Date: Thu, 3 Mar 2005 12:29:07 +0530 From: "Andriy Tkachuk" <andrit@ukr.net> To: <threads@freebsd.org> Subject: Re: patch for threads/76690 - critical - fork hang in child for -lc_r Message-ID: <001a01c51fbe$81472d60$090210ac@BORJA> References: <Pine.GSO.4.43.0503021042310.26125-100000@sea.ntplx.net>
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This is a multi-part message in MIME format. ------=_NextPart_000_0017_01C51FEC.980DEEC0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit > This is already fixed in libpthread in both -current and -stable. > Your patch also pollutes the application namespace with a global > symbol thread_lock -- there is already a symbol in malloc.c that > is there just for this purpose (__malloc_lock). yea, i see - you right. i just didn't noticed that this one is already without static. thanks. Ok, now the libc don't changed, and updated patch see in attachment. Thanks, Andriy. ------=_NextPart_000_0017_01C51FEC.980DEEC0 Content-Type: application/octet-stream; name="libc_r-76690pr.patch" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="libc_r-76690pr.patch" diff -r -u lib/libc_r/uthread/uthread_fork.c = lib.patched/libc_r/uthread/uthread_fork.c=0A= --- lib/libc_r/uthread/uthread_fork.c Fri Dec 10 09:06:45 2004=0A= +++ lib.patched/libc_r/uthread/uthread_fork.c Thu Mar 3 12:17:01 2005=0A= @@ -62,6 +62,9 @@=0A= =0A= _pthread_mutex_lock(&_atfork_mutex);=0A= =0A= + extern spinlock_t *__malloc_lock;=0A= + _SPINLOCK(__malloc_lock);=0A= +=0A= /* Run down atfork prepare handlers. */=0A= TAILQ_FOREACH_REVERSE(af, &_atfork_list, atfork_head, qe) {=0A= if (af->prepare !=3D NULL)=0A= @@ -70,6 +73,8 @@=0A= =0A= /* Fork a new process: */=0A= if ((ret =3D __sys_fork()) !=3D 0) {=0A= + _SPINUNLOCK(__malloc_lock);=0A= +=0A= /* Run down atfork parent handlers. */=0A= TAILQ_FOREACH(af, &_atfork_list, qe) {=0A= if (af->parent !=3D NULL)=0A= @@ -78,6 +83,8 @@=0A= _pthread_mutex_unlock(&_atfork_mutex);=0A= =0A= } else {=0A= + _SPINUNLOCK(__malloc_lock);=0A= +=0A= /* Close the pthread kernel pipe: */=0A= __sys_close(_thread_kern_pipe[0]);=0A= __sys_close(_thread_kern_pipe[1]);=0A= ------=_NextPart_000_0017_01C51FEC.980DEEC0--
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