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Date:      Mon, 11 May 1998 14:42:58 +0000
From:      "Greg Rowe" <greg@uswest.net>
To:        am@f1.ru, freebsd-stable@FreeBSD.ORG
Subject:   Re: SCSI problems?
Message-ID:  <9805111442.ZM18802@psv.oss.uswest.net>
In-Reply-To: Andrew Maltsev <am@px.f1.ru> "SCSI problems?" (May 10,  6:13pm)
References:  <199805101413.SAA01551@px.f1.ru>

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The 2940UW is revision E (rev 1) which won't handle any kind of load with the
current Adaptec code. We're going to test the CAM code with the Revision E's
this week to see if the problem still exists. (Verify this by running a number
of bonnie tests to be certain) You can either put a Revision D controller in
(rev 0) or drop the transfer rate in the SCSI setup to 10 MBS to fix the
problem.

Greg

On May 10,  6:13pm, Andrew Maltsev wrote:
> Subject: SCSI problems?
> I'd just done `make world' and upgraded the kernel to -stable (as of
> 9-May).
>
> Here is what I got near the and of booting:
>  sd0(ahc0:4:0): SCB 0x2 - timed out while idle, LASTPHASE == 0x1, SCSISIGI ==
0x0
>  SEQADDR = 0x8 SCSISEQ = 0x12 SSTAT0 = 0x0 SSTAT1 = 0xa
>  Ordered Tag queued
>  sd0(ahc0:4:0): SCB 0x1 timedout while recovery in progress
>  sd0(ahc0:4:0): SCB 0x0 timedout while recovery in progress
>  sd0(ahc0:4:0): SCB 0x2 - timed out while idle, LASTPHASE == 0x1, SCSISIGI ==
0x0
>  SEQADDR = 0x8 SCSISEQ = 0x12 SSTAT0 = 0x0 SSTAT1 = 0xa
>  sd0(ahc0:4:0): Queueing an Abort SCB
>  sd0(ahc0:4:0): Abort Message Sent
>  sd0(ahc0:4:0): SCB 2 - Abort Tag Completed.
>  sd0(ahc0:4:0): no longer in timeout
>  Ordered Tag sent
>
> I see no more such messages. Is it a problem?
>
> I'm using
> options AHC_TAGENABLE
> options AHC_SCBPAGING_ENABLE
> options AHC_ALLOW_MEMIO
> in my kernel.
>
> There are no IDE drives, only 2940UW adapter and two scsi devices
>  ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 1 int a irq 9 on pci0:9:0
>  ahc0: aic7880 Wide Channel, SCSI Id=7, 16/255 SCBs
>  (ahc0:2:0): "HP HP35480A T603" type 1 removable SCSI 2
>  st0(ahc0:2:0): Sequential-Access density code 0x13,  drive empty
>  ahc0: target 4 Tagged Queuing Device
>  (ahc0:4:0): "SEAGATE ST34572W 0876" type 0 fixed SCSI 2
>  sd0(ahc0:4:0): Direct-Access 4340MB (8888924 512 byte sectors)
>
> Btw, should I include BOUNCE_BUFFERS option if I have no ISA cards?
>
> Andrew.
>
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>-- End of excerpt from Andrew Maltsev



-- 
Greg Rowe <greg@uswest.net>   US WEST - !NTERACT Internet Services
 "To err is human, to really foul up requires the root password."

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