From:	CSBVAX::CSBVAX::MRGATE::"SMTP::CRVAX.SRI.COM::RELAY-INFO-VAX"  4-NOV-1988 15:14
To:	MRGATE::"ARISIA::EVERHART"
Subj:	XADRIVER is broken in VMS 5


Received: From KL.SRI.COM by CRVAX.SRI.COM with TCP; Fri,  4 NOV 88 02:26:39 PDT
Received: from Sun.COM by KL.SRI.COM with TCP; Fri, 4 Nov 88 02:13:36 PST
Received: from sun.Sun.COM (sun-bb.sun.com) by Sun.COM (4.0/SMI-4.0)
	id AA09297; Fri, 4 Nov 88 02:11:01 PST
Received: from sequent.UUCP by sun.Sun.COM (4.0/SMI-4.0)
	id AA13749; Fri, 4 Nov 88 02:13:39 PST
Received: by sybil.ARPA (4.12/4.7)
	id AA04026; Thu, 3 Nov 88 23:43:49 est
Date: Thu, 3 Nov 88 23:43:49 est
From: sequent!sybil!ardai@Sun.COM (Mike Ardai)
Message-Id: <8811040443.AA04026@sybil.ARPA>
To: sequent!sun!kl.sri.com!info-vax@Sun.COM
Subject: XADRIVER is broken in VMS 5

Thanks to all who responded.  According to DEC, there is a known bug
in XADRIVER which is causing these timeouts.  This bug is in 5.0, 5.0-1,
and (I think) 5.0-2.  It is supposed to be fixed in a 'future release'
(probably/hopefully 5.0-3).  In the meantime, it is very easy to fix
if you don't mind hacking the driver.


* Copy SYS$EXAMPLES:XADRIVER.MAR to a working directory

* Find the DEVICELOCK macro, and change PRESERVE=NO to PRESERVE=YES
  in the line above MNEGW   UCB$L_XA_DPR(R5),XA_WCR(R4)

* Re-assemble the driver with
  MACRO /LIS/OBJ XADRIVER+SYS$LIBRARY:LIB/LIB

* Create a file called BASE_ZERO.OPT containng the line
  BASE=0
 
* Link the driver with
  LINK/NOSYSSHR/NOTRACE/NODEBUG/CONTIG/MAP=XADRIVER/FULL/CROSS -
  XADRIVER, SYS$SYSTEM:SYS.STB/SELECTIVE,BASE_ZERO/OPT

* Copy the new XADRIVER.EXE to SYS$LOADABLE_IMAGES and reboot 


This has been tested on both a uVAX II and a 730 (with a DRV11 and
a DR11W respectively) and everything works fine.


  \ | /  Michael L. Ardai   Teradyne EDA   DATA Group
   \|/   Usenet: ...!sun!sequent!sybil!ardai
 ---*--- ---------------------------------------------------------------------
   /|\   USnail: 179 Lincoln St.   Boston MA 02111
  / | \  I don't speak for Teradyne; they don't even know I am speaking...