From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
To: jan.h.d@swipnet.se
Cc: keramida@ceid.upatras.gr, cyd@stupidchicken.com, emacs-devel@gnu.org
Subject: Re: Pretest?
Date: Thu, 15 Mar 2007 21:08:10 +0900 (JST) [thread overview]
Message-ID: <20070315.210810.236560633.mituharu@math.s.chiba-u.ac.jp> (raw)
In-Reply-To: <45F92841.3090600@swipnet.se>
>>>>> On Thu, 15 Mar 2007 12:04:33 +0100, Jan Djärv <jan.h.d@swipnet.se> said:
>> I suspect src/gmalloc.c, which does not provide thread-safe malloc
>> (correct me if I'm wrong), is used while HAVE_GTK_AND_PTHREAD is
>> defined.
> If src/gmalloc.c is used, then the hooks in alloc.c are used, so
> they should be thread safe.
No, alloc_mutex only protects the variables __malloc_hook etc., but
not for the heap itself. Consider the following scenario:
1) The main thread calls malloc.
2) It then calls emacs_blocked_malloc via __malloc_hook.
3) __malloc_hook is set to old_malloc_hook in emacs_blocked_malloc.
4) Now the main thread is in execution of the original malloc.
5) Another thread also calls malloc.
6) The thread also executes the original malloc because
__malloc_hook == old_malloc_hook.
YAMAMOTO Mitsuharu
mituharu@math.s.chiba-u.ac.jp
next prev parent reply other threads:[~2007-03-15 12:08 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-23 9:30 Pretest? Juanma Barranquero
2007-02-23 18:06 ` Pretest? Eli Zaretskii
2007-02-23 18:48 ` Pretest? Chong Yidong
2007-02-23 19:36 ` Pretest? Eli Zaretskii
2007-02-24 15:40 ` Pretest? Chong Yidong
2007-02-24 19:07 ` Pretest? Eli Zaretskii
2007-02-25 4:05 ` Pretest? Richard Stallman
2007-02-25 19:33 ` Pretest? Chong Yidong
2007-03-01 23:38 ` Pretest? Chong Yidong
2007-03-02 1:12 ` Pretest? Lennart Borgman (gmail)
2007-03-02 2:01 ` Pretest? Juanma Barranquero
2007-03-02 8:20 ` Pretest? David Kastrup
2007-03-02 9:23 ` Pretest? Juanma Barranquero
2007-03-03 11:40 ` Pretest? Eli Zaretskii
2007-03-04 0:28 ` Pretest? Giorgos Keramidas
2007-03-04 20:25 ` Pretest? Chong Yidong
2007-03-04 20:32 ` Pretest? Giorgos Keramidas
2007-03-04 20:38 ` Pretest? David Kastrup
2007-03-04 20:47 ` Pretest? Giorgos Keramidas
2007-03-05 7:15 ` Pretest? Jan Djärv
2007-03-15 10:39 ` Pretest? YAMAMOTO Mitsuharu
2007-03-15 11:04 ` Pretest? Jan Djärv
2007-03-15 12:08 ` YAMAMOTO Mitsuharu [this message]
2007-03-16 7:52 ` Pretest? Jan Djärv
2007-03-19 8:00 ` Pretest? Jan Djärv
2007-03-19 9:31 ` Pretest? YAMAMOTO Mitsuharu
2007-03-19 21:16 ` Pretest? Giorgos Keramidas
2007-03-20 7:33 ` Pretest? Jan Djärv
2007-03-27 8:07 ` Pretest? Jan Djärv
2007-03-28 8:24 ` Pretest? YAMAMOTO Mitsuharu
2007-03-05 7:13 ` Pretest? Jan Djärv
2007-03-06 9:38 ` Pretest? Piet van Oostrum
2007-03-07 1:03 ` Pretest? Richard Stallman
2007-03-14 7:21 ` Pretest? Piet van Oostrum
2007-03-15 0:39 ` Pretest? YAMAMOTO Mitsuharu
2007-03-15 5:31 ` Pretest? Richard Stallman
2007-03-15 9:33 ` Pretest? YAMAMOTO Mitsuharu
2007-03-16 5:20 ` Pretest? Richard Stallman
2007-03-19 9:53 ` Pretest? YAMAMOTO Mitsuharu
2007-03-19 10:05 ` Pretest? Kim F. Storm
2007-03-19 21:57 ` Pretest? Richard Stallman
2007-03-20 9:18 ` Pretest? YAMAMOTO Mitsuharu
2007-03-15 1:38 ` Pretest? Richard Stallman
-- strict thread matches above, loose matches on Subject: below --
2007-02-23 18:15 cygwin succesfull straight build Eli Zaretskii
2007-03-07 1:26 ` Pretest? Angelo Graziosi
2007-03-08 19:40 ` Pretest? Chong Yidong
2007-03-09 13:59 ` Pretest? Giorgos Keramidas
2007-03-09 14:44 ` Pretest? Chong Yidong
2007-03-09 17:07 ` Pretest? Christian Faulhammer
2007-03-09 17:35 ` Pretest? Juanma Barranquero
2007-03-09 18:33 ` Pretest? Chong Yidong
2007-03-09 17:49 ` Pretest? Eli Zaretskii
2007-03-09 18:07 ` Pretest? Giorgos Keramidas
2007-03-09 21:26 ` Pretest? Richard Stallman
2007-03-12 10:39 ` Pretest? Juanma Barranquero
2007-03-12 10:42 ` Pretest? David Kastrup
2007-03-12 11:46 ` Pretest? Juanma Barranquero
2007-03-12 14:53 ` Pretest? Stefan Monnier
2007-03-12 15:46 ` Pretest? Juanma Barranquero
2007-03-12 15:53 ` Pretest? David Kastrup
2007-03-12 20:55 ` Pretest? Chong Yidong
2007-03-12 21:32 ` Pretest? Juanma Barranquero
2007-03-13 1:03 ` Pretest? Chong Yidong
2007-03-13 9:37 ` Pretest? Juanma Barranquero
2007-03-13 2:43 ` Pretest? Richard Stallman
2007-03-13 9:43 ` Pretest? Juanma Barranquero
2007-03-13 9:52 ` Pretest? Andreas Schwab
2007-03-13 10:09 ` Pretest? David Kastrup
2007-03-13 10:23 ` Pretest? Juanma Barranquero
2007-03-19 5:15 ` Pretest? Richard Stallman
2007-03-14 3:24 ` Pretest? Richard Stallman
2007-03-14 7:10 ` Pretest? David Kastrup
2007-03-14 13:39 ` Pretest? Stefan Monnier
2007-03-14 14:04 ` Pretest? David Kastrup
2007-03-14 14:19 ` Pretest? Stefan Monnier
2007-03-14 9:18 ` Pretest? Juanma Barranquero
2007-03-14 9:32 ` Pretest? David Kastrup
2007-03-14 9:44 ` Pretest? Juanma Barranquero
2007-03-14 10:07 ` Pretest? David Kastrup
2007-03-14 10:17 ` Pretest? Juanma Barranquero
2007-03-14 13:56 ` Pretest? Chong Yidong
2007-03-14 14:24 ` Pretest? Stefan Monnier
2007-03-15 1:38 ` Pretest? Richard Stallman
2007-03-15 10:04 ` Pretest? Juanma Barranquero
2007-03-16 5:20 ` Pretest? Richard Stallman
2007-03-15 15:44 ` Pretest? Chong Yidong
2007-03-16 5:21 ` Pretest? Richard Stallman
2007-03-16 7:36 ` Pretest? David Kastrup
2007-02-26 2:39 Pretest? Nick Roberts
2007-02-26 7:19 ` Pretest? David Kastrup
2007-02-26 9:07 ` Pretest? Nick Roberts
2007-02-26 8:47 ` Pretest? Richard Stallman
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