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Unlock the malloc() locks in the child process after fork(). This gives

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us working malloc in the fork child of the multithreaded process.

Although POSIX requires that only async-signal safe functions shall be
operable after fork in multithreaded process, not having malloc lower
the quality of our implementation.

Tested by:	rink
Discussed with:	kan, davidxu
Reviewed by:	kan
MFC after:	1 month
This commit is contained in:
Konstantin Belousov 2008-11-29 21:46:28 +00:00
parent 39bd58723a
commit e711c6f0d1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=185456
1 changed files with 1 additions and 0 deletions
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lib/libthr/thread/thr_fork.c
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@ -172,6 +172,7 @@ _fork(void)
if (unlock_malloc) { if (unlock_malloc) {
_rtld_atfork_post(rtld_locks); _rtld_atfork_post(rtld_locks);
_malloc_postfork();
} }
/* Run down atfork child handlers. */ /* Run down atfork child handlers. */