>Number:         2285
>Category:       kern
>Synopsis:       Exabyte, non-media hardware failure
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Apr  1 13:35:05 1996
>Last-Modified:
>Originator:     Klaus Helbing
>Organization:
Physikalisches Institut, UNI Bonn
>Release:        1.1
>Environment:
System: NetBSD phop3.physik.uni-bonn.de 1.1 NetBSD 1.1 (PHOP4) #0: Wed Mar 6 19:37:00 MET 1996 helbing@phop4.physik.uni-bonn.de:/phop5/usr/src/sys/arch/i386/compile/PHOP4 i386


>Description:
	Every once in a while (i.e. no systematics has been found) I get the 
	following error message in /var/log/message when writing to 
	Exabyte:
Mar 27 02:09:19 phop5 /netbsd: st0(ahc0:4:0):  DELAYED ERROR, key = 0x4
Mar 27 02:09:19 phop5 /netbsd: st0(ahc0:4:0): non-media hardware failure, info = 65536 (decimal), data = 00 00 00 4b 08 02 00 00 00 05 8d 00 00 00 00 3b c7 c1 01 00 a5
Mar 27 02:09:19 phop5 /netbsd: st0(ahc0:4:0): non-media hardware failure, data = 00 00 00 4b 08 02 00 00 00 05 8d 00 00 00 00 3b c7 c1 01 00 a5
	Then the Exabyte is hung. If I try any mt-operations after that all I 
	get is I/O error. If I request the tape drive by hand (pressing the 
	eject button on the front) to release the tape it does after some 
	tries. If I then reinsert a tape without booting the system and try 
	to read it or to write to it, again after a while (:-)) the system 
	hangs without any hint or error message.
>How-To-Repeat:
	I tried it with several Exabytes 8500. They all show this.
>Fix:
	Badly needed.
>Audit-Trail:
>Unformatted: