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List: freebsd-scsi
Subject: Re: SCSI Problems with sym and Western Digital on FreeBSD 4.7-stable
From: Chuck McCrobie <mccrobie2000 () yahoo ! com>
Date: 2002-12-30 22:56:07
[Download RAW message or body]
--- "Justin T. Gibbs" <gibbs@scsiguy.com> wrote:
> > On Fri, 27 Dec 2002, Chuck McCrobie wrote:
> >> I am having SCSI problems with the sym driver and
> a
> >> Western Digital hard disk. Under the -stable
> kernel
> >> built on 'Dec 1', the drive show up fine with
> 16-bit
> >> wide transfers at 40 MHz. Under the most recent
> >> -stable kernel built on 'Dec 17', the Western
> Digital
> >> gets some type of very weird error message. The
> >> Western Digital is "da1".
> >
> >> (probe2:sym0:0:2:0): ODD transfer in DATA IN
> phase.
> >> (probe2:sym0:0:2:0): COMMAND FAILED (87 0 10).
> >> (probe2:sym0:0:2:0): ODD transfer in DATA IN
> phase.
> >> (probe2:sym0:0:2:0): COMMAND FAILED (87 0 10).
> >> (probe2:sym0:0:2:0): ODD transfer in DATA IN
> phase.
> >> (probe2:sym0:0:2:0): COMMAND FAILED (87 0 10).
> >> (probe2:sym0:0:2:0): ODD transfer in DATA IN
> phase.
> >> (probe2:sym0:0:2:0): COMMAND FAILED (87 0 10).
> >> (probe2:sym0:0:2:0): ODD transfer in DATA IN
> phase.
> >> (probe2:sym0:0:2:0): COMMAND FAILED (87 0 10).
> >
> > These appear to be the problem. Since nothing has
> changed in sym(4) for a
> > long time, this has to be elsewhere, perhaps in
> dma system.
>
> My guess is that the WD guys didn't set their
> additional inquiry
> length correctly and/or the length is correct, but
> they fail to
> issue an ignore wide residue for the last transfer.
> The problem
> only shows up now because we properly calculate the
> extra inquiry
> length. Perhaps we should do what Gerard suggested
> and round up
> to an even transfer size.
>
> --
> Justin
>
>
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message
What would I see on a SCSI bus analyzer in terms of
"issue an ignore wide residue" message? Maybe I'll
have to break out the SCSI spec. and the bus
analyzer...
Chuck McCrobie
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