From owner-freebsd-stable@FreeBSD.ORG Fri Jan 27 11:10:34 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org 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 8F8CE16A420 for ; Fri, 27 Jan 2006 11:10:34 +0000 (GMT) (envelope-from hlh@restart.be) Received: from oola.is.scarlet.be (oola.is.scarlet.be [193.74.71.23]) by mx1.FreeBSD.org (Postfix) with ESMTP id 91A6643D49 for ; Fri, 27 Jan 2006 11:10:32 +0000 (GMT) (envelope-from hlh@restart.be) Received: from (ip-83-134-195-127.dsl.scarlet.be [83.134.195.127]) by oola.is.scarlet.be with ESMTP id k0RBANn23402; Fri, 27 Jan 2006 12:10:23 +0100 Received: from norquay.restart.bel (localhost.restart.bel [127.0.0.1]) by restart.be (8.13.5/8.13.5) with ESMTP id k0RBADcr021245; Fri, 27 Jan 2006 12:10:14 +0100 (CET) (envelope-from hlh@restart.be) DomainKey-Signature: a=rsa-sha1; s=norquay; d=restart.be; c=nofws; q=dns; h=received:x-authentication-warning:message-id:date:from:to: subject:references:in-reply-to:mime-version:content-type: content-disposition:content-transfer-encoding:user-agent:received-spf: x-spam-status:x-scanned-by; b=LKBuiJJ2thpuhmlmkjsmf+AZLRumAijrsOcfw8lZpoCpTQnaW0+C8Am8gjfBJ8XjM KkAwyfKiiJuVzQCaWlmkQ== Received: (from www@localhost) by norquay.restart.bel (8.13.5/8.13.4/Submit) id k0RBADfR021244; Fri, 27 Jan 2006 12:10:13 +0100 (CET) X-Authentication-Warning: norquay.restart.bel: www set sender to hlh@restart.be using -f Received: from ip-213-49-246-94.dsl.scarlet.be (ip-213-49-246-94.dsl.scarlet.be [213.49.246.94]) by webmail.restart.be (Horde MIME library) with HTTP; Fri, 27 Jan 2006 12:10:13 +0100 Message-ID: <20060127121013.ihvemzvjks0gw8k0@webmail.restart.be> Date: Fri, 27 Jan 2006 12:10:13 +0100 From: Henri Hennebert To: Kris Kennaway , Niki Denev , freebsd-stable@freebsd.org References: <200601202003.30336.nike_d@cytexbg.com> <43D79F09.7090505@cytexbg.com> <200601261040.49015.nike_d@cytexbg.com> <200601261707.56664.nike_d@cytexbg.com> <20060126161728.GA18234@xor.obsecurity.org> <43D95D2C.8010101@rogers.com> <20060126234422.GA26532@xor.obsecurity.org> <20060126234609.GA26648@xor.obsecurity.org> In-Reply-To: <20060126234609.GA26648@xor.obsecurity.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.0.4) Received-SPF: pass (norquay.restart.bel: localhost is always allowed.) X-Spam-Status: -1.44 (ALL_TRUSTED) X-Scanned-By: MIMEDefang 2.54 on 192.168.24.1 Cc: Subject: Re: diskio / filesystem related deadlock on SMP 6.0-STABLE machine. X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jan 2006 11:10:34 -0000 Quoting Kris Kennaway : > On Thu, Jan 26, 2006 at 06:44:22PM -0500, Kris Kennaway wrote: >> On Thu, Jan 26, 2006 at 06:37:16PM -0500, Mike Jakubik wrote: >> > Kris Kennaway wrote: >> > >On Thu, Jan 26, 2006 at 05:07:56PM +0200, Niki Denev wrote: >> > > >> > >>On Thursday 26 January 2006 10:40, Niki Denev wrote: >> > >> >> > >>[...] >> > >> >> > >>After i disabled option QUOTA in both my default kernel config >> > >>and the one i compiled with the debugging options i was unable >> > >>to reproduce the deadlock again. (i hope it stays that way :) ) >> > >>This, together with the report in my previous post probably point >> > >>that the problem is in the QUOTA support. >> > >> >> > > >> > >Actually, I think this is known. >> > > >> > >Kris >> > > >> > >> > Well thats good to know, i was planning on upgrading a production box >> > from 5 to 6, its SMP and uses QUOTA. How did 6 get released when QUOTA >> > was known to cause deadlocks? > > FYI, you can probably work around this by setting debug.mpsafevfs=0. > Of course, you'll lose the filesystem performance benefits. I encounter the same problem (kern/91631) and debug.mpsafevfs=0 don't solve the issue! I have to disable quota in etc/rc.conf.local and /etc/fstab to go around the problem (options QUOTA is still in my kernel config). The system is running for 6 days now and I cross my fingers... I intend to send a follow-up to the PR after 15 days of uptime. Henri > > Kris > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.