Exabyte crashes SUN servers

Tue Aug 29 06:51:54 AEST 1989

I've been using my Exabytes on my SUN 3/280's and had very few problems so
far.  Recently, however, I've gotten the same error on two different SUN
servers.  This causes my SUNs to crash and reboot.  I was wondering
whether you've seen these errors on your systems.  Our servers are running
SUN OS 4.0.3

Here are the errors:
=================
Aug 23 13:43
1407  bcr= 0  tcr= 0x4
	cbsr= 0x7c (MSG IN)  cdr= 0x80  mr= 0x2  bsr= 0x0
	target= 0, lun= 0    DMA addr= 0x0  count= 0 (0)
	cdb=    0  0  0  0  0  0
si0:  si_reconnect: can't find dis unit: target 4 lun 0
  disconnect queue:
si$d:  siintr:  reconnection failure
si0:  resetting scsi bus
	last phase= 0x86 (Reconnect MSG)
	csr= 0x1407  bcr= 0  tcr= 0x4
	cbsr= 0x7c (MSG IN)  cdr= 0x80  mr= 0x2  bsr= 0x0
	target= 0, lun= 0    DMA addr= 0x0  count= 0 (0)
	cdb=    0  0  0  0  0  0
....
Above lines repeated a bunch of times
....
si0:  resetting scsi bus
	last phase= 0x86 (Reconnect MSG)
	csr= 0x1407  bcr= 0  tcr= 0x4
	cbsr= 0x7c (MSG IN)  cdr= 0x80  mr= 0x2  bsr= 0x0
	target= 0, lun= 0    DMA addr= 0x0  count= 0 (0)
	cdb=    0  0  0  0  0  0
sd1 at si0 slave 1
sd2 at si0 slave 8
sd3 at si0 slave 9
sd4 at si0 slave 16
sd6 at si0 slave 24
zs0 at obio 0x20000 pri 3 
zs1 at obio 0x0 pri 3 
ie0 at obio 0xc0000 pri 3 
bwtwo0 at obmem 0xff000000 pri 4 
bwtwo0: resolution 1152 x 900
root on xy0a fstype 4.2
swap on xy0b fstype spec size 26800K
dump on xy0b fstype spec
SunOS Release 4.0.3 (GENERIC) #1: Tue Aug 1 19:45:02 EDT 1989
Copyright (c) 1989 by Sun Microsystems, Inc.
mem = 16384K (0x1000000)
avail mem = 15360000
Ethernet address = 8:0:20:1:97:d8
xyc0 at vme16d16 0xee40 vec 0x48 
xy0 at xyc0 slave 0
xy0: <Fujitsu-M2361 Eagle cyl 840 alt 2 hd 20 sec 67>
xy1 at xyc0 slave 1
xy1: <Fujitsu-M2361 Eagle cyl 840 alt 2 hd 20 sec 67>
xyc1 at vme16d16 0xee48 vec 0x49 
xy2 at xyc1 slave 0
xy2: <Fujitsu-M2361 Eagle cyl 840 alt 2 hd 20 sec 67>
xy3 at xyc1 slave 1
xy3: <Fujitsu-M2361 Eagle cyl 840 alt 2 hd 20 sec 67>
si0 at vme24d16 0x200000 vec 0x40 
st0 at si0 slave 32
st1 at si0 slave 40
sd0 at si0 slave 0
sd1 at si0 slave 1
sd2 at si0 slave 8
sd3 at si0 slave 9
sd4 at si0 slave 16
sd6 at si0 slave 24
zs0 at obio 0x20000 pri 3 
zs1 at obio 0x0 pri 3 
ie0 at obio 0xc0000 pri 3 
bwtwo0 at obmem 0xff000000 pri 4 
bwtwo0: resolution 1152 x 900
root on xy0a fstype 4.2
swap on xy0b fstype spec size 26800K
dump on xy0b fstype spec
mt: 
trap address 0x8, pid 4546, pc = f087010, sr = 2314, stkfmt b, context 2
Bus Error Reg 80<INVALID>
data fault address 38 faultc 0 faultb 0 dfault 1 rw 1 size 1 fcode 5
KERNEL MODE
page map 0 pmgrp 49
D0-D7  0 13 4 0 0 f0f7268 2000 ffffffff
A0-A7  f0871ae f0f7566 0 f0f7268 f0f7560 f0f74c0 ffff95d8 ffff95ac
Begin traceback...fp = ffff95d8, sp = ffff95ac
Called from f0835ca, fp=ffff9608, args=f0f74c0 2000 f0f7268 f0c2210
Called from f083414, fp=ffff9624, args=f0c21e4 2200 f0f74d8 f0c21e4
Called from f0868bc, fp=ffff964c, args=f0f74c0 49 2000 0
Called from f0866f8, fp=ffff9670, args=f0f74d8 18 0 1200
Called from f086052, fp=ffff969c, args=1200 85 0 0
Called from f04932a, fp=ffff96c4, args=1200 1 ffff96c0 1
Called from f040f5e, fp=ffff9728, args=ffff9724 1 f29f488 0
Called from f03fdb4, fp=ffff9754, args=effff7e 0 1 f60
Called from f03fd32, fp=ffff976c, args=effff7e 1 effff60 ffff9a18
Called from f01c084, fp=ffff9780, args=ffff9a18 0 ffff97b4 ffff97a8
Called from f06ceaa, fp=ffff97a8, args=ffff9a18 20170 effff88 effff88
Called from f004768, fp=effff34, args=5 0 fffffffc 4
End traceback...
panic: Bus error
syncing file systems... [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] done

dumping to vp f137c74, offset 20864
SunOS Release 4.0.3 (GENERIC) #1: Tue Aug 1 19:45:02 EDT 1989
Copyright (c) 1989 by Sun Microsystems, Inc.
mem = 16384K (0x1000000)

...etc, etc.

I talked to both SUN and Exabyte about getting these tape drives
working on our machines.  (By the way, these Exabytes are packaged
by Delta Microsystems.) SUN said that they are not currently
supporting this device.  Exabyte denied all knowledge of SUN
making their device working on their computers.

We are using these tape drives daily, but the above errors show
up once in a while.

Ferenc Horvath                 |INTERNET:       ferenc at bellcore.com
Bellcore                       |UUCP:           bellcore!ferenc
444 Hoes La room 1H217         |PHONE:          (201) 699-5731 [work]
Piscataway, NJ 08854-4182      |