On Tue, 28 Mar 2000, Danilo Godec wrote:
> Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Parity error during Message-In phase
> Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Parity error during Data-In phase.
That's a hardware problem. A SCSI parity error is reported by the
hardware and simply passed up the chain. Unless there is something
seriously wrong in the aic7xxx sequencer code, which I doubt, this looks
like a typical cabling and termination issue.
> Mar 28 12:00:45 mail kernel: scsi : aborting command due to timeout : pid 14301024,
>scsi0, channel 0, id 0, lun 0 Write (10) 00 00 6b 0f 14 00 00 08 00
>
> Then this (a lot of lines):
>
> Mar 28 12:00:45 mail kernel: SCSI host 0 abort (pid 14301062) timed out - resetting
> Mar 28 12:00:45 mail kernel: SCSI bus is being reset for host 0 channel 0.
The drive and controller have lost state synchronization. Once a parity
error has occurred, errors are normal and inevitable, leading up to a bus
reset to attempt to regain synchronization.
> Mar 28 12:00:45 mail kernel: SCSI host 0 reset (pid 14301061) timed out again -
> Mar 28 12:00:45 mail kernel: probably an unrecoverable SCSI bus or device hang.
>
> And finally this:
>
> Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Successfully completed Domain validation.
> Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Using asynchronous transfers.
> Mar 28 12:00:45 mail kernel: (scsi0:0:1:0) Synchronous at 80.0 Mbyte/sec, offse 31.
> Mar 28 12:00:45 mail kernel: (scsi0:0:0:0) Using asynchronous transfers.
Hard to say, but my guess is that your drive has elected to shut down. I
don't know what devices are on the bus, but the negotiation of aynchronous
transfers is not a good sign and it may indicated one of the lines is
being held in a funny state. Are you trying to run slow and fast devices
on the same SCSI bus?
> I'm asking if someone with more SCSI experience could diagnose what could
> be the cause of that?
I think you have an electrical issue.
> 19: 358370 359232 IO-APIC-level aic7xxx, aic7xxx
* * *
> 1400-14be : aic7xxx
> 1800-18be : aic7xxx
Are you really running two separate aic7xxx controllers? Do they have the
same firmware revision?
-- Mike
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