Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754897Ab0LDLwY (ORCPT ); Sat, 4 Dec 2010 06:52:24 -0500 Received: from tomasu.net ([64.85.170.234]:50469 "EHLO mail.tomasu.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753332Ab0LDLwW (ORCPT ); Sat, 4 Dec 2010 06:52:22 -0500 From: Thomas Fjellstrom Reply-To: thomas@fjellstrom.ca To: "jack_wang" Subject: Re: mvsas errors in 2.6.36 Date: Sat, 4 Dec 2010 04:52:04 -0700 User-Agent: KMail/1.13.5 (Linux/2.6.36.1+; KDE/4.5.2; x86_64; svn-1188918; 2010-10-21) Cc: "David Milburn" , "Andre Tomt" , "Linux Kernel List" , "linux-scsi" References: <201010290650.32892.thomas@fjellstrom.ca> <4CF95394.7010400@redhat.com> <201012041550372348573@usish.com> In-Reply-To: <201012041550372348573@usish.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201012040452.04587.thomas@fjellstrom.ca> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6088 Lines: 103 On December 4, 2010, jack_wang wrote: > Hi, I've done as you requested. > here's all of the output from the first (and currently only) event: > [ 1428.000080] sas: command 0xffff880184ed1680, task 0xffff88017a0f2680, timed out: BLK_EH_NOT_HANDLED > [ 1428.080051] sas: command 0xffff880224e03880, task 0xffff88017a0f24c0, timed out: BLK_EH_NOT_HANDLED > [ 1428.080077] sas: Enter sas_scsi_recover_host > [ 1428.080085] sas: trying to find task 0xffff88017a0f2680 > [ 1428.080092] sas: sas_scsi_find_task: aborting task 0xffff88017a0f2680 > [ 1428.080102] drivers/scsi/mvsas/mv_sas.c 1703:<7>mv_abort_task() mvi=ffff880224040000 task=ffff88017a0f2680 slot=ffff880224066680 slot_idx=x4 > [ 1428.080113] sas: sas_scsi_find_task: querying task 0xffff88017a0f2680 > [ 1428.080119] drivers/scsi/mvsas/mv_sas.c 1632:mvs_query_task:rc= 5 > [ 1428.080125] sas: sas_scsi_find_task: task 0xffff88017a0f2680 failed to abort > [ 1428.080130] sas: task 0xffff88017a0f2680 is not at LU: I_T recover > [ 1428.080135] sas: I_T nexus reset for dev 0000000000000000 > [ 1428.080172] drivers/scsi/mvsas/mv_sas.c 2083:port 0 ctrl sts=0x89800. > [ 1428.080180] drivers/scsi/mvsas/mv_sas.c 2085:Port 0 irq sts = 0x1001 > [ 1428.080193] drivers/scsi/mvsas/mv_sas.c 2111:phy0 Unplug Notice > [ 1428.090228] drivers/scsi/mvsas/mv_sas.c 2083:port 0 ctrl sts=0x199800. > [ 1428.090236] drivers/scsi/mvsas/mv_sas.c 2085:Port 0 irq sts = 0x1081 > [ 1428.111954] drivers/scsi/mvsas/mv_sas.c 2083:port 0 ctrl sts=0x199800. > [ 1428.111962] drivers/scsi/mvsas/mv_sas.c 2085:Port 0 irq sts = 0x10000 > [ 1428.111969] drivers/scsi/mvsas/mv_sas.c 2138:notify plug in on phy[0] > [ 1428.146351] drivers/scsi/mvsas/mv_sas.c 1224:port 0 attach dev info is 20004 > [ 1428.146351] drivers/scsi/mvsas/mv_sas.c 1226:port 0 attach sas addr is 0 > [ 1428.222044] drivers/scsi/mvsas/mv_sas.c 378:phy 0 byte dmaded. > [ 1428.222109] sas: sas_form_port: phy0 belongs to port0 already(1)! > [ 1430.300028] drivers/scsi/mvsas/mv_sas.c 1586:mvs_I_T_nexus_reset for device[0]:rc= 0 > [ 1430.300040] sas: I_T 0000000000000000 recovered > [ 1430.300048] sas: sas_ata_task_done: SAS error 8d > [ 1430.300059] ata9: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ 0xb/00/00 > [ 1430.300883] ata9.00: device reported invalid CHS sector 0 > [ 1430.300888] ata9: status=0x01 { Error } > [ 1430.300894] ata9: error=0x04 { DriveStatusError } > [ 1430.300950] sas: trying to find task 0xffff88017a0f24c0 > [ 1430.300956] sas: sas_scsi_find_task: aborting task 0xffff88017a0f24c0 > [ 1430.300963] sas: sas_scsi_find_task: task 0xffff88017a0f24c0 is done > [ 1430.300968] sas: sas_eh_handle_sas_errors: task 0xffff88017a0f24c0 is done > [ 1430.300974] sas: sas_ata_task_done: SAS error 8d > [ 1430.300982] ata12: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ 0xb/00/00 > [ 1430.301777] ata12.00: device reported invalid CHS sector 0 > [ 1430.301782] ata12: status=0x01 { Error } > [ 1430.301788] ata12: error=0x04 { DriveStatusError } > [ 1430.301808] sas: --- Exit sas_scsi_recover_host > Thanks. > > [Jack] The error shows that there are two commands have no respounse utill the timer timeout, and scsi host enter error hander > to quary and abort task but all failed so try to reset the device . > > I look into mvs_abort_task in mv_sas.c, > if (SATA_DEV == dev->dev_type) { > struct mvs_slot_info *slot = task->lldd_task; > struct task_status_struct *tstat; > u32 slot_idx = (u32)(slot - mvi->slot_info); > tstat = &task->task_status; > mv_dprintk(KERN_DEBUG "mv_abort_task() mvi=%p task=%p " > "slot=%p slot_idx=x%x\n", > mvi, task, slot, slot_idx); > tstat->stat = SAS_ABORTED_TASK; > if (mvi_dev && mvi_dev->running_req) > mvi_dev->running_req--; > if (sas_protocol_ata(task->task_proto)) > mvs_free_reg_set(mvi, mvi_dev); > mvs_slot_task_free(mvi, task, slot, slot_idx); > return -1; > //// here the return -1 looks suspicuse , you can remove it to have a try > > > [Jack] Sorry, please try to use return 0 to see if help. Here is what I get with that returning 0 rather than -1 as you requested: [19107.040031] sas: command 0xffff88011c77f9c0, task 0xffff88022ae51600, timed out: BLK_EH_NOT_HANDLED [19107.040062] sas: Enter sas_scsi_recover_host [19107.040072] sas: trying to find task 0xffff88022ae51600 [19107.040079] sas: sas_scsi_find_task: aborting task 0xffff88022ae51600 [19107.040089] drivers/scsi/mvsas/mv_sas.c 1703:<7>mv_abort_task() mvi=ffff880224040000 task=ffff88022ae51600 slot=ffff880224066680 slot_idx=x4 [19107.040101] sas: sas_scsi_find_task: task 0xffff88022ae51600 is aborted [19107.040107] sas: sas_eh_handle_sas_errors: task 0xffff88022ae51600 is aborted [19107.040113] sas: sas_ata_task_done: SAS error 8d [19107.040124] ata21: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ 0xb/00/00 [19107.040860] ata21: status=0x01 { Error } [19107.040866] ata21: error=0x04 { DriveStatusError } [19107.040886] sas: --- Exit sas_scsi_recover_host [19318.000085] sas: command 0xffff8801250291c0, task 0xffff88018a8e5b80, timed out: BLK_EH_NOT_HANDLED [19318.000125] sas: Enter sas_scsi_recover_host [19318.000135] sas: trying to find task 0xffff88018a8e5b80 [19318.000141] sas: sas_scsi_find_task: aborting task 0xffff88018a8e5b80 [19318.000152] drivers/scsi/mvsas/mv_sas.c 1703:<7>mv_abort_task() mvi=ffff880224040000 task=ffff88018a8e5b80 slot=ffff8802240666d8 slot_idx=x5 [19318.000163] sas: sas_scsi_find_task: task 0xffff88018a8e5b80 is aborted [19318.000169] sas: sas_eh_handle_sas_errors: task 0xffff88018a8e5b80 is aborted [19318.000175] sas: sas_ata_task_done: SAS error 8d [19318.000185] ata24: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ 0xb/00/00 [19318.000896] ata24: status=0x01 { Error } [19318.000902] ata24: error=0x04 { DriveStatusError } [19318.000922] sas: --- Exit sas_scsi_recover_host -- Thomas Fjellstrom thomas@fjellstrom.ca -- 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/