home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!news.claremont.edu!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL
- From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
- Newsgroups: comp.os.vms
- Subject: Re: What is XPDRIVER for?
- Date: 30 Dec 1992 13:19:03 GMT
- Organization: HST Wide Field/Planetary Camera
- Lines: 37
- Distribution: world
- Message-ID: <1hs7k7INNnqs@gap.caltech.edu>
- References: <1992Dec29.143542.4184@arizona.edu>,<1992Dec29.185622.1038@cmkrnl.com>
- Reply-To: carl@SOL1.GPS.CALTECH.EDU
- NNTP-Posting-Host: sol1.gps.caltech.edu
-
- In article <1992Dec29.185622.1038@cmkrnl.com>, jeh@cmkrnl.com writes:
- >You can see what's on the Q-bus by
- >
- > $ run sys$system:sysgen
- > SYSGEN> SHOW/UNIBUS
- > SYSGEN> SHOW/CONFIG
-
- WHOA! WHOA! TIME-OUT! WAIT A MINUTE! The SHOW/UNIBUS command is
- *DANGEROUS*. It talks to all the devices on the bus in a way that's
- uncoordinated with anything else VMS is doing with them. To quote from the
- online help for SYSGEN:
-
- SHOW
-
- /UNIBUS
-
- /UNIBUS
-
- Tests every word in UNIBUS I/O space and returns a list of addresses
- that respond and the value that was read. Note that this command is
- useful for debugging UNIBUS autoconfigure problems, but it is not
- -------------
- recommended for use on a running system. All unibus adapters are the
- ----------------------------------------
- default, /ADAPTER=adapter-spec can be specified. Requires CMKRNL
- privilege.
-
- (emphasis mine). Using this command can crash your system. Wait 'til you're
- ready to reboot before using it, if at all possible.
- --------------------------------------------------------------------------------
- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL
-
- Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My
- understanding of astronomy is purely at the amateur level (or below). So
- unless what I'm saying is directly related to VAX/VMS, don't hold me or my
- organization responsible for it. If it IS related to VAX/VMS, you can try to
- hold me responsible for it, but my organization had nothing to do with it.
-