Subject: Re: problems with ahc vs. format command
To: Izumi Tsutsui <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 06/13/2001 17:42:37
On Thu, Jun 14, 2001 at 12:36:22AM +0900, Izumi Tsutsui wrote:
> In article <20010612165810.A563@antioche.lip6.fr>
> email@example.com writes:
> > OK, so it's possible that this command doesn't work with tagged queueing.
> Now I've tried scsictl format command with pcscp
> (which uses MI ncr53c9x) on i386 with the following drive:
> sd0 at scsibus0 target 0 lun 0: <IBM, DPES-31080, S31Q> SCSI2 0/direct fixed
> sd0: 1034 MB, 4903 cyl, 4 head, 108 sec, 512 bytes/sect x 2118144 sectors
> sd0: sync (100.0ns offset 15), 8-bit (10.000MB/s) transfers, tagged queueing
> then I got the following timeout.
> sd0(pcscp0:0:0:0): pcscp0: timed out [ecb 0xc0775000 (flags 0x1, dleft 0, stat 0)], <state 2, nexus 0xc0775000, phase(l 12, c 100, p 3), resid 0, msg(q 0,o 40) DMA active>
> sd0(pcscp0:0:0:0): sync negotiation disabled
> sd0(pcscp0:0:0:0): pcscp0: timed out [ecb 0xc0775000 (flags 0x141, dleft 0, stat 0)], <state 1, nexus 0x0, phase(l 10, c 100, p 7), resid 0, msg(q 0,o 40) > AGAIN
> pcscp0: SCSI bus reset
> But after fixing overflow of callout args in ncr53c9x.c,
> the format command seems to work properly.
> (sorry I don't have ahc adapters)
Well, maybe not all drives like tagged queuing for the format command.
Manuel Bouyer, LIP6, Universite Paris VI. Manuel.Bouyer@lip6.fr