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Date:      Mon, 18 Dec 1995 23:42:03 -0500 (EST)
From:      Jason Wright <jason@oozoo.vnet.net>
To:        freebsd-questions@freebsd.org
Cc:        jason@oozoo.vnet.net (Jason Wright)
Subject:   reboots (SCSI)
Message-ID:  <199512190442.XAA07559@postgres95.vnet.net>

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I've been having the worst luck here of late using FreeBSD as a
file server.  The system is a 486dx/2-66, 32Mb of memory,
2 PCI Adaptec cards, 1 ISA (AHA1520), Std VGA.

The first (ahc0) PCI AHA card has 6 drives on it.
	sd0 -	st32550n (Seagate Hawk? 2Gb)
	sd1 - 	st15230n (Seagate Hawk 4Gb)
	sd2 -	st12550n (Seagate baracuda 2Gb)
	sd3 -	st42400n (Seagate Wren full-height 2Gb)
	sd4 -	st43400n (Seagate Wren full-height 3Gb)
	sd5 -	st41400n (Seagate Wren full-height 1Gb)

The second controller (ahc1) currently is empty, and the ISA card (aic0) has
a single 2Gb tape drive on it.

I've have been experiencing uptimes anywhere from 3 days to 4 hours (not
too good, eh?)

I've enclosed all of the messages prior to each reboot (today!).  By
just the looks of the first two, I'd guess that sd2 was flaking out
(it's well ventilated, I've heard the horror stories about Baracuda drives).
But, the third appears to be related to sd3.  After each there were some
messages about syncing the disks and 'automagic reboot in 15 seconds...'.

I'm almost at my wits end trying to solve this problem (and my Boss has
suggested SCO, please save me!).  Seriously, any help comments or ideas
would be greatly appreciated.

--Jason Wright
jason@oozoo.vnet.net

Reboot #1:
ahc0: target 2, lun 0 (sd2) timed out
sd2(ahc0:2:0): BUS DEVICE RESET message queued.
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #1. 3 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
panic: ahcintr: AWAITING_MSG for an SCB thatdoes not have a waiting message

Reboot #2:
ahc0: target 2, lun 0 (sd2) timed out
sd2(ahc0:2:0): BUS DEVICE RESET message queued.
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #3. 0 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
sd2(ahc0:2:0): BUS DEVICE RESET message queued.
ahc0: target 1, lun 0 (sd1) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 5, lun 0 (sd5) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 5, lun 0 (sd5) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 2, lun 0 (sd2) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted

Reboot #3:
ahc0: target 3, lun 0 (sd3) timed out
sd3(ahc0:3:0): BUS DEVICE RESET message queued.
ahc0: target 0, lun 0 (sd0) timed out
sd0(ahc0:0:0): BUS DEVICE RESET message queued.
ahc0: target 3, lun 0 (sd3) timed out
ahc0: Issued Channel A Bus Reset #3. 0 SCBs aborted
ahc0: target 1, lun 0 (sd1) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 4, lun 0 (sd4) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 1, lun 0 (sd1) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 1, lun 0 (sd1) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted
ahc0: target 1, lun 0 (sd1) timed out
ahc0: Issued Channel A Bus Reset #2. 0 SCBs aborted




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