non tail-recursive call that triggered a
stack overflow and that is not detected in OCaml native code. Apparently
this kind of issue is fixed in next to come OCaml 4.06.0.

Of course, your issue might be entirely different. But frequently
calling Gc.full_major () seems a sensible starting point to me.

Otherwise you have the usual suspects: are you using C bidings? Threads?

Good luck!
david

  reply	other threads:[~2017-06-19 20:15 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-18 19:41 Julia Lawall
2017-06-19 20:15 ` David MENTRÉ [this message]
2017-06-19 20:58   ` Julia Lawall
2017-06-19 21:15     ` Josh Berdine
2017-06-19 21:19       ` Julia Lawall
2017-06-20  1:01         ` Francois BERENGER
2017-06-20  6:34           ` Julia Lawall
2017-06-21 14:20       ` Markus Weißmann
2017-06-23 17:03   ` SP
2017-06-23 17:25     ` Julia Lawall
2017-06-29 15:19       ` Damien Doligez
2017-06-29 15:26         ` Julia Lawall
2017-06-29 23:16         ` Julia Lawall
2017-06-30 10:55         ` Julia Lawall
2017-06-30 14:06           ` SP
2017-07-01 18:37         ` Julia Lawall
  -- strict thread matches above, loose matches on Subject: below --
2008-06-03  3:09 Segmentation fault Jacques Le Normand
2008-06-03 14:08 ` [Caml-list] " Berke Durak

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