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Message-ID: <036201c15114$6779dd00$0200a8c0@lifelesswks>
From: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To: <cygwin AT cygwin DOT com>
References: <3BC38B93 DOT 11178 DOT 2FA66410 AT localhost>
Subject: Re: Perl 5.7.2
Date: Wed, 10 Oct 2001 08:47:18 +1000
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----- Original Message -----
From: "Gerrit P. Haase" <gp AT familiehaase DOT de>
To: <cygwin AT cygwin DOT com>
Sent: Wednesday, October 10, 2001 7:43 AM
Subject: Re: Perl 5.7.2


> John Peacock schrieb am 2001-10-09, 10:04:
>
> [ 11151] By: gsar                                  on 2001/07/05
00:42:49
>         Log: perl built with USE_ITHREADS can deadlock during fork()
or backticks
>              since it doesn't ensure threads other than the one
calling fork()
>              aren't holding any locks; the fix is to use
pthread_atfork() to
>              hold global locks
>
>              building perl with -Dusemymalloc exacerbates the problem
since
>              Perl_malloc() holds a mutex, and perl's exec() calls
New()
>
>              XXX the code in win32thread.h may be needed on platforms
that have
>              no pthread_atfork()
>      Branch: perl
>    ! perl.c thread.h win32/win32thread.h
>
> But they seem to be very 'old'.

Just a note: cygwin has a (AFAIK :} ) fully funciton pthread_atfork ().

Rob


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