Date: Tue, 17 Feb 2004 19:49:50 -0500 (EST) From: Daniel Eischen <eischen@vigrid.com> To: Kris Gale <kris-fbsd@asn.net> Cc: freebsd-threads@freebsd.org Subject: Re: More on MySQL -- Fatal trap 12 Message-ID: <Pine.GSO.4.10.10402171948020.10917-100000@pcnet5.pcnet.com> In-Reply-To: <Pine.GSO.4.10.10402171926550.4193-100000@pcnet5.pcnet.com>
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On Tue, 17 Feb 2004, Daniel Eischen wrote:
> On Tue, 17 Feb 2004, Kris Gale wrote:
> > Does this look like a fixable problem with KSE
> > to anyone on this list?
>
> I would like to see how MySQL works when using process
> scope threads. Do you know enough to hack it to do that?
Alternatively, this patch to libpthread should force all
threads to be process scope.
--
Dan Eischen
Index: thread/thr_create.c
===================================================================
RCS file: /opt/FreeBSD/cvs/src/lib/libpthread/thread/thr_create.c,v
retrieving revision 1.53
diff -u -r1.53 thr_create.c
--- thread/thr_create.c 8 Jan 2004 15:37:09 -0000 1.53
+++ thread/thr_create.c 18 Feb 2004 00:45:48 -0000
@@ -128,6 +128,7 @@
new_thread->attr = _pthread_attr_default;
else {
new_thread->attr = *(*attr);
+ new_thread->attr &= ~PTHREAD_SCOPE_SYSTEM;
if ((*attr)->sched_inherit == PTHREAD_INHERIT_SCHED) {
/* inherit scheduling contention scop */
if (curthread->attr.flags &= PTHREAD_SCOPE_SYSTEM)
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