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sgiwd93 multiple disk problem

To: linux-mips@oss.sgi.com
Subject: sgiwd93 multiple disk problem
From: Florian Lohoff <flo@rfc822.org>
Date: Tue, 3 Apr 2001 17:47:49 +0200
Organization: rfc822 - pure communication
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.3.15i
Hi,
i guess Ryan Murray has stumbled over the multiple disk problem
on one of my machines again - I would like to fix that bug if i am able to.

My first suspicion was garbled DMA transfers which might happen if starting
a new DMA transfer when thge last is still running. So i tried
to add this to 

drivers/scsi/sgiwd93.c:dma_setup

    105 
    106         if (hregs->ctrl & HPC3_SCTRL_ACTIVE)
    107                 BUG();
    108 

This doesnt seem to get triggered. 

Does anyone have another idea what happens ?

Flo
-- 
Florian Lohoff                  flo@rfc822.org             +49-5201-669912
     Why is it called "common sense" when nobody seems to have any?


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