HDTenEightyP/NetNews huggingface dataset:
From: scott@austin.ibm.com
Newsgroups: comp.unix.aix
Subject: Re: Virtual Memory curiosity
Keywords: VM overflow response
Date: 21 Nov 92 00:00:17 GMT
Distribution: usa
Organization: IBM Austin
Originator: scott@porter.austin.ibm.com


In article <1e530vINNrcn@network.ucsd.edu>, dkf@chem.ucsd.edu (David Knight French) writes:
> The question I have hear, "Is it one better?"  Seems to me you would 
> have a lot more overhead using this scheme.  The OS must now page fault
> on reaads and writes if what it wants is not in memory.  Maybe I am 
> reading this wrong, but some stats I have gotten from sar point to this
> being the case.  When the system was doing reads/writes, the number
> of context switches jump dramatically.  Again I don't know AIX internals,
> but the overhead here does seem dramatic enough to suggest that the 
> kernel is page faulting on large reads and writes.
> 
> I am very interested in what is really happening here.  If anyone
> knows for sure or could point me at the proper information I could
> read, I would greatly appriciate it.

There is an article titled "Evolution of Storage Facilities in AIX Version 3"
in the IBM RISC System/6000 Technology book (order number SA23-2619) which
should answer some of your questions.  This same article also appeared in
the IBM Journal of Research and Developement Volume 34, Number 1, Jan. 1990
which is probably more accessible to you.


Scott L. Porter                         IBM AWS Austin / AIX Kernel Development
                                        Internet: scott@austin.ibm.com
-- 
Scott L. Porter                    IBM AWS Austin / AIX Kernel Development
                                   Phone: (512) 838-3319  T/L: 678-3319
"Beam me up, Scotty"               VNET: PORTER at AUSTIN
                                   Internet: scott@austin.ibm.com
Newsgroups: comp.unix.aix
From: mskucher@math.uwaterloo.ca (Murray S. Kucherawy [MFCF])
Subject: Re: AIX sendmail bug
Organization: Math Faculty Computing Facility, University of Waterloo, Canada
Date: Thu, 19 Nov 1992 21:26:01 GMT

mqh@theory.TC.Cornell.EDU (Mike Hojnowski) writes:
>mskucher@math.uwaterloo.ca (Murray S. Kucherawy [MFCF]) writes:
>>The stock sendmail on AIX doesn't appear to honour MX record
>>references when "OK ALL" is used as an option.  Are there any known bugs with
>>MX record handling in AIX sendmail?
>
>Murry,  I've got mine set to "OK MX", and it handles MX just fine.  I didn't 
>see a need to specify ALL, so I skipped it.

I'll try that instead - thanks.
Newsgroups: comp.unix.aix
From: boone@convex.cl.msu.edu (Dennis Boone)
Subject: Re: Virtual Memory curiosity
Keywords: VM overflow response
Organization: Michigan State University, East Lansing
Distribution: usa
Date: Wed, 18 Nov 92 19:36:45 GMT

In article <1992Nov12.131230.130467@jrh.uucp> jrh@jrh.uucp (James R. Hamilton) writes:
>In article <bmarlowe.721422470@ka> bmarlowe@ka.reg.uci.edu (Brett Marlowe) writes:
>>I've heard rumor that AIX will pick processes to kill off to avoid
>>running out of virtual memory?  Can anyone verify this and if this is
>>true a) is there a way to disable this "feature" and b) what idiot
>>decided that randomly killing processes was a good idea??!!
>>
>    It is true that AIX will start killing process when it runs out of 
>    page space.  You can disable this feature (i.e. protect a process)
>    by it calling "signal(SIGDANGER, SIG_IGN)".  WRT to the idiot that
>    decided to randomly kill processes, the decision is not random -- 
>    processes are killed youngest first (in AIX 3.2) and if they ignore 
>    SIGDANGER then they are not killed at all.

I tend to agree with Brett.  The solution is completely non-portable and
non-standard, so out-of-the-box software has to be modified.  You can't
run a stable system if the o/s is going to run around whacking off
important processes.  The fact that the decision isn't really random makes
no difference: it still isn't possible to tell which processes will get
the axe without keeping continuous track of every new process.

Dennis
--
= There is no monopoly on common sense, on either side of the political fence =
Xref: sparky comp.unix.aix:11664 comp.protocols.appletalk:3938
From: amundson@fairview.cc.ndsu.NoDak.edu (Dennis J. Amundson)
Newsgroups: comp.unix.aix,comp.protocols.appletalk
Subject: CAP6.0 backend program for AIX3.2 print spooler ??
Keywords: cap papif backend
Date: 18 Nov 92 01:25:23 GMT
Article-I.D.: ns1.Bxw1AB.JBH
Distribution: na
Organization: North Dakota Higher Education Computing Network


  I am trying to spool print files from our IP network to various Apple
laserwriters on an Appletalk network through a RS/600 530 running AIX3.2.2.  
The two networks are bridged by KIP Gatorboxes.  To
do this, I grabbed CAP6.0 (patch 125) and compiled it successfully.
I was wondering if anyone has come up with a general backend program for 
the AIX spooler which use the API functions which come with CAP.  If not,
am I stuck with either using the lwpr sample program as a simple backend,
or porting over BSD lpr/lpd to AIX (to use papif)?  I would greatly
appreciate some hints/helpful advice from people running CAP
on AIX...  Email responses to amundson@fairview.cc.ndsu.nodak.edu are 
prefered.

Thanks, Dennis

------------------
Dennis J. Amundson    Internet addresses
NDSU Computer Center  - amundson@fairview.cc.ndsu.nodak.edu (IBM RS/6000 220W)
Fargo ND  58105       - amundson@plains.nodak.edu           (Solbourne 5/802)
(701) 298-1042        - amundson@vm1.nodak.edu              (IBM ES9000)
-- 
Dennis J. Amundson              E-mail: amundson@fairview.cc.ndsu.nodak.edu
NDSU Computer Center            Bitnet: AMUNDSON at PLAINS
Fargo ND  58105                 Phone:  (701) 298-1042
Newsgroups: comp.unix.aix
From: haedener@iacrs1.unibe.ch (Konrad Haedener)
Subject: Re: **Help FORTRAN filter option?**
Reply-To: haedener@iacrs1.unibe.ch
Organization: University of Berne
Date: Thu, 19 Nov 1992 07:50:59 GMT

In article <9211182017.AA27063@NEWTON.baruch.cuny.edu>, daniel@NEWTON.baruch.cuny.edu writes:
|> 
|> 
|> I am interested in printing output from a FORTRAN printout
|> where the first column stands for the page breaks.  Is there a 
|> filter option for lp or lpr?  I did not see any listings for
|> FORTAN output.  If there is a filter option, or another command
|> I would greatly appreciate the information regarding this subject.
|> 
|> 
|> From:
|> 
|> Daniel Rios					"...From one word to the other
|> e-mail: daniel@newton.baruch.cuny.edu	 	    what I say vanishes.
|> voice:						    I know that I am alive
|> 	W: 212 447-3047				    Between two parenthesis"
|> 
|> 							  Octavio Paz

`asa' does what you're asking for.
-- 
Konrad Haedener                             Phone: +41 31 65 42 25
Institute for Physical Chemistry            FAX:   +41 31 65 39 94
University of Berne
Switzerland                                 haedener@iacrs1.unibe.ch
Newsgroups: comp.unix.aix
From: umarsa00@ctrvx1.vanderbilt.edu (PROF. A.S. UMAR, (615)322-2459)
Subject: mksysb backup without /home
News-Software: VAX/VMS VNEWS 1.41    
Organization: Vanderbilt University
Date: Sun, 15 Nov 1992 21:42:00 GMT


I am trying to figure out a way to do mksysb backups but do not include
the /home directory. This is because I would like to do more frequent
backups of the /home directory and less frequent system backups since
nothing much changes there.

I looked into the documentation of the mksysb command and learned that
it reads the image information from the .fs.size file in the root
directory. Could I just delete the line for the /home directory in
fs.size file and manually do a mksysb (smit startup - system backup first
runs the mkfssize! commnd to create .fs.size file).

Will this work? I presume it will. But if I restore the system from such
an image and also have a backup of /home directory (assuming users are the
same) and I restore that via tar will it work? How about mount points of
the users? is there a way to include in the image just the root part of
the /home directory?

I will appreciate a solution to this problem very much. Thanks,

umar@compsci.cas.vanderbilt.edu


Xref: sparky comp.unix.aix:11643 bit.listserv.aix-l:1737 bit.listserv.power-l:322
From: mwarren@rws1.ma30.bull.com (Mark Warren)
Newsgroups: bull.sys.aix,comp.unix.aix,bit.listserv.aix-l,bit.listserv.power-l
Subject: How to get more info about SIGSEGV
Date: 17 Nov 92 16:30:09 GMT
Organization: Bull HN Informations Systems Inc.


We have a program that can (in normal operation) perform a read or
write access to a non-existent (un-mapped) virtual address, or a write
to a read-only address.  We can tell when it occurs by catching
SIGSEGV, but it is very to tell within the program whether the fault
occurred due to a write to a read-only address, or due to a write (or
read) to an un-mapped address.  Also, we have a hard time determining
the offending address.

Is there any way we can interrogate any kernel service to determine
this information from within the SIGSEGV handler?   Yes, I've read
TFM, but I can't find anything useful.

I'll take anything, even if it means writing a kernel extension.

Thanks in advance,
--

 == Mark Warren                      Bull HN Information Systems Inc. ==
 == (508) 294-3171 (FAX 294-2699)    300 Concord Road   MA30/MS833A   ==
 == M.Warren@bull.com                Billerica, MA 01821              ==
From: rudi@acs.bu.edu (Kevin Ruderman)
Newsgroups: comp.unix.aix
Subject: Re: Getting xdm to update /etc/utmp
Keywords: xdm xterm /etc/utmp /var/adm/wtmp
Date: 22 Nov 92 21:44:11 GMT
Distribution: na
Organization: Boston University Office of Information Technology
Originator: rudi@acs.bu.edu


In article <By0uA9.57o@math.uwaterloo.ca>, mskucher@math.uwaterloo.ca (Murray S. Kucherawy [MFCF]) writes:
|> jdb@ocf.berkeley.edu (Justin D. Bukowski) writes:
|> >We are running xdm on our RISC/6000 with a couple of X-stations.
|> >We've noticed that logging in at the xdm login screen doesn't result
|> >in an entry in /etc/utmp. This is the file used by who and finger
|> >to get user login status. An rlogin does update properly, though.
|> 
|> xdm isn't supposed to do it - xterm is.  You need to have compiled xterm
|> with the right options and #defines and stuff, and you need to make sure
|> the utmpInhibit resource is "off" and you're not using -ut on the xterm
|> command line.

If you have done this I would be happy to get the exact options used.  I tried
to get the options right but ran into options that broke the source.  Fixed
the source, tried to  "teach" it how to do some things it had missed but still
had problems.  Output was being redirected to the wrong ttys.  I had corrupted
utmp somehow.  It's a long messy job and I'll discuss it with anyone who cares.
Gotta run for now.

|> Stock xterm with AIX has this disabled; stock aixterm works OK.

Aixterm does miss one this, it does not fill in the ut_host field.

Rudi

-------------------------------------------------------------------
Kevin Ruderman            (617) 353-2780       rudi@acs.bu.edu
Information Technology    Boston University    ..!bu.edu!acs!rudi
Newsgroups: comp.unix.aix,comp.unix.admin
From: mjp@austin.ibm.com (Michael Phelps)
Subject: Re: determining if you are in an x-windows session
Originator: mjp@bwa.kgn.ibm.com
Date: Mon, 16 Nov 92 19:54:12 GMT
Distribution: usa
Reply-To: mjp@vnet.ibm.com (Michael J. Phelps)
Organization: IBM Kingston NY


In article <1992Nov16.132809.10942@wap.oau.org>, bdixon@wap.oau.org (Bill Dixon) writes:
|> Very simply: is there any way to tell whether you are executing a program
|> from within an x-windows session, as opposed to an ascii terminal?  The
|> TERM environment variable may or may not be set to aixterm.
|> -- 
|> Bill Dixon
|> bdixon@wap.oau.org

 Most programs seem to assume that if the DISPLAY environment variable is set,
then X is active.  

-- 
Michael Phelps, (external) mjp@vnet.ibm.com ..
                (internal) mjp@bwa.kgn.ibm.com .. mjp at kgnvmy         
 (and last but not least a disclaimer)  These opinions are mine..
From: pr@umiacs.umd.edu (Jesus Rodriguez)
Newsgroups: comp.unix.aix
Subject: FAQ
Date: 16 Nov 92 22:39:48 GMT
Organization: University of Maryland Institute for Advanced Computer Studies
Originator: pr@fnord.umiacs.umd.edu



Could someone email me a copy of the AIX FAQ list (if it exists)?

Jesus M. Rodriguez
pr@umiacs.umd.edu

Newsgroups: comp.unix.aix
From: mycroft@hal.gnu.ai.mit.edu (Charles Hannum)
Subject: Re: termcap entry not found error
Keywords: termcap terminfo
Organization: /etc/organization
Date: Sun, 15 Nov 1992 19:11:43 GMT


In article <1992Nov10.161338.8572@muug.mb.ca> gordt@muug.mb.ca (Gordon
Tulloch) writes:
>
> I've installed both emacs and rn easily, but cannot execute them due
> to an error that pops up "Termcap entry not found" or somesuch.

To get the terminfo emulation of the termcap routines, make sure you
link with `-lcurses', not `-ltermcap'.

Then, `cd /usr/lib/terminfo; cat *.ti > terminfo.src; tic terminfo.src'
to build the entire terminfo database.  As shipped, most of the entries
have not been compiled.  (Note that this will take a few minutes.)

-- 
 \  /   Charles Hannum, mycroft@ai.mit.edu
 /\ \   PGP public key available on request.  MIME, AMS, NextMail accepted.
Scheme  White heterosexual atheist male (WHAM) pride!
From: dwatts@ki.com (Dan Watts)
Newsgroups: comp.unix.aix
Subject: Re: Help! dni software for aix??
Date: 15 Nov 92 19:38:35 GMT
Organization: ki Research, Inc

In article <1992Nov14.124524.29171@di.unipi.it> mannella@ipifidpt.difi.unipi.it (Riccardo Mannella) writes:
|Does anyboby know of an implementation of sun dni software for
|aix? We would like to use/receive DECNet mail on our R6000,
|and would appreciate any piece of information to do this.
|E-mail answers preferred.

ki Research Inc is an IBM business partner.  We sell openDNA which contains
the DECnet, LAT, and MOP protocols.   openDNA runs on AIX [as well as Sun,
HP, Ultrix, Sequent, SGI, Mips, and many others].  We also sell a VT340
emulation package. I think you'll find it's quite a full featured product
set.

Your local IBM rep should be able to tell you more about the product since
it's available from either IBM or ki.  For more info, send a message to
sales@ki.com and request a free copy for evaluation.

|Cheers
|Ricc
|----------------------------------------------------------------------
|Riccardo Mannella             E-mail : mannella@ipifidpt.difi.unipi.it
|Dipartimento di Fisica                 riccardo@mann1.difi.unipi.it
|Universita' di Pisa                    BITNET mannella@ipivaxin
|Piazza Torricelli 2                    DECNET 39186::mannella 
|56100 Pisa                    Phone  : +39 50 45221/2/3
|ITALY                         FAX    : +39 50 48277
|----------------------------------------------------------------------


######################## Have A Nice Nude Day ##############################
# UUCP      : ...!uunet!ki.com!sales                ki Research, Inc.      #
# Email     : sales@ki.com                          6760 Alexander Bell Dr #
# Voice     : 410 290 0355                          Columbia, MD 21046     #
# FAX       : 410 290 0397                                                 #
#### The Bill Of Rights: Void Where Prohibited by Law. Vote Libertarian ####
##### The War on Drugs is just part of the War on the US Constitution ######
From: bowman@csrp.tamu.edu (Kenneth P. Bowman)
Newsgroups: comp.unix.aix
Subject: Re: "The little yellow button" (Was: Reset button? Or shutdown?)
Followup-To: comp.unix.aix,bit.listserv.aix-l
Date: 23 Nov 1992 22:25:28 GMT
Organization: Texas A&M University
Distribution: world
NNTP-Posting-Host: bowman.tamu.edu

In article <By6MFn.H9s@news.cso.uiuc.edu>, shair@barolo.cso.uiuc.edu (Bob
Shair) wrote:
> I don't believe that it syncs anything.  When I need to push it, I issue the
> sync command first (don't need to be root for that), then press the BYB.
> 
> Yes, it can be disabled by putting the key in "secure" mode.

But that doesn't disable the other big reset button (also known as the
power switch), does it?  It will keep it from rebooting though.
---------------------------------------------------------------------------
Dr. Kenneth P. Bowman                          409-862-4060
Climate System Research Program                409-862-4132 fax
Department of Meteorology                      bowman@csrp.tamu.edu
Texas A&M University
College Station, TX   77843-3150
Newsgroups: comp.unix.aix
From: haedener@iacrs1.unibe.ch (Konrad Haedener)
Subject: Bug in xlc-1.2.0.13 (3.2.2+) ?
Reply-To: haedener@iacrs1.unibe.ch
Organization: University of Berne
Date: Mon, 23 Nov 1992 15:54:13 GMT

Consider the following legal C construct:

struct my_test {
       struct demo *demos;
       int count;
};       
    
where struct demo has not been declared when the compiler encounters the
construct.

According to the rules, "if a specifier with a tag but without a list appears
when the tag is not declared, an incomplete type is specified. Objects with 
an incomplete structure or union type may be mentioned in contexts where their
size is not needed, e.g. in declarations, for specifying a pointer, or for
creating a typedef".

I have evidence that xlc 1.2.0.13 fails to generate reliable code when using
this C feature but under the given circumstances it's not easy to provide a
'simple test case'. 

I'd appreciate if anyone with similar experiences with xlc would confirm this;
could we get some feedback from the development team? Are there related
changes to xlc in later modifications of the compiler?

Thanks,
-- 
Konrad Haedener                             Phone: +41 31 65 42 25
Institute for Physical Chemistry            FAX:   +41 31 65 39 94
University of Berne
Switzerland                                 haedener@iacrs1.unibe.ch
Newsgroups: comp.unix.aix
From: csrdh@marlin.jcu.edu.au (Rowan Hughes)
Subject: touch <date> won't work
Summary: touch <date>, cp -p  don't work
Keywords: touch cp
Organization: James Cook University
Date: Mon, 16 Nov 92 07:40:29 GMT

The command "touch 02171425 filnam" does NOT set the modification
time to 17-Feb 14:25, under AIX3.1.5.   Also "cp -p fil1 fil2" does
NOT preserve the modification time, i.e. fil2 is set to the current
time, not the mod time of fil1. This makes the "touch" command useless.

Is there a fix that works. e-mail replies to csrdh@marlin.jcu.edu.au.

TNKX in advance.

-- 
Rowan Hughes                                James Cook University
Marine Modelling Unit                       Townsville, Australia.
Dept. Civil and Systems Engineering         csrdh@marlin.jcu.edu.au
From: mycroft@hal.gnu.ai.mit.edu (Charles Hannum)
Newsgroups: comp.unix.aix
Subject: FAQ, sorry
Date: 23 Nov 92 17:03:00 GMT
Organization: MIT Laboratory for Computer Science


Being somewhat of a conceited twit [B-)], I rarely post apologies to
the net.

However, I wish to apologize for promising you all a FAQ.  Due to lack
of help and lack of time, I have decided that I cannot take on the task
of maintaining a FAQ list.

-- 
 \  /   Charles Hannum, mycroft@ai.mit.edu
 /\ \   PGP public key available on request.  MIME, AMS, NextMail accepted.
Scheme  White heterosexual atheist male (WHAM) pride!
From: mjo@slee01.srl.ford.com (Mike O'Connor)
Newsgroups: comp.unix.aix
Subject: Re: Does anyone have an example of a decent .netrc file?
Date: 16 Nov 1992 19:26:50 GMT
Organization: Not an official spokesperson for Ford Motor Co.
Distribution: comp
Reply-To: "Mike O'Connor" <mjo@fmsrl7.srl.ford.com>
NNTP-Posting-Host: slee01.srl.ford.com

In article <1992Nov13.105127.3812@ccu1.aukuni.ac.nz> graeme@ccu1.aukuni.ac.nz ( Graeme Moffat) writes:

:I do all my international ftp'ing from a SGI (Irix 4.0.5) & .netrc is as above.
:I've just tried it on AIX 3.2.2 & guess what? The default line doesn't work.

Get a different FTP client for your AIX box if you desire that
functionality.  The .netrc functionality is in the client, and the
client can be changed on a per-user or system-wide basis without
requiring root.  

						...Mike

--
 Michael J. O'Connor           |  Internet:  mjo@FMSRL7.SRL.FORD.COM
 Ford Motor Company, OPEO      |  UUCP:      ...!{backbone}!fmsrl7!mjo
 20000 Rotunda, Bldg. 1-3001   |  Phone:     +1 (313) 248-1260
 Dearborn, MI  48121           |  Fax:       +1 (313) 323-6277
Newsgroups: comp.unix.aix
Subject: AIX 1.2.1 can't find tape
From: jew@venus.sunquest.com (Ward... James Ward)
Date: 17 Nov 92 09:29:13
Distribution: world,local
Organization: Sunquest Information Systems

I have opened this problem with IBM, but wanted to see if anyone else
has traveled this road before while they try to recreate the problem.

The problem in a nutshell:

A routine backup is made of the system:

# for i in 1 2 3
> do
> dd if=/dev/hd$i /dev/rmt4
> done

The system hard disk dies and is replaced.  The system is booted from
diskette and the minidisks are created using exactly the same
parameters as the previous disk.

The system is booted from diskette and the maintenance shell is selected.
The attempt to restore the disk fails:

# dd if=/dev/rmt4 of=/dev/hd1
/dev/rmt4: no such device
# dd if=/dev/rmt0 of=/dev/hd1
/dev/rmt0: no such device

The device file exists and the 6157 has been verified with diagnostics.
--
jew@sunquest.com
From: frank@leopard.austin.ibm.com (Frank Feuerbacher)
Newsgroups: comp.unix.aix
Subject: Re: PTFs on installation servers
Date: 20 Nov 92 16:42:53 GMT
Reply-To: frank@austin.ibm.com
Organization: "Personal Systems Programming, IBM Austin"
Originator: frank@leopard.austin.ibm.com


In article <1992Nov18.123530.39@rcwusr>, jenkinsonjp@rcwusr.bp.com writes:
> i had gotten into the habit of rolling the various and insundry PTF tapes to
> a common directory on a machine we had setup as an installation server. once
> done i'd then go the various RS/6000s and install all patches with commit,etc.
> my theory was that any PTFs that i had loaded previously would be overwritten
> and the installp would take care of the prerequisite strings. this worked fine
> until they started to recend PTFs. just recently we got a tape with a BUNCH
> of fixes for the 220 and GT1 (bloody thing just didn't work). in doing the
> enmass PTF apply, i ended up with a pile of garbage. reloading the machine and
> applying the PTFs from tape, one tape at a time, the machine works fine.
> how do others apply PTFs to a large population of machines??

Did you read the memo to users and follow it's instructions?  Whatever you do, be sure
to apply the latest fix to installp first!  There was a major change made to enable
superseding PTFs with PTF U406852.  This PTF, or one that supersedes it, MUST be
applied first!  This PTF also has a performance and memory leak fix for installp.

I can not think of any other reason why your en-mass installation failed.
-- 
- Frank Feuerbacher


Disclaimer: I speak only for me!  And I don't even do a good job of that!
From: clee@ncsa.uiuc.edu (Cassian Lee)
Newsgroups: comp.unix.aix
Subject: ls problem
Date: 18 Nov 92 17:07:08 GMT
Article-I.D.: news.Bxx8vz.KLq
Organization: Nat'l Ctr for Supercomp App (NCSA) @ University of Illinois
Originator: clee@troon.ncsa.uiuc.edu


Keyword

I'm running AIX3.2, when I try to enter 'ls -lt|more', about 2 out of 5
times, the more command becomes a background process, and i get the following
message: 

Background write
[6] 20118 20119

I NEVER got this problem before when I was running AIX3.1.5. Got any ideas??

Cassian Lee