HDTenEightyP/NetNews huggingface dataset:
From: limes@ouroborous.eng.sun.com (Greg Limes)
Newsgroups: comp.sys.sun.admin
Subject: Re: To upgrade (4.1.3) or not to upgrade that i
Date: 28 Sep 92 19:07:11
Organization: /usr/limes/.organization
NNTP-Posting-Host: ouroborous
In-reply-to: clc8347@tamu.edu's message of Fri, 18 Sep 1992 18:58:42 GMT

In article <1992Sep18.185842.15060@tamsun.tamu.edu> clc8347@tamu.edu (Cheryl Cato) writes:
|   Sun's comment on upgrading to 4.1.3: "it is in the customer's best
|   interest to upgrade in MOST CASES".

Personally, I'd *especially* advise any owners of the Sun-4M machines
to upgrade to this release, mainly for reason #1 below.

|   1.  150+ bug fixes included

|	   however, we found patch 100575-02 (SunOS 4.1.2 patch for MP
|	   machines not performing as 4/4XX equivalent) was NOT
|	   included in 4.1.3 - something about stability problems

Alas, some of the fancy dancing we did on top of 4.1.2 could no longer
be done on top of 4.1.3; but nearly everything got in.

|   3. performance gains

|	   on a SS600MP (Ross) all benchmarks increased to 102% when
|	   compared to 4.1.2, EXCEPT for the Kenbus 1 benchmark which
|	   went down to 89%

This is when comparing 4.1.3 (plus "dnlchash" and "segkmap" patches
from the 4.1.3 CD-ROM) against 4.1.2 (plus the 100757-02 patch).
Given 4.1.2+patch at 100%, and 4.1.3+patch at 89%, 4.1.2 was at 64%!

Newsgroups: comp.sys.sun.admin
From: ericm@microunity.com (Eric Murray)
Subject: DNS gibberish
Organization: MicroUnity Systems Engineering Inc.
Date: Thu, 1 Oct 1992 23:29:31 GMT



I'm using an IPX as a mail gateway.  It's running SunOS 4.1.2 and DNS.
No YP.  Lately it's been getting some of it's data garbled, i.e.:

Oct  1 16:15:01 machine syslog: gethostbyaddr: hpcss01.cup.hp.c*K^FR^?^?^?^? != 15.27.240.34


If I look at what my named's got, I can see the same gibberish:

% dig -x 15.27.240.34 any

; <<>> DiG 2.0 <<>> -x any
;; ->>HEADER<<- opcode: QUERY , status: NOERROR, id: 6
;; flags: qr rd ra ; Ques: 1, Ans: 1, Auth: 7, Addit: 14
;; QUESTIONS:
;;      34.240.27.15.in-addr.arpa, type = ANY, class = IN

;; ANSWERS:
34.240.27.15.in-addr.arpa.      86316   PTR     hpcss01.cup.hp.c*KR.

[...]


But looking at one of the listed nameservers for hpcss01, I see that
it has the record correctly (well, at least no gibberish):


% dig -x 15.27.240.34 @hpcuoa.cup.hp.com any

; <<>> DiG 2.0 <<>> -x @hpcuoa.cup.hp.com any
;; ->>HEADER<<- opcode: QUERY , status: NOERROR, id: 10
;; flags: qr aa rd ra ; Ques: 1, Ans: 1, Auth: 0, Addit: 0
;; QUESTIONS:
;;      34.240.27.15.in-addr.arpa, type = ANY, class = IN

;; ANSWERS:
34.240.27.15.in-addr.arpa.      86400   PTR     hpcss01.cup.hp.com.

[...]


So it must be my named that's screwed up.  But even after looking at it's
debugging output I can't figure out how.  Does anyone have any clues?

Thankx.

--
  Eric Murray                                             ericm@microunity.com
    This package contains one (1) Usenet news posting.  Do not eat.
From: jack@solucor.uucp (Jacques Gelinas)
Newsgroups: comp.sys.sun.admin
Subject: Who cleanup /tmp
Date: 25 Sep 92 14:07:03 GMT
Organization: solucorp

I have noticed that temporary files accumulated in /tmp. Some
does not seem to cleanup. Files produce by cmdtool just seems to
grow forever.

I was wondering if there was some daemons who do the cleanup in /tmp
once in a while, deleting old files.

I am the only user of the workstation, so I just never log out, never
exit from OpenWindows.

I am running Sunos 4.1.2 with OpenWindows 2 on a Sparc ELC.

I believe there is some process who do that once in while (not in crontab
, I have check), because I do the cleanup only when I need more space
in /tmp. Most of the time, I don't check, and I am running this workstation
for a year.



-- 

--------------------------------------------------------
Jacques Gelinas (jack@solucor.uucp)
Maintainer of US4BINR jack@us4binr.uucp jack%us4binr.uucp@uunet.uu.net
Newsgroups: comp.sys.sun.admin
From: drl@vuse.vanderbilt.edu (David R. Linn)
Subject: Re: HP LJ III w/ JetDirect:  How to make it work w/ NeWSprint?
Keywords: LaserJet, JetDirect, NeWSprint
Organization: Vanderbilt University School of Engineering, Nashville, TN, USA
Date: Mon, 28 Sep 1992 15:44:48 GMT

In article <-a#py!m.wolski@netcom.com> wolski@netcom.com (Don Wolski) writes:
>Jet Direct is an Ethernet card that goes into a Laser Jet printer
>allowing the printer to be directly connected to the network.
> ...
>It is not obvious how to merge the two, e.g. the :lp=...: printcap
>capability spec created by the Jet Direct installation points to a
>zero length file in the spool directory.

Look at the docs on how to setup the net peripheral to run with
TranScript.  Basically, you run a daemon that serves as the master
of a pty that takes stuff written to that slave of that pty and
sends it to the net periph.  You just set the lp= value to the
slave side of that pty.

	 David
-- 
David R. Linn, System/Mail/News Manager	| INET: drl@vuse.vanderbilt.edu
Disclaimer: I speak only for myself	| Phone: [+1] 615-343-6164
      "Some do, some don't and that's the way of the world."
Newsgroups: comp.sys.sun.admin
From: vermenou@wmsg01.wm.estec.esa.nl (Frederick Vermenou)
Subject: Re: Xview executables and SGI 4.0.5 OS incompatible
Keywords: xview SGI
Organization: ESA/Estec/WMS, Noordwijk, The Netherlands
Date: Thu, 1 Oct 1992 09:25:01 GMT

I've just got a new SG Indigo. But I am unable to run Sun programs and 
display them on the SGI. When I "press" one of the menu buttons on the SUN
program the screen locks and I have to kill the process from a SUN.

Any help appreciated

Frederic Vermenouze - ESTEC, Holland.
vermenou@wm.estec.esa.nl
vermenou@wmsg01.wm.estec.esa.nl
Newsgroups: comp.sys.sun.admin
From: robp@bytex.com (Robert Pierce @ws047)
Subject: Redundant Sparcs
Organization: bytex.com
Date: Mon, 5 Oct 1992 17:14:28 GMT

Hi,

I am looking for a way to make a sparc station fully redundant.

These systems would ideally be connected via ethernet but a serial
line is not out of the question.

The difficulty seems to be in how to mirror disks connected to
different CPUs.

I have looked at SUNs ON-Line Disk Suite but it requires having the disks
connected to the same CPU.

Anyone have any expereice/info on how to do this?


Please reply via e-mail.

uunet!bytex!robp
robp@bytex.com

Thanks

robert pierce, sys admin - bytex
Newsgroups: comp.sys.sun.admin
From: ces@cv.Prime.COM ( Calvin Smith )
Subject: Re: SUN 1.3gig w/690
Keywords: 690 SCSI 1.3G
Reply-To: jtb@hacker.Prime.COM
Organization: Prime Computer, Renton, WA
Date: Mon, 5 Oct 1992 23:00:50 GMT

In article <rsnow.718307116@proton>, rsnow@rice.edu (Robert Snow) writes:
|> Does anyone know if/how to hook a 1.3G SCSI to a 690 which has
|> 2 IPI drives in it.  The SUN manual says that external SCSI HD's are
|> not supported on the 690.
|> 
|> rsnow@proton.rice.edu
|>  
Yes you can do it, you need to take the scsi cable off the scsi input on the top of the chassis and plug it into the scsi disk and then go from the scsi disk to the top of the chassis again.  However you need to use very short cables or you will run into problems with scsi cable length.

Calvin Smith   ces@cv.Prime.COM		the opinions expressed are mine
					and not of my employer.	

Newsgroups: comp.sys.sun.admin
From: barr@pop.psu.edu (David Barr)
Subject: Re: Problem with ypbind
Organization: Penn State Population Research Institute
Date: Tue, 06 Oct 92 17:19:45 GMT

In article <1asdhaINNdof@early-bird.think.com> barmar@think.com (Barry Margolin) writes:
>In article <1992Oct6.081616.19601@reks.uia.ac.be> frans@kiwi.uia.ac.be writes:
>>Evertyhing workds fine, except for the fact that at startup ypbind binds to the
>>master server instead of to our machine itself. I tried by putting a sleep of
>>some seconds between the invocations of ypserv and ypbind in the rc.local file,
>>but no cure...
>
>In my experience, ypbind almost always binds to another machine rather than
>itself.  I'm not sure of the precise mechanism whereby broadcasts get back
>to the transmitting machine, but it's obviously not as quick as reaching
>other machines.

Yes, this is rather annoying.  I always thought that the binding mechanism
was based on load.  Since a booting machine usually has a rather high
load, on bootup ypbind usually won't bind to itself, but of a machine of
lesser load than itself.

--Dave
-- 
System Administrator, Population Research Institute    barr@pop.psu.edu
From: mangan@kodak.kodak.com (Paul Mangan)
Newsgroups: comp.sys.sun.admin,ek.programming
Subject: Re: Poblem with .openwin -init
Date: 6 Oct 92 12:31:50 GMT
Article-I.D.: kodak.1992Oct6.123150.28882
Organization: Eastman Kodak Company

In article <1992Oct5.201225.14114@pixel.kodak.com> bak@bak.kodak.COM (Bruce A. Kern) writes:
>I have a customer running OpenWindows 3.0 an a Sparc loaded with SunOS 4.1.2.
>When the user logs in the .openwin-init file contains a command:
>
>/usr/scanner/bin/ss_controlX Scanner1 -Wp 90 118 -Ws 638 516 -WP 130 0
>-Wi -Wg &

ARE YOU STARTING THE LINE IN THE .openwin-init FILE WITH toolwait ?
>
>The process being started complains about a bad command line and issues
>its usage
>message.  Note that the arguments following Scanner1, "-Wp 90..." are
>for the OpenLook window manager so that it can control the screen geometry.
>
>When the same command is executed from the command-line the command
>parsing procedes normally and the process starts up nicely.  I have
>never seen this problem with OpenWindows 3.0 and SunOS 4.1.1 and do not
>have a 4.1.2 system available to try it out on.
>
>Has anyone seen this?  Any help would be appreciated.  Thanks.
>
>
>=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
>+=+=+=+=+
>Bruce A. Kern					(716) 726-6700
>Eastman Kodak Company				Bruce_Kern@Kodak.COM
>=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
>+=+=+=+=+
From: fisher@ncselxsi.uucp (Chuck Fisher)
Newsgroups: comp.sys.sun.admin
Subject: ftp log-ins rejected
Date: 30 Sep 92 19:21:31 GMT
Article-I.D.: ncselxsi.1992Sep30.192131.8897
Organization: National Computer Systems, San Jose, CA  95131

I have a SPARCstation 1+ running SunOS 4.1 in a small heterogeneous
vendor network.  I can successfully telnet and use uccp via TCP in
both directions between network clients.  I'm am *not* running NIS nor
NFS.

When I attempt to ftp to the Sun, I receive a "530 Access denied user"
message as soon as I enter the userid.  Even if I ftp the Sun to
itself, I get the same error.  The system does not even prompt for the
password, but rejects the connection as soon as I specify the userid.
I can successfully ftp from the Sun to other systems on the network.
Another strange thing is that I *can* connect to the Sun when I log in
as "root".  If I enter a userid in uppercase, the password is
prompted and then the connection denied.

I'm not using any "ftpusers" file and all of the userids have non-null
passwords.  I do *not* have a userid "ftp" defined nor any home
directory set-up for "ftp".

Can anyone suggest what might be wrong?  Permissions on a file,
perhaps?

Thanks,
Chuck
-- 
Chuck Fisher                                        (800) 359-7997 Work
ncselxsi system administrator                       (415) 964-2819 Home
uucp:  ...!netcom!ncselxsi!fisher
Xref: sparky comp.sys.sun.admin:6944 comp.unix.admin:5390 alt.sys.sun:3233
From: rogers@fangorn.wr.tek.com (Roger Southwick)
Newsgroups: comp.sys.sun.admin,comp.unix.admin,alt.sys.sun
Subject: Opinions about backup.uunet sought
Date: 5 Oct 92 18:33:30 GMT
Article-I.D.: wrgate.10721
Followup-To: comp.sys.sun.admin
Organization: Tektronix, Inc.

I will soon be evaluating backup.uunet for backing up a great many
workstations and fileservers.

If anyone is {currently using,have used} this product, or has evaluated
it, would you please E-mail me a list of good and bad points you
found.

Many thanks in advance.
--
    -Roger      (Roger.S.Southwick@tek.com)
		UUCP:	...!uunet!tektronix!Roger.S.Southwick
Xref: sparky comp.sys.sun.admin:6755 comp.sys.sun.apps:2085
From: craven@cg.emr.ca (Jim Craven)
Newsgroups: comp.sys.sun.admin,comp.sys.sun.apps
Subject: Tired of crontab
Date: 29 Sep 92 12:21:44 GMT
Reply-To: craven@cg.emr.ca
Organization: Dept. of Energy, Mines & Resources, Canada

Does anyone know of a simple-to-use (X) interface to crontab?  I am
looking for an interface somewhat like Calendar Manager, with the
flexibility of starting any command such as cron does.
 
Calendar Manager would be quite useful in this regard if the appointment
editor had the facilities to setup a command to spawn at alarm time.

Any information appreciated, thanks in advance.  If
any interest is generated I will summarize.

Jim
---
Love is like the ozone layer,            |Jim Craven (craven@cg.emr.ca)|
   You don't miss it until it's gone.    |Geological Survey of Canada  |
        ---Frank Drebbin, Police Squad   |1 Observatory Cres., Ottawa  |
-----------------------------------------|K1A 0Y3 (613) 996-9935-------|
Newsgroups: comp.sys.sun.admin,comp.sys.sun.hardware
From: billc@lakers.EBay.Sun.COM (Bill Campbell)
Newsgroups: comp.sys.sun.admin,comp.sys.hp
Subject: Exabyte support on HP700s
Date: 6 Oct 92 23:04:19 GMT
Article-I.D.: male.1at61jINN1d8
Reply-To: billc@lakers.EBay.Sun.COM (Bill Campbell)
Distribution: world
Organization: Sun Microsystems, Inc.  Mt. View, Ca.
NNTP-Posting-Host: lakers.ebay.sun.com



There seems to be a serious problem in reading tar files (written 
on a Sun) on an exabyte connected to HP700s. The *UNSUPPORTED* device
driver for exabyte on HP700s cannot do a lot of the basic things.
 
I am seriously looking for a *SUPPORTED* exabyte driver for HP700 
workstations. I am sure there must be some 3rd party companies which  
have written a separate device driver for Exabyte (8200, 8500 and 8500c)
and fully *SUPPORT* their product.
 
I am curious as to how many of you have similar requirements like me.
You can send me mail if you are interested in joining my survey. 
~
Newsgroups: comp.sys.sun.admin,comp.unix.ultrix,comp.protocols.nfs,comp.mail.sendmail,comp.mail.elm,comp.mail.misc,comp.unix.admin
From: mosedale@fafner.stanford.edu (Dan Mosedale)
Subject: SUMMARY: NFS mounting /var/spool/mail && file locking
Organization: Stanford Yeast Genome Project
Date: Wed, 30 Sep 92 18:51:31 GMT

A while ago, I posted a question asking what the deal was with having
a single /var/spool/mail mounted via NFS on many machines.  I was
curious whether lockd bugs could cause mail to be lost.  Specifically,
I was interested in how SunOS and Ultrix dealt with this, and how elm
and sendmail fit into the picture.

I apologize for taking so long to summarize; there are two main things
that I found out:

1) Mail user agents (/usr/ucb/mail -- Ultrix & SunOS, elm, etc.)
generally use a second file to lock the mailbox such as
/usr/spool/mail/mosedale.lock.  This seems to keep many problems at
bay.

2) It is considered a very good idea to have the mail transfer agent
(eg sendmail) on the subsidiary machines punt all incoming mail to
/var/spool/mail's home machine and have it delivered only on that home
machine.  In SunOS, this is done by setting up sendmail.cf to use the
OR command (see /usr/lib/sendmail.subsidiary.cf).  Ultrix sendmail
looks like it may a similar capability, but I'm not entirely clear on
how it works.  IDA sendmail can do this using the MAILSERVER macro in
the m4 source file for sendmail.cf.

The general consensus seems to be that these measures are reasonable
solutions, and almost no-one has had any lost mail problems once these
are in place.

Thanks to everyone who helped me out.

Dan Mosedale
mosedale@genome.stanford.edu
From: twp@rand.mel.cocam.oz.au (Tony Payne CSD)
Newsgroups: comp.sys.sun.admin
Subject: Re: What is the best way change machine name?
Keywords: name machine
Date: 28 Sep 92 04:24:11 GMT
Organization: Co-Cam Computer Group, Oz

In article <1992Sep21.020154.9570@w8hd.org> kimc@w8hd.org (Kim Culhan) writes:
>Whats the best way to change the machine name of an IPC running SunOS 4.1.2?
>

/usr/etc/install/sys-unconfig


Newsgroups: comp.sys.sun.admin
From: jens@seas.gwu.edu (Jens Johansen)
Subject: setting root window to color pixmap?
Originator: jens@seas.gwu.edu
Organization: George Washington University
Date: Fri, 2 Oct 1992 21:01:40 GMT

Hullo there, sun people...

A colleague of mine has a question for you all.  I'd appreciate it if you
replied to my mailbox, and I will forward any messages...

Basically what she wants, I think, is a background picture that she can
select (and perhaps paint) herself, while she runs motif.

And now, without further ado, here's Carmel's question...

I need a command or function that will allow me to set the root
window of my screen (when running MOTIF) to a color pixmap specified 
preferably as a parameter of the function.  This would be similar to
"xsetroot" but allow a filename parameter which contains an image in any
one of a set of formats (ie xpm, xbm ...).  Sounds very easy, but I can't
seem to find anyone who knows.  It doesn't have to be invoked at MOTIF  
startup, it can be issued from command line.  HELP!


Carmel


--well ladies and gentlement there it is, heartfelt as it comes.

Jens

-- 
Jens Johansen (jens@seas.gwu.edu)       | DISCLAIMER:  
----------------------------------------|   GWU may agree with what I say...
  /* insert your own witty message */   |   although you're right...
           /* right here */             |   they probably don't...
From: jgrij@lhdsy1.lahabra.chevron.com (Joey J. Griffin)
Newsgroups: comp.sys.sun.admin
Subject: Re: Xterms on Suns
Summary: My Apologies for the "xhost+"
Date: 5 Oct 92 20:28:44 GMT
Distribution: usa
Organization: Chevron, La Habra, CA

> <original posts deleted>
> 
> <responses too>
> 
> 
> Please folks, don't do this unless you trust *everyone* who can
> connect to the machine running the X server on port 6000 (the X port).
> There are very easy ways to do things like read all of a person's
> keystrokes, pass commands to xterms (for execution), etc etc.  This
> means that if you are directly on the internet, you shouldn't do this.

My apologies to all netters for my insecure use (and recommendation)
of the "xhost" command.  My machine is not directly on internet and
I forget that most companies allow users to be directly on internet.

> The next step up is to xhost +<machine> where <machine> is the name of
> the machine you want to run an Xprogram from.  Even better is some
> form of authorization, ranging from MIT-MAGIC_COOKIE (in which keys
> are passed openly across the net) to SUN-DES (on Sun's (of course),
> which uses Sun's publickey functions to pass authorization).  For
> those in a college setting, any of these will eliminate such 'fun'
> things as other people displaying pictures on your computer, etc.
> 
> Philip Guenther
> 

I thank Philip Guenther and Tobias Weingartner for showing me the
possible evils of "xhost +" and how to better the user of the "xhost"
command.
-- 
 -------------------------------------------------------------------------
   Joe Griffin                               Internet:   jgrij@chevron.com
   Chevron Oil Field Research Company                             
   P.O. Box 446, La Habra, CA 90633-0446                        
Newsgroups: comp.sys.sun.admin
From: ben@dxcern.cern.ch (Ben Segal)
Subject: Problem with NIS (ypbind) with subnetted interfaces
Organization: CERN European Laboratory for Particle Physics
Date: Thu, 1 Oct 1992 12:54:42 GMT

Here's a real strange one: anyone seen it before?

At CERN we are about to convert one of our IP networks (UltraNet) to
appear as a subnet of our main Class B Ethernet. A number of machines have
interfaces on both UltraNet and Ethernet, and they are clients of a NIS
server out on the Ethernet, i.e. they run ypbind. All works fine EXCEPT
for the following problem:

Case 1:  ypbind is running when Ultra is brought up. In this case, the
	 Ultra startup script does not complete properly: it hangs for ever
	 at the point where the unet0 device is being ifconfig'd,
	 apparently due to broken communication with NIS (ypserv).
	 In fact at this point, all communication on the Class B net
	 remains impossible until UltraNet is put down again, or else
	 reconfigured to be NOT a subnet of the Ethernet.

Case 2:  ypbind is not running when Ultra is brought up, i.e. all the
	 host/network/... info is in local tables. In this case the
	 UltraNet comes up perfectly, and all subnetting works fine.
	 BUT:
	 As soon as ypbind is started, it fails immediately with the
	 error message  "ypbind:  can't register tcp service".

NOTES:
      -- This only happens if unet0 is SUBNETTED off the Class B net.
	 The actual subnet mask used is 0xffffffc0 if that's of interest.

      -- It happens for both SunOS4.1.2 and SGI IRIX4.0.5 implementations.

      -- It also seems to happen for OTHER network devices, so it is not
	 an Ultra problem per se. Just by ifconfig'ing an FDDI interface
	 as a subnet of the Class B Ethernet (on a machine that has both
	 Ethernet and FDDI), we seem to get the same effects.


	 Ben Segal - CERN/CN
	 1211 Geneva 23, Switzerland  /   Tel: +41-22-767 4941
From: raboud@esmlsun.gatech.edu (R.A. Raboud, Jr.)
Newsgroups: comp.sys.sun.admin
Subject: hp laserjets, printcap, and CRLF's
Date: 29 Sep 92 22:01:40 GMT
Organization: GTRI

have hooked up an hp lj II to ttya.
serial communication has been checked out.

problem:
the sun does not seem to be sending out a CR chacter with the LF

printcap entry has the following line

        :ms=-parity,onlcr,cs8:

I thought the the onlcr remapped nl to cr nl for output but i guess not.

any clues????????

Thanks in advance,
Robert


----------------------------------------------------------------------
R.A. Raboud, Jr -- Georgia Tech Research Institute
GTRI/ESML - CRB 484a - (404) 853-9136
robert.raboud@gtri.gatech.edu
Newsgroups: comp.sys.sun.admin
From: gopi@nynexst.com (Gopinath Tatachar)
Subject: Re: Sparcprinter Problem
Followup-To: Sparcprinter problem Article # 6939
Keywords: STACKORDER
Reply-To: gopi@nynexst.com
Organization: Sun Microsystems, Inc.
Date: Fri, 2 Oct 92 21:19:06 GMT

In my previous mail the line should have been 
STACKORDER=-b;export STACKORDER

Sorry about that.

-Gop
{
Gopinath Tatachar			Phone: (914) 644 - 2146
NYNEX Science & Technology Inc		Email: gopi@nynexst.com
Development Services			Room: 2-A-6
}

Newsgroups: comp.sys.sun.admin,comp.unix.admin,comp.unix.wizards
From: Asokan <nasokan@yoho.uwaterloo.ca>
Subject: System V IPC on a Sun MP running 4.1.2
Organization: University of Waterloo
Date: Tue, 6 Oct 1992 03:07:31 GMT
X-Mailer: ELM [version 2.3 PL11]


I wanted to enable the System V IPC facilities (shared memory
stuff in particular) on one of our MPs (Sun 4/600) running
SunOS 4.1.2.  I enabled the IPCMESSAGE, IPCSEMAPHORE and
IPCSHMEM options in the kernel config files, re-built the
kernel and rebooted the machine.  Everything seemed to
have gone ok.

About half an hour later, the machine just hung.  It didn't
ping.  There was no response from the console -- couldn't
even break.  The lights on the back were as usual.  Powercycling
was the only way out.  The same thing happened again after
an hour or so.  There were nothing in /var/adm/messages
to indicate what could have gone wrong.

After yet another round, I gave up and put the old kernel
back and everything is fine.

Has anyone else seen this problem?  Is there something other
than rebuilding the kernel?  Is there a patch of some sort?
Any help will be deeply appreciated.

Thanks.

- Asokan