I had essentially the same symptoms with an Adaptec 2840 (I believe
that is the correct model number). I did try a kernel compiled with
only the AIC7XXX SCSI support and had no change in symptom.
I tried the 1.3.1 disks and the hamm disks (the aic7xxx only kernel
disk was tried only with the hamm installation attempt). I did this
only over a weekend as the machine was needed for a Wind-blows task
and was unable to pursue the problem any further. I did try several
different hd's ranging from a very old Micropolis, only slightly
newer CDC, a reasonably new quantum, to a brand new Maxtor. Again,
with no change in symptoms.
Since Bob's experience is almost identical to mine, I see some
'comfort' in the idea that there probably IS a solution besides
replacing the scsi host adapter!
On Thu, May 07, 1998 at 02:12:13PM -0500, Nathan E Norman wrote:
> On Thu, 7 May 1998, Bob McGowan wrote:
>
[snip]
> : Initially, the kernel would find the 2740 cards, download "sequencer
> : code", reset the bus (3 times, once for each card), do a few other
> : things (qlogicisp probe and eata-dma probe) and panic with the message
> : "Encounterd spurious interrupt". I checked the EISA config for the
> : cards and found they were set to "level" trigger on the interrupts,
> : changed this to "edge" trigger. The kernel then reports 3 spurious
> : interrupts (1 per card, I presume), then aborts some scsi command due to
> : timeout, resets the scsi bus, then enter an endless loop timeing out and
> : resetting. The abort message is "aborting command due to timeout: pid0,
> : scsi0, channel0, id0, lun0 Test Unit Ready 00 00 00 00 00".
>
> Have you tried a rescue disk with a kernel that has ONLY AIC7XXX SCSI
> support? Most 2740s are pretty touchy about being probed by other
> drivers.
>
> I haven't used my 486 VLB w/2740 for a long time (new toys) but I can
> break it out of retirement to do some testing ..
>
> If you need a kernel compiled, let me know.
>
--
best,
-bill
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