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Date:      Thu, 21 Jan 1999 01:02:51 +0100
From:      Bernd Walter <ticso@cicely.de>
To:        "Kenneth D. Merry" <ken@plutotech.com>
Cc:        roberto@keltia.freenix.fr, freebsd-scsi@FreeBSD.ORG
Subject:   Re: Disk dying (Conner CFP and Tagged Queueing Probs)
Message-ID:  <19990121010251.60150@cicely.de>
In-Reply-To: <199901201811.LAA43529@panzer.plutotech.com>; from Kenneth D. Merry on Wed, Jan 20, 1999 at 11:11:36AM -0700
References:  <19990120084908.52849@cicely.de> <199901201811.LAA43529@panzer.plutotech.com>

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On Wed, Jan 20, 1999 at 11:11:36AM -0700, Kenneth D. Merry wrote:
> Bernd Walter wrote...
> > On Tue, Jan 19, 1999 at 11:14:09PM -0700, Kenneth D. Merry wrote:
> > > Greg Lehey wrote...
> > > > On Tuesday, 19 January 1999 at 22:53:47 -0700, Kenneth D. Merry wrote:
> > > > > Umm, it's a kernel printf.  Does it show up in your dmesg info?  Does your
> > > > > dmesg info show up in the logs?  Did you disable the printf?
> > > > 
> > > > (blush) I've just followed up on a mod I've had in my source tree for
> > > > some time, and which I would have forgotten about if my cvs update
> > > > logs didn't keep reminding me.  I find:
> > > 
> > > Now we're getting somewhere.  It may be that we can crank the tags down to
> > > 8 instead of disabling tagged queueing altogether.
> > > 
> > I will check if my drive can handle 8 tags.
> > 
> > da0 at ahc0 bus 0 target 1 lun 0
> > da0: <CONNER CFP1080S 3939> Fixed Direct Access SCSI2 device 
> > da0: 10.0MB/s transfers (10.0MHz, offset 15)
> > da0: 1030MB (2110812 512 byte sectors: 64H 32S/T 1030C)
> > 
> > With a little luck I can check 3 other CFP1080S drives on thursday.
> 
> Ollivier Robert's drive has the exact same firmware revision as yours, and
> seems to work just fine without a quirk entry.
> 
> What happens if you don't have a quirk entry, and then really pound on your
> drive?
Dec  6 20:03:31 cicely7 /kernel: (da0:ahc0:0:1:0): tagged openings now 32
Dec  6 20:03:47 cicely7 /kernel: ahc0:A:1: no active SCB for reconnecting target - issuing BUS DEVICE RESET
Dec  6 20:03:48 cicely7 /kernel: SAVED_TCL == 0x10, ARG_1 == 0x20, SEQ_FLAGS == 0x40
Dec  6 20:03:48 cicely7 /kernel: ahc0: Bus Device Reset on A:1. 32 SCBs aborted
Dec  6 20:03:48 cicely7 /kernel: (da0:ahc0:0:1:0): tagged openings now 32
Dec  6 20:03:48 cicely7 /kernel: (da0:ahc0:0:1:0): tagged openings now 31

I saw it nearly every time after the "tagged openings now 32" message

> 
> Ken
> -- 
> Kenneth Merry
> ken@plutotech.com

-- 
  B.Walter


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