From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758890AbXGIB7t (ORCPT ); Sun, 8 Jul 2007 21:59:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757431AbXGIB7m (ORCPT ); Sun, 8 Jul 2007 21:59:42 -0400 Received: from smtp110.mail.mud.yahoo.com ([209.191.85.220]:25503 "HELO smtp110.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757305AbXGIB7l (ORCPT ); Sun, 8 Jul 2007 21:59:41 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=KKnBrsVD+tT2LrWAucuvOM8MBXGm0fbdXMYkVr4J44goqYgE4W9yqZY36XxksgP/tnYejzXca+geU9X9BRKaijRUGpiUkLOHRTyQptUgpZuZ5JqZEFnjlUsrmyRmohhH05uQ0XcNYgx+U7oopsMHzdW5kWOKFaaRNObY3HB5mDs= ; X-YMail-OSG: DZ1843YVM1mHM4LT2OXNgyAjOwnBruPbbyaEYjuiHizhoBAcRNKMpwzbgFqcfS164P7X7wA2BDpueC73TqFqOvjFr9McLxpx0EeNr9pfvucTk6mawAE- Message-ID: <46919688.1050005@yahoo.com.au> Date: Mon, 09 Jul 2007 11:59:36 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Michal Piotrowski CC: Flavio Curti , linux-kernel@vger.kernel.org, Jens Axboe Subject: Re: panics with 16port Promise Supertrack EX Controller References: <20070708225246.GD16285@no-way.org> <6bffcb0e0707081620pf4afd46re9e74e18518b352a@mail.gmail.com> In-Reply-To: <6bffcb0e0707081620pf4afd46re9e74e18518b352a@mail.gmail.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Michal Piotrowski wrote: > Hi Flavio, > > On 09/07/07, Flavio Curti wrote: > >> Hello >> >> I have a problem with a server running 2.6.22rc4. > > > Jul 8 00:19:13 dorade.cyberlink.ch EFLAGS: 00210046 > (2.6.22-rc7-dorade #1) > > Is this a regression? > >> The machine panics >> after some days of running fine, the machine inst heavy loaded. >> >> The Controller detects as stex device: >> >> scsi0 : stex >> scsi 0:0:0:0: Direct-Access Promise 1X2 Mirror 1.10 PQ: 0 ANSI: 3 >> scsi 0:0:2:0: Direct-Access Promise 12+2 Disk RAID6 1.10 PQ: 0 ANSI: 3 >> scsi 0:0:16:0: Processor Promise RAID Console 1.00 PQ: 0 ANSI: 3 >> sd 0:0:0:0: [sda] 976642048 512-byte hardware sectors (500041 MB) >> sd 0:0:0:0: [sda] Write Protect is off >> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't >> support DPO or FUA >> sd 0:0:0:0: [sda] 976642048 512-byte hardware sectors (500041 MB) >> sd 0:0:0:0: [sda] Write Protect is off >> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't >> support DPO or FUA >> sda: sda1 sda2 >> sd 0:0:0:0: [sda] Attached SCSI disk >> sd 0:0:2:0: [sdb] Very big device. Trying to use READ CAPACITY(16). >> sd 0:0:2:0: [sdb] 11719704576 512-byte hardware sectors (6000489 MB) >> sd 0:0:2:0: [sdb] Write Protect is off >> sd 0:0:2:0: [sdb] Write cache: enabled, read cache: enabled, doesn't >> support DPO or FUA >> sd 0:0:2:0: [sdb] Very big device. Trying to use READ CAPACITY(16). >> sd 0:0:2:0: [sdb] 11719704576 512-byte hardware sectors (6000489 MB) >> sd 0:0:2:0: [sdb] Write Protect is off >> sd 0:0:2:0: [sdb] Write cache: enabled, read cache: enabled, doesn't >> support DPO or FUA >> sdb: sdb1 >> sd 0:0:2:0: [sdb] Attached SCSI disk >> sd 0:0:0:0: Attached scsi generic sg0 type 0 >> sd 0:0:2:0: Attached scsi generic sg1 type 0 >> scsi 0:0:16:0: Attached scsi generic sg2 type 3 >> >> Im not sure where the problem is (controller/lvm/ext3), so if anyone has >> an idea, Im happy to try it out... > > > kernel BUG at block/as-iosched.c:1084! > > BUG_ON(RB_EMPTY_ROOT(&ad->sort_list[REQ_ASYNC])); Could be a bug in the driver that just happens to be caught by AS checks. If you could test another scheduler (boot with elevator=deadline or elevator=cfq), it might help give us an idea. -- SUSE Labs, Novell Inc.