[9192] in linux-scsi channel archive
Re: Feature in ncr53c8xx/sym53c8xx driver
daemon@ATHENA.MIT.EDU (=?ISO-8859-1?Q?G=E9rard_Roudier?=)
Thu Jul 13 16:08:44 2000
Date: Thu, 13 Jul 2000 21:42:03 +0200 (CEST)
From: =?ISO-8859-1?Q?G=E9rard_Roudier?= <groudier@club-internet.fr>
To: Miquel van Smoorenburg <miquels@cistron.nl>
cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <8kl1pt$pv9$1@enterprise.cistron.net>
Message-ID: <Pine.LNX.4.10.10007132135290.2177-100000@linux.local>
MIME-Version: 1.0
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Miquel,
Could you please update your sym53c8xx driver version and let me know if
it makes differences.
If you read the linux-scsi list, you probably didn't miss my recent
posting that explained how old the [ncr/sym]53c8xx drivers are in
linux-2.2.X compared to latest drivers. If you missed my posting, let me
know and I will forward you it.
Regards,
Gérard.
On 13 Jul 2000, Miquel van Smoorenburg wrote:
> In article <cistron.13037D3EF290D211B95F00A0C9EBECC4AF71E3@tungsten.bri.hp.com>,
> Falkinder, David <davidf@bri.hp.com> wrote:
> > I think I may have a handle on some of the problems that have been
> >seen with the sym53c8xx and ncr53c8xx driver.
>
> What problems exactly? I tried to deploy quite a hefty new news server
> today, but after 5-15 minutes the sym53c8xx driver locked up (box still
> alive, but no more interrupts from both SCSI controller channels).
> (I just mailed Gerard Roudier about this).
>
> >So boiling it down, the core of the problem is that for SCSI 1 the LUN is
> >set in byte 1 (zero indexed CDB) for the Test Unit Ready and Request Sense
> >commands, where as these are reserved fields in SCSI 2 and 3 specs. A check
> >condition causes a request sense, which provides an infinite loop.
>
> Is that the driver locking up, or the on chip sequencer ? Would it
> make sense that both channels (scsi0 & scsi1) stoped working ?
>
> Mike.
>
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