From:	CRDGW2::CRDGW2::MRGATE::"SMTP::CRVAX.SRI.COM::RELAY-INFO-VAX" 29-SEP-1989 02:36
To:	MRGATE::"ARISIA::EVERHART"
Subj:	BACKUP patch

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Date: Thu, 28 Sep 89 22:57 PDT
From: CHRIS%gamera.usc.edu@usc.edu
Subject: BACKUP patch
To: Info-VAX%KL.SRI.COM@usc.edu, CHRIS@SKAT.USC.EDU
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A patch was distributed on this list some months ago which fixed a bug
in BACKUP in VMS 5.0 and 5.1.  This bug caused BACKUP to disable the
tape cache on devices which support that feature.  The bug still exists
in VMS 5.2, so I tracked down the new location resulting in the following
patch:

$patch sys$sysdevice:[vms$common.sysexe]backup
	insert/instruction 126b9='movl #40004, b^74(sp)'
	'bbc #15, b^4(sp), SKIP'
	'bicl #20000, b^4(sp)'
	'SKIP: nop'
	exit
	update

The previous addresses of this code were:
	insert/inst 109F5 = 'movl #40004, B^74(sp)'
and	insert/inst 10a05 = 'movl #40004, b^74(sp)'

Chris Ho, USC-UCS