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Date:      Sun, 17 May 1998 00:52:14 -0600 (MDT)
From:      "Justin T. Gibbs" <gibbs@narnia.plutotech.com>
To:        The Hermit Hacker <scrappy@hub.org>
Cc:        scsi@FreeBSD.ORG
Subject:   Re: Atrocious transfer rates...
Message-ID:  <199805170652.AAA01616@narnia.plutotech.com>
In-Reply-To: <Pine.BSF.3.96.980516192345.580K-100000@thelab.hub.org>

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> 	Basically, it describes the problem (under Linux, at least) as:
> 
> "The LED-light indicating SCSI activity on the computer front shines
> constantly for about 30 secs, goes out for about 10 secs after which the
> SCSI bus appears to be reset (my CD ROM-drive is activated momentarily)
> and I can use the system again. "
> 	- http://confused.ume.maine.edu/~aic7xxx/aic7xxx/4988.html
> 
> 	Now, I'm curious, but assuming that this is a bus hang (even with
> the CAM drivers in place), why isn't the system able to recover?
> 
> 	The report is based on the same drive as mine, including Rev...

The bug in the L912 firmware causes the drive to spaz and never
release the bus.  If the drive wedges and fails to respond to a
bus reset, there isn't anything that the OS can do other than
possibly ask the operator to power cycle the device.

Upgrade your firmware already...

--
Justin

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