From: Daniel Jacobowitz <drow@false.org>
To: Michael Snyder <msnyder@vmware.com>
Cc: Pedro Alves <pedro@codesourcery.com>,
"gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
Subject: Re: Fix foll-fork.exp foll-vfork.exp fork-child-threads.exp
Date: Mon, 01 Dec 2008 20:56:00 -0000 [thread overview]
Message-ID: <20081201205547.GA20007@caradoc.them.org> (raw)
In-Reply-To: <493433D7.7080803@vmware.com>
On Mon, Dec 01, 2008 at 10:58:31AM -0800, Michael Snyder wrote:
> I'm not sure if this change goes far enough.
> If a multi-threaded program forks, only the currently
> executing thread survives in the child. All others are
> left behind (and its not unlikely that the thread library
> is left in an inconsistant state, possibly leading to
> deadlocks).
If you use fork () rather than syscall (SYS_fork), the thread library
ought to clean up first; this is a POSIX supported functionality, I
believe. I know it works with glibc and on Solaris. Of course,
Solaris has rfork too which copies threads...
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2008-12-01 20:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-20 19:15 Pedro Alves
2008-11-20 23:52 ` Ulrich Weigand
2008-11-21 1:35 ` Pedro Alves
2008-11-21 1:49 ` Ulrich Weigand
2008-11-21 2:09 ` Pedro Alves
2008-11-21 11:40 ` Ulrich Weigand
2008-11-21 12:58 ` Pedro Alves
2008-12-01 19:01 ` Michael Snyder
2008-12-01 20:56 ` Daniel Jacobowitz [this message]
2008-12-01 22:36 ` Michael Snyder
2008-12-01 21:06 ` Pedro Alves
2008-12-01 22:38 ` Michael Snyder
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