Date: Mon, 1 Jul 1996 18:12:31 -0700 (PDT) From: Tom Samplonius <tom@sdf.com> To: Rich Murphey <rich@rich.isdn.bcm.tmc.edu> Cc: stable@freebsd.org Subject: Re: Problem with 1542 and ZIP drive Message-ID: <Pine.NEB.3.93.960701181150.215B-100000@misery.sdf.com> In-Reply-To: <199607011345.IAA01387@richc.isdn.bcm.tmc.edu>
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On Mon, 1 Jul 1996, Rich Murphey wrote:
> |From: Tom Samplonius <tom@sdf.com>
> | I'm having problems accessing a ZIP drive under FreeBSD-stable, using a
> |1542 controller. As soon as I generate some significant disk activity,
> |the following happens:
> |
> |Jun 30 14:40:22 misery /kernel: sd0(aha0:5:0): timed out
> |Jun 30 14:40:22 misery /kernel: adapter not taking commands.. frozen?!
> |Jun 30 14:40:22 misery /kernel: Debugger("aha1542") called.
> |Jun 30 14:40:23 misery /kernel: AGAIN
> |Jun 30 14:40:23 misery /kernel: aha0: MBO 02 and not 00 (free)
>
> I have an old, flakey SCSI-1 connor drive hooked to a
> 1542 that generates these exact error messages. I
> trigger or test it by dumping the filesystem on the
> affected drive.
>
> I believe that the drive's controller freezes when it
> hits an unrecoverable error in the media --- the error
> messages go away when I swap it out for an identical
> drive. Rich
>
It turns out that it only happened on writes over 32k.
Getting a replacement drive seems to have fixed the problem, and seems
to be much faster too.
Tom
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