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    SubjectRe: [PATCH] 0/3: Fix EH problems in libsas and implement more error handling
    On Tue, Oct 31, 2006 at 10:10:45AM -0800, Darrick J. Wong wrote:
    > Muli Ben-Yehuda wrote:
    >
    > > I'm still seeing this on my x366 with the V17 sequencer firmware (with
    > > the old Razor sequencer it happens as well, but rarely).
    > >
    > > aic94xx: escb_tasklet_complete: REQ_TASK_ABORT, reason=0x6
    > > aic94xx: tmf tasklet complete
    > > aic94xx: tmf resp tasklet
    > > aic94xx: tmf came back
    > > aic94xx: task not done, clearing nexus
    > > aic94xx: asd_clear_nexus_tag: PRE
    > > aic94xx: asd_clear_nexus_tag: POST
    > > aic94xx: asd_clear_nexus_tag: clear nexus posted, waiting...
    > > aic94xx: task 0xffff81015ee59580 done with opcode 0x23 resp 0x0 stat 0x8d but aborted by upper layer!
    > > aic94xx: asd_clear_nexus_tasklet_complete: here
    > > aic94xx: asd_clear_nexus_tasklet_complete: opcode: 0x0
    > > aic94xx: came back from clear nexus
    > > aic94xx: task 0xffff81015ee59580 aborted, res: 0x0
    > > sas: command 0xffff8100e2afcb00, task 0xffff81015ee59580, aborted by initiator: EH_NOT_HANDLED
    > > sas: Enter sas_scsi_recover_host
    > > sas: going over list...
    > > sas: trying to find task 0xffff81015ee59580
    > > sas: sas_scsi_find_task: task 0xffff81015ee59580 already aborted
    > > sas: sas_scsi_recover_host: task 0xffff81015ee59580 is aborted
    > > sas: --- Exit sas_scsi_recover_host
    >
    > Yes, the patch doesn't eliminate these errors; it merely does something
    > more intelligent with the error code than "Sit around and wait for
    > everything to time out"... despite the scary error messages, it looks
    > like it's doing the right thing. However, it'd be useful to have
    > timestamps on the printks to know for sure.

    Ok, I'll re-run with printk timestamps.

    > > aic94xx: escb_tasklet_complete: REQ_TASK_ABORT, reason=0x5
    >
    > Break recv'd... that's a new one.
    >
    > > sas: DOING DISCOVERY on port 0, pid:1105
    > > scsi 0:0:0:0: Direct-Access IBM-ESXS ST936701SS F B512 PQ: 0 ANSI: 4
    >
    > Hrm, you might want to update your disks to the latest firmware levels
    > (B51C)... be wary that the firmware updates occasionally nuke everything
    > on the drive. :(

    Pointers to the updated firmware and how to update it?

    Cheers,
    Muli


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