From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
To: "Jan Djärv" <jan.h.d@swipnet.se>
Cc: "Herbert J. Skuhra" <h.skuhra@gmail.com>, emacs-devel@gnu.org
Subject: Re: emacs-unicode-2 bootstrap on FreeBSD (temacs coredump)
Date: Wed, 01 Aug 2007 18:35:40 +0900 [thread overview]
Message-ID: <wlir7z8umr.wl%mituharu@math.s.chiba-u.ac.jp> (raw)
In-Reply-To: <46B0505A.9010208@swipnet.se>
>>>>> On Wed, 01 Aug 2007 11:20:26 +0200, Jan Djärv <jan.h.d@swipnet.se> said:
> YAMAMOTO Mitsuharu skrev:
>>
>> A comment in src/lib/libc/stdlib/malloc.c (FreeBSD Current) says:
>>
>> /* * Mutexes based on spinlocks. We can't use normal pthread
>> mutexes, because * they require malloc()ed memory. */
>>
>> So it seems to be impossible to make src/gmalloc.c thread-safe only
>> using pthread mutexes.
> Totally thread safe is impossible, but for Emacs we don't need that.
> It should be OK to initialize gmalloc in a non-thread safe way
> because it is done in main (or possibly before) before any threads
> are created.
I didn't mean the initialization problem with respect to pthread_once.
The followup report shows that there's another infinite recursion like
pthread_mutex_lock -> -> malloc -> -> pthread_mutex_lock -> ... when a
certain (statically initialized) mutex is used first.
YAMAMOTO Mitsuharu
mituharu@math.s.chiba-u.ac.jp
next prev parent reply other threads:[~2007-08-01 9:35 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-27 16:05 emacs-unicode-2 bootstrap on FreeBSD (temacs coredump) Damien Deville
2007-07-29 10:13 ` Jan Djärv
2007-07-31 19:09 ` Herbert J. Skuhra
2007-08-01 8:46 ` YAMAMOTO Mitsuharu
2007-08-01 9:20 ` Jan Djärv
2007-08-01 9:35 ` YAMAMOTO Mitsuharu [this message]
2007-08-01 10:07 ` YAMAMOTO Mitsuharu
2007-08-01 10:42 ` YAMAMOTO Mitsuharu
2007-08-01 11:53 ` Jan Djärv
2007-08-01 11:54 ` Jan Djärv
2007-08-01 14:38 ` Miles Bader
2007-08-01 18:27 ` Jan D.
2007-08-06 8:47 ` YAMAMOTO Mitsuharu
2007-08-06 10:04 ` YAMAMOTO Mitsuharu
2007-08-06 18:17 ` Herbert J. Skuhra
2007-08-06 21:09 ` Ryan Yeske
2007-08-07 8:05 ` Jan Djärv
2007-08-07 9:22 ` YAMAMOTO Mitsuharu
2007-08-01 11:52 ` Jan Djärv
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