From owner-freebsd-stable@FreeBSD.ORG Wed May 11 12:34:16 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 05E0616A4CE for ; Wed, 11 May 2005 12:34:16 +0000 (GMT) Received: from v00051.home.net.pl (post.pl [212.85.96.51]) by mx1.FreeBSD.org (Postfix) with SMTP id A8C5543D4C for ; Wed, 11 May 2005 12:34:14 +0000 (GMT) (envelope-from steve@post.pl) Received: from localhost (HELO ?10.0.1.232?) (steve.post@home@127.0.0.1) by matrix01.home.net.pl with SMTP; Wed, 11 May 2005 12:34:11 -0000 Message-ID: <4281FBC9.5040506@post.pl> Date: Wed, 11 May 2005 14:34:17 +0200 From: Steven Jurczyk User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: stable@FreeBSD.org Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit Subject: SCHED_ULE with SMP broke libpthread/libthr on 5.4-RELEASE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 May 2005 12:34:16 -0000 **Using SCHED_ULE on SMP/HT machine broke applications which use libpthread/libthr, probably at context switching between threads... The applications simply hang and they aren't killable (kill -9 don't work).. Usually this also break kernel shutdown (can't flush some inodes or blocks)... This is very big problem for people who want use mysql_server on SMP machines... On FreeBSD 5.4-RC3 this don't happend... Details at http://www.freebsd.org/cgi/query-pr.cgi?pr=threads/80887 -- best regards steve at home.pl