From owner-freebsd-current@FreeBSD.ORG Tue Nov 23 19:20:09 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 0B6AF16A4CF for ; Tue, 23 Nov 2004 19:20:09 +0000 (GMT) Received: from mail5.speakeasy.net (mail5.speakeasy.net [216.254.0.205]) by mx1.FreeBSD.org (Postfix) with ESMTP id B437B43D5E for ; Tue, 23 Nov 2004 19:20:08 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 17497 invoked from network); 23 Nov 2004 19:20:08 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 23 Nov 2004 19:20:08 -0000 Received: from [10.50.41.235] (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id iANJJnrU036800; Tue, 23 Nov 2004 14:20:04 -0500 (EST) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: freebsd-current@FreeBSD.org Date: Tue, 23 Nov 2004 11:36:49 -0500 User-Agent: KMail/1.6.2 References: <20041122143804.GA36649@peter.osted.lan> <200411221657.36659.jhb@FreeBSD.org> <20041123011307.GA38559@peter.osted.lan> In-Reply-To: <20041123011307.GA38559@peter.osted.lan> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200411231136.49362.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: current@FreeBSD.org cc: phk@FreeBSD.org Subject: Re: panic: sleeping thread owns a non-sleepable lock 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, 23 Nov 2004 19:20:09 -0000 On Monday 22 November 2004 08:13 pm, Peter Holm wrote: > On Mon, Nov 22, 2004 at 04:57:36PM -0500, John Baldwin wrote: > > On Monday 22 November 2004 09:38 am, Peter Holm wrote: > > > During stress test with GENERIC HEAD from Nov 20 08:40 UTC I got: > > > Sleeping on "fdesc" with the following non-sleepable locks held: > > > exclusive sleep mutex fdesc r = 0 (0xc08d15a0) locked @ > > > kern/kern_descrip.c:2425 and then > > > panic: sleeping thread (pid 92279) owns a non-sleepable lock > > > > > > http://www.holm.cc/stress/log/cons89.html > > > > Yes, the panic is a result of the earlier warning. Poul-Henning touched > > this code last, so it is probably something for him to look at. I'm > > unsure how msleep() is getting called, however. The turnstile panic is > > not important, can you find the thread that went to sleep (should be pid > > 92279) and get stack trace for that? > > The ddb trace is in the log, just before call doadump. Let me know if you > need any gdb output. Ok, can you use gdb to get the source/file of 'sysctl_kern_file+0x1ae'? -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org