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Date:      Tue, 14 Dec 1999 12:11:24 -0800
From:      Mike Smith <msmith@freebsd.org>
To:        Matthew Reimer <mreimer@vpop.net>
Cc:        freebsd-scsi@freebsd.org
Subject:   Re: Unexpected bus free & swap_pager: indefinite wait buffer 
Message-ID:  <199912142011.MAA00665@mass.cdrom.com>
In-Reply-To: Your message of "Tue, 14 Dec 1999 11:03:28 PST." <38569480.558FA790@vpop.net> 

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> We're running 3.3-stable from about 10/21/1999 on a machine that we
> haven't physically touched for about four months. It has a (supposedly
> good) LVD cable with a terminator at the end of the cable, that came
> with the Asus motherboard. Last night, the kernel started printing the
> errors below and the machine became unusable: couldn't login,
> unresponsive shells, though it did still respond to pings.
> 
> The blknos reported in the swap_pager message repeated in a cycle (e.g.,
> 8944, 328, 8944, 328...), and every now and then another blkno would be
> added to the cycle, until at the end (just before we hit the reset
> button) the cycle was
> 8944,328,2640,174968,44560,42848,40720,3208,512,3160. 
> 
> Are we losing a disk, or is it some kind of bug, or...?
> 
> Thanks in advance for any help you can offer.
> 
> Matt
> 
> Dec 13 17:35:00 merry /kernel: Unexpected busfree.  LASTPHASE == 0x40

This is indicative of a disk going away, either from a firmware bug or 
overheating.  Everything goes downhill from there (the command has been 
lost, and we don't recover well from that).

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com




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