[3007] in linux-scsi channel archive
Re: SCSI and SMP not getting along.
daemon@ATHENA.MIT.EDU (Jon Lewis)
Sun Dec 28 16:52:44 1997
Date: Sun, 28 Dec 1997 16:35:55 -0500 (EST)
From: Jon Lewis <jlewis@inorganic5.fdt.net>
To: "Leonard N. Zubkoff" <lnz@dandelion.com>
cc: bpavane@liii.com, linux-smp@vger.rutgers.edu, linux-scsi@vger.rutgers.edu
In-Reply-To: <199712282105.NAA16908@dandelion.com>
On Sun, 28 Dec 1997, Leonard N. Zubkoff wrote:
> I'd start first by building a uniprocessor kernel and get that to operate
> reliably. Micrpolis drives have often been problematic, and I suspect the
> 4743WS is no different. Last summer I tested a borrowed Tomahawk and it could
I call Micropolis 3.5" 7200RPM drives Micrapalots. I've had nothing but
trouble with them...RMA after RMA, they still don't work properly.
> Your best bet is to start by disabling tagged queuing by booting with the
> kernel command line "BusLogic=TQ:Disable" (be sure to compile the driver into
Another thing to try is force the Micropolis to operate in async mode
rather than sync. That appears to be helping with the 3243 I still have
in service...and it is still using TQ, though it's on a NCR 810.
I've got a dual P150 running just fine with a BT-948 and a couple of IBM
disks under 2.0.33-SMP.
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