Re: 2..1.103 SCSI problems?
Doug Ledford (dledford@dialnet.net)
Thu, 04 Jun 1998 17:40:38 -0500
Mike Black wrote:
>
> OK...I've seen this twice now...2.1.103 has been up since May 21...
>
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0) Aborting scb 29, flags 0x4
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0:tag29) matches search criteria
> (scsi0:0:0:0:tag29)
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0) SCB found in QINFIFO and
> aborted.
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0) Aborting scb 29
> May 31 19:37:52 medusa kernel: (scsi0:-1:-1:-1) 1 commands found and queued
> for completion.
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0) Aborting scb 22, flags 0x4
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0) SCB is currently active.
> Waiting on completion.
> May 31 19:37:52 medusa kernel: (scsi0:0:0:0) Reset/Abort pending for this
> device, not wasting our time.
>
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0) Aborting scb 29, flags 0x4
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0:tag29) matches search criteria
> (scsi0:0:0:0:tag29)
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0) SCB found in QINFIFO and
> aborted.
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0) Aborting scb 29
> Jun 3 04:39:58 medusa kernel: (scsi0:-1:-1:-1) 1 commands found and queued
> for completion.
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0) Aborting scb 15, flags 0x4
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0) SCB is currently active.
> Waiting on completion.
> Jun 3 04:39:58 medusa kernel: (scsi0:0:0:0) Reset/Abort pending for this
> device, not wasting our time.
>
> Does this mean the disk is going, SCSI bug, or is it some other problem?
>From the logs you posted, it looks like simply periods of heavy activity
where the drive actually got far enough behind to cause a couple of commands
to time out. However, it also looks like we never really did any sort of
recovery action, we just let the current command complete, which it did
shortly there after, and the system kept right on goign. I would just make
sure you have tagged queueing enabled on your disk, that might actually help
with these scenarios. Check out /usr/src/linux/drivers/scsi/README.aic7xxx
for info on how to enable tagged queueing on this device.
--
Doug Ledford <dledford@dialnet.net>
Opinions expressed are my own, but
they should be everybody's.
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