From owner-freebsd-hackers@FreeBSD.ORG Thu Sep 1 22:03:10 2005 Return-Path: X-Original-To: freebsd-hackers@FreeBSD.org Delivered-To: freebsd-hackers@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A973316A48C; Thu, 1 Sep 2005 22:03:10 +0000 (GMT) (envelope-from SRS0=0g9gYpqP=XD=metro.cx=fbsd@sonologic.nl) Received: from mx1.sonologic.nl (mx1.sonologic.nl [82.94.245.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1B9D243D45; Thu, 1 Sep 2005 22:03:09 +0000 (GMT) (envelope-from SRS0=0g9gYpqP=XD=metro.cx=fbsd@sonologic.nl) Received: from [192.168.3.31] ([212.41.157.237]) (authenticated bits=0) by mx1.sonologic.nl (8.13.3/8.13.3) with ESMTP id j81M2xgr041953; Thu, 1 Sep 2005 22:03:04 GMT Message-ID: <43177AD3.7070308@metro.cx> Date: Fri, 02 Sep 2005 00:04:03 +0200 From: Koen Martens Organization: Sonologic User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050317 Thunderbird/1.0.2 Mnenhy/0.7.2.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: John Baldwin References: <4317340E.2050208@metro.cx> <200509011348.50159.jhb@FreeBSD.org> In-Reply-To: <200509011348.50159.jhb@FreeBSD.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Helo-Milter-Authen: gmc@sonologic.nl, fbsd@metro.cx, mx1 Received-SPF: pass (mx1.sonologic.nl: 212.41.157.237 is authenticated by a trusted mechanism) Cc: freebsd-hackers@FreeBSD.org Subject: Re: panic in propagate_priority w/ postgresql under heavy load X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2005 22:03:11 -0000 John Baldwin wrote: > On Thursday 01 September 2005 01:02 pm, Koen Martens wrote: > >>I've had a little chat with neologism on ircnet/#freebsd about this >>already, and done as he suggested: compile a debug kernel to obtain >>a stack trace. > > Can you reproduce it with a kernel that has INVARIANTS and INVARIANT_SUPPORT > on? I see that you had WITNESS on, can you check to see if there were any > witness messages about sleepign with non-sleepable locks held before the > crash? I will do this when I get back. I did a grep -i on witness in the console log but this did not turn up anything suspicious (exact output pasted below). Also, i checked again the logs right before the crashes, nothing special output to console before the Kernel trap 12.. voltaire# grep -i witness yin.log WARNING: WITNESS option enabled, expect reduced performance. witness_get: witness exhausted WARNING: WITNESS option enabled, expect reduced performance. witness_get: witness exhausted Gr, Koen -- K.F.J. Martens, Sonologic, http://www.sonologic.nl/ Networking, hosting, embedded systems, unix, artificial intelligence. Public PGP key: http://www.metro.cx/pubkey-gmc.asc Wondering about the funny attachment your mail program can't read? Visit http://www.openpgp.org/