[comp.os.vms] Returned Network Mail; <POSTMASTER@CUCCVX>

POSTMAST@CUVMA.BITNET (06/28/87)

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Date: Fri, 26 Jun 87 20:32 EDT
From: "Scott Elfman(Admiral Kirk)"
 <ACM0D%nuhub.acs.northeastern.edu@RELAY.CS.NET>
To: info-vax@KL.SRI.COM
X-VMS-To: NET%"info-vax@kl.sri.com",ACM0D

Please take my name off of the info-vax list!  I cant keep up with its volume,
 the quote is beeing eaten up to fast.  Thank You Scott Elfman.
------ End of forwarded mail by POSTMAionionifr4

campbell@maynard.BSW.COM (Larry Campbell) (06/29/87)

I think it's time to admit that there are several gateways through
which comp.os.vms (a.k.a. INFO-VAX) passes that are completely out of
control.  It's bad enough seeing dozens of messages every week with
the useless header line "Subject: (none)", but when an ignorant or
inconsiderate user sends mail to the WHOLE LIST requesting his removal
from the list, and his message gets bounced at a relay point and the
gateway then broadcasts the bounced mail message to the WHOLE LIST,
well, things are out of control.  It's only a matter of time (probably
weeks rather than months) before we get yet another infinite loop where
some berserk mailer starts causing every disk in the free world to overflow.

Maybe it's just selective recall, but it seems to me that the most broken
gateway software in the world is at BITNET sites.

At least some of these BITNET nodes have the good taste, humor, or cynicism
(pick one) to add the following "Comment:" header to articles they forward:

> X-Bitnet-Sender: General Delivery <POSTMASTER@CRUXNMC>
> Comments: This is gatewayed mail.  Warning:  Mail may not
>           necessarily be returnable through this path.

I won't even bother to discuss the ridiculous routing some of these messages
take;  the one from which the above header lines were excerpted was posted
at the University of New Hampshire (USA) and arrived here, a distance of about
seventy miles, via Amsterdam, Geneva, Berkeley, and Los Angeles.  (I can
understand odd paths in the USA, where interstate calls are often cheaper
than intrastate, but the trip across the ocean and back makes little sense.)

Is it too much to ask the BITNET people to get their gateways working more
robustly before the comp.os.vms (INFO-VAX) distribution goes completely
berserk and fills up everyone's disk?
-- 
Larry Campbell                                The Boston Software Works, Inc.
Internet: campbell@maynard.BSW.COM          120 Fulton Street, Boston MA 02109
uucp: {husc6,mirror,think}!maynard!campbell         +1 617 36 An An 

POSTMAST@CUVMA.BITNET (07/13/87)

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Date:     Mon, 13-JUL-1987 05:23 EST
From:     <POSTMASTER@CUCCVX>
Subject:  Returned Network Mail
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Date:    Fri, 10 Jul 87 16:42 CDT
From:    Dave Bell - ACADEMIC CONSULTANT (U. of Winnipeg)
 <UOWDJB%UOFMCC.BITNET@wiscvm.wisc.edu>
To:      info-vax@sri-kl.arpa
Subject: SPERRY MODEL 37 LASER PRINTER


  Is there anyone out there that has any experience with a
Sperry Model 37 Laser Printer.   I'm looking for setup modules
for this laser printer.
 Any replies can be sent to my BITNET address. Thanks in advance.

-------------------------------------

David Bell
Academic Consultant
Computer Services

E-mail:  UOWDJB@UOFMCC.BITNET
V-mail:  204/786-9494
S-mail:  Computer Services,
         The University of Winnipeg,
         515 Portage Avenue,
         Winnipeg, Manitoba,
         Canada  R3B 2E9

-------------------------------------
------ End of forwarded mail by POSTMAST@CUVMA.

POSTMAST@CUVMA.BITNET (07/13/87)

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Date:     Sun, 12-JUL-1987 04:37 EST
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Subject:  Returned Network Mail
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Date: 8 Jul 87 19:35:42 GMT
From: newton.physics.purdue.edu!pur-phy!mrstve!mdbs!jon@ee.ecn.purdue.edu  (Jon
 D. Reid)
Organization: Micro Database Systems, Inc., Lafayette IN
Subject: Re: DEC phone support (was Re: C ON VMS)
Message-Id: <386@mdbs.UUCP>
References: <1050@aldebaran.UUCP>, <14344@teknowledge-vaxc.ARPA>
Sender: info-vax-request@kl.sri.com
To: info-vax@kl.sri.com

In article <14344@teknowledge-vaxc.ARPA> mkhaw@teknowledge-vaxc.ARPA
(Michael Khaw) writes:
>in article <1050@aldebaran.UUCP>, jimp@cognos.uucp (Jim Patterson) says:
>>
>>[mentions that DEC phone support only recognizes 3 "designated names" ]
>> I've heard that there are . . . a number of designates named Mickey Mouse ...
>
>Yes, but what happens when . . . all the support people are busy and
>they have to call back?  How do you tell which Mickey Mouse in your
>organization called them?
>

In our company we have one person who is the official DEC Support "contact";
if I have a problem I describe it to him and he calls it in (he knows the
magic numbers they want and all that).  He tells DEC Support to ask for me
(my unregistered, for-real name) when they call back (they *always* call back),
and we've had no problems.
------ End of forwarded mail by POSTMAST@CUVMA.

POSTMAST@CUVMA.BITNET (07/13/87)

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Date:     Mon, 13-JUL-1987 06:50 EST
From:     <POSTMASTER@CUCCVX>
Subject:  Returned Network Mail
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Date: 11 Jul 87 13:36:33 GMT
From: ece-csc!ncrcae!ncr-sd!hp-sdd!ucsdhub!jack!man!crash!jeh@mcnc.org  (Jamie
 Hanrahan)
Organization: Crash TS, El Cajon, CA
Subject: Re: Help with a Kernal mode macro program
Message-Id: <1369@crash.CTS.COM>
References: <870708122836.001@sitvxb>
Sender: info-vax-request@kl.sri.com
To: info-vax@kl.sri.com

In article <870708122836.001@sitvxb> dstevens@sitvxb (David L Stevens) writes:
>
> ...the MOVC3
> statement in the Kernal Mode code, crashes the system every time I run it.

I replied to this via mail, but since then several not-quite-correct
responses have been posted as news, so here goes...

The folks who point out that MOVC3 clobbers R0-R5 are correct.  (And,
by the bye, LOC3 hits R0-R3.)  BUT, simply mentioning R2 through R5
in the kernel (not "kernal", please!) mode routine's entry point mask
is not sufficient to avoid the crashes.

The code shown is calling the VMS system routines EXE$IOLOCKR (lock
I/O data base via mutex for read) and EXE$IOUNLOCK (unlock I/O data
base mutex).  These routines require R4 to point to the current
process's PCB.  The call to IOLOCKR works because the $CMKRNL service
calls the target routine with R4 pointing to the PCB, but after the
MOVC3, R4 contains 0.  The mutex-handling routines check to ensure
that R4 is pointing to a valid PCB and bugcheck if it doesn't; hence
the crash.

R4 can be pushed at the beginning of the routine and popped just
before the call to UNLOCK, or pushed and popped around the MOVC3s.
Personally, I would put the following statement just before the calls
to both EXE$IOUNLOCK and EXE$IOLOCKR:

    MOVL    G^SCH$GL_CURPCB, R4     ; get addr of cur proc PCB

Sure, it's not necessary for IOLOCKR because of the context that
this code happens to run in... but that might change someday.
The MOVL makes the code less context-dependent, and also more
understandable.

One other thing:  All references to system-space labels
(EXE$IOLOCKR, EXE$UNLOCK) should be preceded with the G^ prefix
to ensure that they're position independent.

DISCLAIMER:  Names of system-space labels in the above were typed
from memory.  The suffixes are correct but the prefixes (EXE$,
SCH$, etc.) may be mixed up... it's late/early/not good.
------ End of forwarded mail by POSTMAST@CUVMA.