From owner-freebsd-current@FreeBSD.ORG Tue Aug 24 12:15:01 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BD78016A4D0 for ; Tue, 24 Aug 2004 12:15:01 +0000 (GMT) Received: from imap.univie.ac.at (mailbox-lmtp.univie.ac.at [131.130.1.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id D1D8F43D41 for ; Tue, 24 Aug 2004 12:15:00 +0000 (GMT) (envelope-from le@FreeBSD.org) Received: from pcle2.cc.univie.ac.at (pcle2.cc.univie.ac.at [131.130.2.177]) by imap.univie.ac.at (8.12.10/8.12.10) with ESMTP id i7OCEqbi295642; Tue, 24 Aug 2004 14:14:54 +0200 Date: Tue, 24 Aug 2004 14:14:52 +0200 (CEST) From: Lukas Ertl To: Doug White In-Reply-To: <20040823134538.D3016@pcle2.cc.univie.ac.at> Message-ID: <20040824141238.K3016@pcle2.cc.univie.ac.at> References: <20040822115345.Y94593@carver.gumbysoft.com> <20040823134538.D3016@pcle2.cc.univie.ac.at> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-DCC-ZID-Univie-Metrics: mx7.univie.ac.at 4247; Body=2 Fuz1=2 Fuz2=2 cc: freebsd-current@FreeBSD.org Subject: Re: PLEASE TEST: IPI deadlock avoidance patch X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Aug 2004 12:15:01 -0000 On Mon, 23 Aug 2004, Lukas Ertl wrote: > On Sun, 22 Aug 2004, Doug White wrote: > >> If you have a reasonably fast i386 or amd64 multiprocessor and/or >> hyperthreading machine and are experiencing reproducible hangs during -j >> buildwords and other highly parallel operations, please try this patch: >> >> http://people.freebsd.org/~dwhite/smp_rv_mtx.patch > > Looks good here - several of my Xeon boxes that were subject to deadlocks > have survived -j4 buildworlds and other load situations with this patch. OK, it seems I shouted out too early. '-jX' buildworlds go fine, but my news server (heavy disk and network traffic) still locks up within one day of uptime. It's a Dual Xeon with HTT, SCHED_4BSD, ADAPTIVE_GIANT, and no WITNESS or INVARIANTS. cheers, le -- Lukas Ertl http://homepage.univie.ac.at/l.ertl/ le@FreeBSD.org http://people.freebsd.org/~le/