From owner-freebsd-current@FreeBSD.ORG Tue Jun 7 16:08:40 2005 Return-Path: X-Original-To: freebsd-current@FreeBSD.org 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 86FBD16A41F for ; Tue, 7 Jun 2005 16:08:40 +0000 (GMT) (envelope-from daniel_k_eriksson@telia.com) Received: from pne-smtpout1-sn2.hy.skanova.net (pne-smtpout1-sn2.hy.skanova.net [81.228.8.83]) by mx1.FreeBSD.org (Postfix) with ESMTP id 11FDF43D5F for ; Tue, 7 Jun 2005 16:08:40 +0000 (GMT) (envelope-from daniel_k_eriksson@telia.com) Received: from sentinel (195.198.193.104) by pne-smtpout1-sn2.hy.skanova.net (7.2.059.6) id 429C5276001A6E92; Tue, 7 Jun 2005 18:08:39 +0200 From: "Daniel Eriksson" To: Date: Tue, 7 Jun 2005 18:08:35 +0200 Organization: Home Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.6353 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 Thread-Index: AcVrdj6ScSYqGvPmRNiyf5bu7dvD5wAAz1Mg In-Reply-To: <20050607153322.208B85D07@ptavv.es.net> Cc: Subject: RE: Livelock seen on current with threaded processes X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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, 07 Jun 2005 16:08:40 -0000 Kevin Oberman wrote: > Yes, it does sound similar. I was hoping that your thread > would lead to > a resolution of my problem. I can certainly believe that the > problem is > VM related. Unfortunately, I believe the work-around was to set > debug.mpsafevm to 1, but that didn't seem to help at my case at all. > > Am I remembering correctly? Not quite. Turning mpsafevm off prevented my machines from completely locking up, but they still entered a mostly useless state where simple commands such as 'ps' or 'ls' could take a minute or more to execute. However, since the complete lock-ups only happened when I provoked the machine (never during regular operation) I continued to run with mpsafevm enabled. I'm not in a position to test the 'dd' trick right now, but I'll try to do that later tonight to see if it still locks the machine up. /Daniel Eriksson