Path: utzoo!utgpu!watmath!clyde!att!rutgers!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: monty%tartarus@gargoyle.uchicago.edu (Monty BSD)
Newsgroups: comp.sys.sun
Subject: problems with cpio
Message-ID: <8811201915.AA00858@tartarus.uchicago.edu>
Date: 1 Dec 88 09:59:39 GMT
Sender: usenet@rice.edu
Organization: Rice University, Houston, Texas
Lines: 18
Approved: Sun-Spots@rice.edu
Original-Date: Sun, 20 Nov 88 13:15:17 198
X-Sun-Spots-Digest: Volume 7, Issue 31, message 3 of 19

we've been having a problem with cpio and our tape drive.  when we run
cpio with the -B option (5120 blocksize), we get the messages:

	vmunix: xt0: lost interrupt
	vmunix: xt0: bad command synchronization

and cpio aborts.  its takes a while for these messages to appear; cpio
starts out working fine, but eventually bombs.  the problem only occurs
with the -B option.  sun came to look at the problem and, before we had
isolated the -B option as the cause, thought that it was a bad controller,
but replacing it didn't solve the problem.  has anyone seen this problem
before ?  is it a bug in cpio ?  we're running sunOS 4.0 on a 4/280S with
a fujitsu GCR 9 track drive on a Xylogics 472 controller.

thanks in advance,
   monty
   univ of chicago/biological sciences division
   internet: monty@tartarus.uchicago.edu