From owner-freebsd-current@FreeBSD.ORG Sat May 26 10:21:09 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0998516A469 for ; Sat, 26 May 2007 10:21:09 +0000 (UTC) (envelope-from joao.barros@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.171]) by mx1.freebsd.org (Postfix) with ESMTP id 5DB5413C44C for ; Sat, 26 May 2007 10:21:08 +0000 (UTC) (envelope-from joao.barros@gmail.com) Received: by ug-out-1314.google.com with SMTP id u2so498639uge for ; Sat, 26 May 2007 03:21:07 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=SpwTPtY3tfvzssvMqNETAxlsqEYcvgCBKQ9U6RJbfWy8o76BgGyXt49ju9DwfZ7Ur6zTRhS1sacHVVIXQiUGiLyZNr0ScMJgArNdF5QSytHyhi9gucgWkAskkJ6RPQncKTi5qNCsD7IuHcHmOEf7iG2ImSi6gt/I2ON8/1c7Ulw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=rjqAGemb+4McvtzxrWEXUVVxk3KFc9QZfRLD3ueyGl3WdjPlJyespdr6sRAFyXbxOmSOYNakJHu8r/T1QH82+SQLJTiHWRAe+hVRCgv27YjgxjkYhQy4vB9TY9dTvNWGCOp1C2P0sWIJcohPKMl2m/b5KGEEdgvevZAbwwUI2vQ= Received: by 10.78.204.7 with SMTP id b7mr1153245hug.1180174866706; Sat, 26 May 2007 03:21:06 -0700 (PDT) Received: by 10.78.190.11 with HTTP; Sat, 26 May 2007 03:21:06 -0700 (PDT) Message-ID: <70e8236f0705260321i3ee8b15fo189d265a23a3e5e@mail.gmail.com> Date: Sat, 26 May 2007 11:21:06 +0100 From: "Joao Barros" To: "Bjoern A. Zeeb" In-Reply-To: <20070526100322.N13311@maildrop.int.zabbadoz.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <70e8236f0705260236x527b0484m96bc77ae51d8b287@mail.gmail.com> <20070526100322.N13311@maildrop.int.zabbadoz.net> Cc: freebsd-fs@freebsd.org, freebsd-current , Pawel Jakub Dawidek Subject: Re: ZFS: LOR in dbuf.c 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: Sat, 26 May 2007 10:21:09 -0000 On 5/26/07, Bjoern A. Zeeb wrote: > On Sat, 26 May 2007, Joao Barros wrote: > > > Hi Pawel, > > > > I upgraded my sources last night (just before your 2 commits) and now > > I get this constant LOR every 5 seconds: > > > > lock order reversal: > > 1st 0xc7b90c20 zfs:&dr->dt.di.dr_mtx (zfs:&dr->dt.di.dr_mtx) @ > > /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1866 > > 2nd 0xc48e17e4 zfs:&db->db_mtx (zfs:&db->db_mtx) @ > > /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1888 > > please check http://sources.zabbadoz.net/freebsd/lor.html and follow > the instruction there. Read to the end of the page. > > -- > Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT > I swear I checked your page before sending the email, but didn't actually searched the page, just browsed to the end and looked for dbuf.c Just to note that the way this LOR is happening now (5 seconds recurrent) didn't happen before , with sources from May 26. I had some occasional LORs but never this like this, that's the reason I went looking for a recent (last) LOR on your page :) -- Joao Barros