From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: Yet another profiler crash [Was: Re: Issues for 24.3]
Date: Mon, 28 Jan 2013 17:38:58 +0900 [thread overview]
Message-ID: <wl1ud5itwd.wl%mituharu@math.s.chiba-u.ac.jp> (raw)
In-Reply-To: <51060E8A.6030902@yandex.ru>
>>>>> On Mon, 28 Jan 2013 09:37:14 +0400, Dmitry Antipov <dmantipov@yandex.ru> said:
>>> Crash related to new profiler?
>>> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13545
>>
>> A recipe was requested, but no response.
> This crash is likely caused by C stack overflow and may be really
> hard to reproduce.
Can we make sure that keys (backtraces?) in the hash tables used in
the profiler are always acyclic? Otherwise, using the `equal' test
for such keys are wrong and may lead to stack overflow, because an
error signal triggers another hash table operation in the profiler.
I noticed that the emacs-24 branch used the `equal' test, but the
trunk used a specialized function (cmpfn_profiler) for comparing keys.
Probably the issue is fixed in the trunk.
YAMAMOTO Mitsuharu
mituharu@math.s.chiba-u.ac.jp
next prev parent reply other threads:[~2013-01-28 8:38 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-27 3:20 Issues for 24.3 Glenn Morris
2013-01-27 6:36 ` Eli Zaretskii
2013-01-28 5:37 ` Yet another profiler crash [Was: Re: Issues for 24.3] Dmitry Antipov
2013-01-28 8:38 ` YAMAMOTO Mitsuharu [this message]
2013-01-30 17:33 ` Issues for 24.3 Stefan Monnier
2013-02-01 4:06 ` Glenn Morris
2013-02-01 5:25 ` Drew Adams
2013-02-01 16:33 ` Drew Adams
2013-02-01 16:37 ` Drew Adams
2013-02-01 8:14 ` Eli Zaretskii
2013-02-02 3:13 ` Glenn Morris
2013-02-01 18:45 ` Ivan Kanis
2013-02-01 8:49 ` Alan Mackenzie
2013-02-02 3:19 ` Glenn Morris
2013-02-02 19:41 ` Alan Mackenzie
2013-02-01 23:30 ` Dmitry Gutov
2013-02-02 3:15 ` Glenn Morris
2013-02-02 9:29 ` Dmitry Gutov
2013-02-02 3:48 ` J Irving
2013-02-05 12:22 ` Jan Djärv
2013-02-05 14:34 ` J Irving
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