Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753387AbZIIOyn (ORCPT ); Wed, 9 Sep 2009 10:54:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752328AbZIIOyn (ORCPT ); Wed, 9 Sep 2009 10:54:43 -0400 Received: from mail-qy0-f181.google.com ([209.85.221.181]:64403 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752122AbZIIOym (ORCPT ); Wed, 9 Sep 2009 10:54:42 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=dCeRZcV1tqwVji5albMjpkBvyKLPRJSdeHioWIz8zUBBnpUnUeSEdCWt/Veifwr9xM vvkebq/QvJA9iQCbTt8MTstP44wBOBY9zCKxqzde95VtN3Zd3/8G+Kg9bMJe64PL5aDc 4A5lrcGDR3B17cRHj4vANH0mCKsS4cSGCip7U= Message-ID: <4AA7C1B2.7080804@gmail.com> Date: Wed, 09 Sep 2009 10:54:42 -0400 From: Glenn Elliott User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: "Desai, Kashyap" CC: "linux-kernel@vger.kernel.org" , "tglx@linutronix.de" , DL-MPT Fusion Linux , Bjoern Brandenburg Subject: Re: 2.6.31-rc8 + patch-2.6.31-rc8-rt9 = oops in mptsas References: <4AA14523.7070405@gmail.com> <0D1E8821739E724A86F4D16902CE275C1C8EAE092F@inbmail01.lsi.com> <4AA6C4F5.7050306@gmail.com> <0D1E8821739E724A86F4D16902CE275C1C8EAE0C0D@inbmail01.lsi.com> In-Reply-To: <0D1E8821739E724A86F4D16902CE275C1C8EAE0C0D@inbmail01.lsi.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6604 Lines: 152 Desai, Kashyap wrote: > Glenn, > > After applying patch > http://marc.info/?l=linux-scsi&m=125187353611068&w=2 > > my understanding is Opps will not be same. Is it correct? > > I have taken some imp snaps from you Opps message as below. > > .flush_workqueue+0x68/0xb8 > >> [c0000007fde23500] [c00000000030c320] >> .mptsas_cleanup_fw_event_q+0x128/0x154 >> [c0000007fde235b0] [c00000000030c650] .mptsas_ioc_reset+0x98/0xe0 >> [c0000007fde23640] [c0000000002f9610] .mpt_signal_reset+0x94/0xb4 >> [c0000007fde236c0] [c0000000003018e4] .mpt_do_ioc_recovery+0x15ec/0x16e8 >> [c0000007fde23890] [c000000000301ad8] .mpt_HardResetHandler+0xf8/0x19c >> > > > > flush_workqueue() will not be called from mptsas_ioc_reset as it was happening without the patch. > > Please add more details if I am guessing wrong. > > Thanks, > Kashyap > > > -----Original Message----- > From: Glenn Elliott [mailto:arakageeta.lkml@gmail.com] > Sent: Wednesday, September 09, 2009 2:26 AM > To: Desai, Kashyap > Cc: linux-kernel@vger.kernel.org; tglx@linutronix.de; DL-MPT Fusion Linux; Bjoern Brandenburg > Subject: Re: 2.6.31-rc8 + patch-2.6.31-rc8-rt9 = oops in mptsas > > Desai, Kashyap wrote: > >> Glenn, >> >> There is one fix in same area recently posted to upstream. >> Can you try applying this patch? >> >> http://marc.info/?l=linux-scsi&m=125187353611068&w=2 >> >> Thanks, >> Kashyap >> >> -----Original Message----- >> From: Glenn Elliott [mailto:arakageeta.lkml@gmail.com] >> Sent: Friday, September 04, 2009 10:20 PM >> To: linux-kernel@vger.kernel.org >> Cc: tglx@linutronix.de; DL-MPT Fusion Linux; Bjoern Brandenburg >> Subject: 2.6.31-rc8 + patch-2.6.31-rc8-rt9 = oops in mptsas >> >> Hello, >> >> I get an oops when I boot 2.6.31-rc8 with the Realtime Preempt patch, >> patch-2.6.31-rc8-rt9, on my IBM QS22 (Cell Blade-- PPC-based). It >> appears to be happening somewhere in the SAS disk related driver, mptsas. >> >> The unpatched 2.6.31-rc8 boots without issue. I am using the >> cell_defconfig configuration with the same minor additions (IPv6, >> auditing, etc.) for both patched and unpatched kernels. The RT-patched >> configuration also includes the necessary RT-related settings. >> >> Below is the captured oops, with a little extra logging, from the serial >> console (it didn't make it to /var/log/messages). I would be happy to >> provide any additional information. >> >> Thank you, >> Glenn Elliott >> >> mptscsih: ioc0: attempting task abort! (sc=c0000007fdd02080) >> sd 0:0:0:0: CDB: cdb[0]=0x1a: 1a 00 08 00 04 00 >> mptscsih: ioc0: WARNING - Issuing Reset from mptscsih_IssueTaskMgmt!! >> mptbase: ioc0: Initiating recovery >> mptscsih: ioc0: task abort: SUCCESS (sc=c0000007fdd02080) >> mptscsih: ioc0: attempting task abort! (sc=c0000007fdd02080) >> sd 0:0:0:0: CDB: cdb[0]=0x0: 00 00 00 00 00 00 >> mptbase: ioc0: WARNING - Issuing Reset from mpt_config!! >> mptbase: ioc0: Initiating recovery >> mptscsih: ioc0: WARNING - Issuing Reset from mptscsih_IssueTaskMgmt!! >> mptscsih: ioc0: task abort: SUCCESS (sc=c0000007fdd02080) >> mptscsih: ioc0: attempting target reset! (sc=c0000007fdd02080) >> sd 0:0:0:0: CDB: cdb[0]=0x1a: 1a 00 08 00 04 00 >> mptscsih: ioc0: WARNING - TaskMgmt type=3: ioc_state: DOORBELL_ACTIVE >> (0x2c000000)! >> mptscsih: ioc0: target reset: FAILED (sc=c0000007fdd02080) >> mptscsih: ioc0: attempting bus reset! (sc=c0000007fdd02080) >> sd 0:0:0:0: CDB: cdb[0]=0x1a: 1a 00 08 00 04 00 >> mptscsih: ioc0: WARNING - TaskMgmt type=4: ioc_state: DOORBELL_ACTIVE >> (0x2c000000)! >> mptscsih: ioc0: bus reset: FAILED (sc=c0000007fdd02080) >> mptscsih: ioc0: attempting host reset! (sc=c0000007fdd02080) >> mptscsih: ioc0: host reset: SUCCESS (sc=c0000007fdd02080) >> ------------[ cut here ]------------ >> Badness at kernel/workqueue.c:372 >> NIP: c000000000086a04 LR: c000000000087cac CTR: c00000000030c5b8 >> REGS: c0000007fde230f0 TRAP: 0700 Not tainted (2.6.31-rc8-rt9) >> MSR: 9000000000029032 CR: 44022024 XER: 20000000 >> TASK = c0000007fa3e5c50[2606] 'mpt/0' THREAD: c0000007fde20000 CPU: 2 >> GPR00: 0000000000000001 c0000007fde23370 c0000000006992b0 c0000003fdde0c80 >> GPR04: 0000000000000000 0000000000000000 000000000000000a c0000003fe0ce114 >> GPR08: 0000000000000000 c0000007fa3e5c50 c00000000044ebb0 0000000000000000 >> GPR12: 0000000000000000 c000000000722a00 0000000000000000 0000000000000004 >> GPR16: c0000003fe0ce998 c0000003fe0ce968 0000000000000000 0000000000000000 >> GPR20: 0000000000000001 0000000000000000 c0000003fe0ce108 0000000000000001 >> GPR24: 0000000000000000 0000000000000001 c0000003fe0ce100 c0000003fe0ce720 >> GPR28: c0000003fddf4000 c0000003fdde0c80 c000000000640080 0000000000000000 >> NIP [c000000000086a04] .flush_cpu_workqueue+0x2c/0xa4 >> LR [c000000000087cac] .flush_workqueue+0x68/0xb8 >> Call Trace: >> [c0000007fde23370] [0000000000200200] 0x200200 (unreliable) >> [c0000007fde23470] [c000000000087cac] .flush_workqueue+0x68/0xb8 >> [c0000007fde23500] [c00000000030c320] >> .mptsas_cleanup_fw_event_q+0x128/0x154 >> [c0000007fde235b0] [c00000000030c650] .mptsas_ioc_reset+0x98/0xe0 >> [c0000007fde23640] [c0000000002f9610] .mpt_signal_reset+0x94/0xb4 >> [c0000007fde236c0] [c0000000003018e4] .mpt_do_ioc_recovery+0x15ec/0x16e8 >> [c0000007fde23890] [c000000000301ad8] .mpt_HardResetHandler+0xf8/0x19c >> [c0000007fde23930] [c00000000030215c] .mpt_config+0x3d4/0x470 >> [c0000007fde23a30] [c0000000002ffd28] .mpt_findImVolumes+0xd0/0x6a0 >> [c0000007fde23c00] [c00000000030dacc] >> .mptsas_firmware_event_work+0x74/0x109c >> [c0000007fde23d90] [c0000000000876e8] .worker_thread+0x20c/0x2e0 >> [c0000007fde23ea0] [c00000000008cb88] .kthread+0xa8/0xb4 >> [c0000007fde23f90] [c000000000025b68] .kernel_thread+0x54/0x70 >> Instruction dump: >> 4bfffe34 fba1ffe8 7c0802a6 f8010010 7c7d1b78 fbe1fff8 f821ff01 e80d01b0 >> e92300a0 7c004a78 7c000074 7800d182 <0b000000> 48395349 60000000 38bd0038 >> >> > Thank you for your suggestion, Kashyap, but it does not appear to help. > The system still hangs on boot. Is there any other information I can > gather that may be helpful? > > -Glenn > I will try to get more information. The system is touchy-- I rarely get an oops message. In fact, I've posted the only one that I've received. I have booted my system many times and, so far, it simply hangs. Thank you, Glenn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/