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Date:      Fri, 28 May 1999 10:52:11 -0400 (EDT)
From:      "Joe \"Marcus\" Clarke" <marcus@miami.edu>
To:        freebsd-stable@freebsd.org
Cc:        freebsd-smp@freebsd.org
Subject:   SMP and SCSI problems in 3.2
Message-ID:  <Pine.OSF.4.05.9905272133100.16404-200000@jaguar.ir.miami.edu>

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--0-1540417999-927903131=:21904
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Recently, we installed 3.2-RELEASE on our primary Computer Science server,
and began to see some severe errors when trying to do intensive (i.e.
dump/restore) disk operations to any of our SCSI-attached disks.  The
errors we are getting are as follows:

(da0:ahc0:0:0:0): SCB 0x29 - timed out while idle, LASTPHASE == 0x1,
SEQADDR ==
0x8
(da0:ahc0:0:0:0): Queuing a BDR SCB
(da0:ahc0:0:0:0): Bus Device Reset Message Sent
(da0:ahc0:0:0:0): no longer in timeout, status = 34c
ahc0: Bus Devices Reset on A:0.  3 SCBs aborted

Disabling SMP seems to clear up some of this, but we were hoping to get
SMP and SCSI working together.  Our SCSI card is an Adaptec 2940UW2.
Attached is the kernel config file in use.  If this seems like a
termination problem, we're doubting it since we had this working with an
early version of 3.0-SNAP with CAM.

Joe Clarke



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