Linux-Misc Digest #11, Volume #27                 Sat, 3 Feb 01 14:13:01 EST

Contents:
  Re: VNC - SSH || (Chris J/#6)
  Re: RAM advice (Jean-David Beyer)
  Re: lilo (John in SD)
  Saving font size on terminals (Wael)
  export variables to calling shell in a shell-script (Holger Hartmann)
  Re: RAM advice (Jean-David Beyer)
  ETA for distros to come with 2.4.X kernel ([EMAIL PROTECTED])
  suidperl problem (Beggar)
  Using  KVM switch with SuSE 6.4 ("Bill Keck")
  Re: Saving font size on terminals (Jean-David Beyer)
  Re: MS to Enforce Registration - or Else (Mark Bratcher)
  Re: suidperl problem ([EMAIL PROTECTED])
  Re: ETA for distros to come with 2.4.X kernel (Isaac Venn)
  DHCP question (Beggar)
  Re: NFS broken with 2.4.1? ("Peter T. Breuer")
  modem on rh7 ([EMAIL PROTECTED])
  Re: who's rewriting /etc/fstab? (Joost Gevers)
  Re: zombie process (Paul Kimoto)
  Re: DHCP question ("Jan Geertsma")
  Re: who's rewriting /etc/fstab? (Jean-David Beyer)

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

From: [EMAIL PROTECTED] (Chris J/#6)
Subject: Re: VNC - SSH ||
Reply-To: [EMAIL PROTECTED]
Date: 3 Feb 2001 17:08:40 -0000

Sergiy Zhenochin  <[EMAIL PROTECTED]> wrote:
>I did not quite ask what I wanted to: how to tunnel the NT-Linux connection
>through SSH ?
>
>Thanks
>

See:
        http://www.uk.research.att.com/vnc/sshvnc.html
and also:
        http://www.uk.research.att.com/vnc/sshwin.html

Chris...

-- 
Chris Johnson            \  "If not for me then, do it for yourself. If not
[EMAIL PROTECTED]        \  for then do it for the world." -- Stevie Nicks
www.nccnet.co.uk/~sixie/   ~---------------------------------------+
Redclaw chat - http://redclaw.org.uk - telnet redclaw.org.uk 2000   \______

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

From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: RAM advice
Date: Sat, 03 Feb 2001 12:17:03 -0500

Xavier Houppertz wrote (in part):
> 
> > Have you measured why your performance falls when making "a big query on
> > the db"? What dbms are you using? What is the nature of the query? Is it
> > compute-limited? Memory-limited? IO-limited?
> 
> It is a sybase sql server (10.5).
> the query is a select on several tables with compute and multiple order
> clauses.
> Nothing is limited so one query can eat 99.9% of the cpu time and memory.
> I have no idea how to limit these (has to be in sybase central but where
> ...)
> Maybe it would be smart to restrict the cpu and mem usage to 70% per
> process.
> Any comments ?

How would you do that? It is something to measure, not to define. Except
for a few real-time operating systems, I know of none that permit
convenient control over the amount of memory, CPU-time, or IO-time a
process will get. You might be able to use ulimit -c to control the
maximum memory allowed, nice to control the amount of CPU resources you
get (but that is not as simple a matter as asking for 70%), and I do not
know how to control the IO-rates. But you should not need to do that.
What you need is to identify the bottleneck and then decide if it is
worth the trouble to fix it. Do you need more separate or faster hard
drives? A separate controller for each hard drive? A faster CPU? More or
faster memory? You must measure the resources presently consumed. vmstat
would probably be the best tool to use to find out.
> 
> > I run IBM's DB2 UDB dbms that can beat the dickens out of this machine.
> > I can run a job that takes about 1/2 hour, running both 550MHz Pentium
> > III CPUs on this machine at about 99+% busy, and still do no paging. DB2
> > has about 12 processes running (not including the client), and even
> > though it does a lot of IO, it is still compute limited. With the amount
> > of memory I have in this machine, and due to DB2's good query
> > optimization, I would estimate that most of the data DB2 needs is kept
> > in the cache (not L1 or L2: the Linux cache). The disk IO rate would be
> > around 200K bytes/second on my 10,000 rpm Ultra-2 SCSI controllers, that
> > I have seen approach 20 Megabytes/second on IO-limited jobs. In theory,
> > my hard drives are capable of 40 Megabytes/second sustained transfer
> > rate, but I have never seen that.
> 
> That's when you know your job and 'optimize' your hard and soft ... not my
> case !

I did not optimize anything much. I did tell DB2 to optimize the queries
as much as possible for that job, and to optimize its use of CPUs; I can
tell it to use only one, or use 2, or to use as many as it wishes. For
that one I tried it both ways and using both CPUs was best. Most jobs
run better with only one CPU, probably because the coordination of the
two takes more cpu time that it can save by using more computer power.
> 
> > My 72 megabytes of free memory were totally unused when I posted my
> > reply. I have more memory in my machine than I need, but it was so cheap
> > that it did not make sense to buy less. This way, if I "upgrade" to a
> > hungrier window manager than GNOME/Enlightenment, or start processing a
> > lot of moving video images, I will still have enough memory. And if not,
> > I have two memory slots open so I can go up to a Gigabyte of main
> > memory.
> 
> Think back when the RAM was about $50 the Mb ...

I remember when storage was $40/bit! In vacuum-tube days.

-- 
 .~.  Jean-David Beyer           Registered Linux User 85642.
 /V\                             Registered Machine    73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 12:05pm up 5 days, 20:34, 3 users, load average: 2.33, 2.20, 2.10

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

From: John in SD <[EMAIL PROTECTED]>
Subject: Re: lilo
Reply-To: [EMAIL PROTECTED]
Date: Sat, 03 Feb 2001 17:20:27 GMT

LILO 21.6.1 + patches at the below address
--John


On Fri, 02 Feb 2001 15:23:44 +0100, Davy Depreiter <[EMAIL PROTECTED]>
wrote:

>where can i find lilo 21.4.3-1.i386.rpm ??? Searched everywhere. Found
>it at redhat.com but i couldn't download it.


LILO version 21.6.1 (16-Dec-2000) source at
http://www.ibiblio.org/pub/Linux/system/boot/lilo
patches at ftp://brun.dyndns.org/pub/linux/lilo

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

From: Wael <[EMAIL PROTECTED]> 
Subject: Saving font size on terminals
Date: Sat, 03 Feb 2001 17:21:31 GMT

How can I save the font in X? I'm using gnome. When i click " settings " ->
"preferences"  and I choose a large font size, it doesn't get saved !!

Where are the configuration files responsible for that?

Thx


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

From: Holger Hartmann <[EMAIL PROTECTED]>
Subject: export variables to calling shell in a shell-script
Date: Sat, 03 Feb 2001 17:16:02 GMT



Hi!

the (bash) shell-script

=====
#!/bin/sh
export blubber=blabber

=====


should set the variable blubber to the value blabber in the shell, from
where I call the script...but it DOESN'T...any suggestions?

Thanks in advance,

Holger Hartmann




Sent via Deja.com
http://www.deja.com/

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

From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: RAM advice
Date: Sat, 03 Feb 2001 12:37:16 -0500

Michael Heiming wrote (in part):
> 
> > > > This is just for an advice. Do you think I'm 'easy' with this config or
> > > > should i add more memory ?
> > > >
> > > > 12:29pm  up 72 days, 22:19, 11 users,  load average: 0.25, 0.22, 0.16
> > > > 109 processes: 96 sleeping, 2 running, 11 zombie, 0 stopped
> > > > CPU states: 11.5% user,  1.3% system,  0.0% nice, 87.4% idle
> > > > Mem:  257088K av, 252764K used,   4324K free,  95864K shrd,  14028K buff
> > > > Swap: 130748K av,   8184K used, 122564K free                100220K
> > cached
> 
> swap has been used,

Mighty little compared with the amount available. The question, which
you are about to ask, how often it is swapping. My machine with twice as
much memory always ends up with some swap used because a lot of
processes are "running" that seldom get used, such as my mgetty's. I use
only one or two of those, so when the system wants memory, it pages the
other ones out in preference to reducing the buffer or cache space. My
machine goes for hours without any paging activity.

> watch during high usage of your server with vmstat, how long
> it keeps swaping,

Important.

> write a script that colects automagically data to file if your machine is
> swapping.

If the periods of heavy load are predictable, or if you can run a
test-job to exercize the machine, you could just let the vmstat run in
an x-term and run the rest in another window.

> That you don't have much RAM left
> free is normal on a linux server, as linux has this clever aproach: You paid
> for all this RAM, I will use it,
> everything will be cached and bufferd what is done, speeds up next time much
> more if the VM has not to load
> it from disc...
> 
> I would consider puting more RAM in your machine, it's cheap, the more you have
> the faster Linux will be, but even if you had 1 G in
> your server it would be all taken by linux very fast but most shrd & buff. Some
> DB like it, if you set the shared max pages in the kernel sources higher and
> recompile it, I don't know about Sybase...

Why suggest more memory before the OP has determined what the bottleneck
is?
> 
> What about disk speed? Look with hdparm how much your disks give you...

I do not believe hdparm works with SCSI drives. Do we know what the OP
is using?
> 

> > > I guess your distribution is very different from mine. I do not remember
> > > kerneld since Red Hat Linux 5.0 days. Where are your kpiod and kswapd
> > > processes? I suppose your distribution does not require them, but it is
> > > a surprise to see them missing.
> > >
> 
> That's not comparing the same things, you are running a workstation, with X and
> some seti proccess on a machine
> with plenty of RAM...lucky you...
> 
> Seti is running complete in memory and no I/O to disks like a database
> described by the original poster does

Is this better? I started a test job running DB2. db2sysc is the generic
name of a bunch of DB2 server processes. The top two are running most of
the work. It is still not swapping.

 12:33pm  up 5 days, 21:03,  3 users,  load average: 4.11, 2.84, 2.37
83 processes: 77 sleeping, 6 running, 0 zombie, 0 stopped
CPU0 states: 85.1% user, 14.0% system,  3.2% nice,  0.0% idle
CPU1 states: 87.1% user, 12.1% system,  3.1% nice,  0.0% idle
Mem:   516672K av,  377796K used,  138876K free,  108180K shrd,   56328K
buff
Swap:  273088K av,   15660K used,  257428K free                  191928K
cached

  PID USER     PRI  NI PAGEIN  SIZE  RSS SHARE STAT %CPU %MEM  CTIME
COMMAND
 2086 db2inst1  15   0   1517 14776 9020  7348 R    39.3  1.7   2:44
db2sysc
 2087 db2inst1  13   0   1194 14792 9036  7376 R    38.2  1.7   2:45
db2sysc
 3245 db2inst1   2   0    334 11908 6128  5816 S     6.5  1.1   0:12
db2sysc
 2257 jdbeyer    0   0    288  1216 1216  1012 S     3.2  0.2   1:16
xosview
  945 jdbeyer    7   5    836  3504 3504  2736 S N   2.6  0.6  16:11
cpumemusage_app
 2398 seti2     19  19    421 15628  15M   796 R N   2.3  3.0  93:57
setiathome
32355 root       1   0    835 31116  30M  2104 S     2.1  6.0  16:43 X
  920 jdbeyer    9   8    369   916  916   700 R N   1.5  0.1   3:44 top
31621 seti      19  19   1297 15888  15M   796 R N   1.3  3.0 883:21
setiathome
 3053 jdbeyer    2   0   2416 17028  16M  7584 S     1.3  3.2   0:38
acroread
  916 jdbeyer    0   0    562  2884 2884  1604 S     0.4  0.5   0:30
xterm
  954 jdbeyer    0   0    958  3868 3868  3008 S     0.2  0.7   0:58
modemlights_app
    1 root       0   0    403   284  268   208 S     0.0  0.0 15009m
init
    2 root       0   0      0     0    0     0 SW    0.0  0.0   0:04
kflushd
    3 root       0   0      0     0    0     0 SW    0.0  0.0   0:17
kupdate
    4 root       0   0      0     0    0     0 SW    0.0  0.0   0:00
kpiod
    5 root       0   0   4657     0    0     0 SW    0.0  0.0   0:05
kswapd
    6 root     -20 -20      0     0    0     0 SW<   0.0  0.0   0:00
mdrecoveryd

-- 
 .~.  Jean-David Beyer           Registered Linux User 85642.
 /V\                             Registered Machine    73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 12:15pm up 5 days, 20:44, 3 users, load average: 2.62, 2.24, 2.13

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

From: [EMAIL PROTECTED]
Subject: ETA for distros to come with 2.4.X kernel
Date: Sat, 03 Feb 2001 12:44:54 -0500


Are there any official dates on when distros will begin
coming with kernel 2.4.x and what are they?

Mark


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

From: Beggar <[EMAIL PROTECTED]>
Crossposted-To: comp.lang.perl.misc
Subject: suidperl problem
Date: Sun, 04 Feb 2001 01:50:40 +0800

Hi all,

I am writing a program to do some tasks that need root
permission.

Here is the program,  123.pl
=======================================
#!/usr/bin/suidperl -w
$ENV{'PATH'}="/usr/bin:/usr/sbin:/bin:/sbin";

print "content-type: text/html\n\n";

$temp1=`cat /etc/shadow`;
$temp2=`/bin/ps`;

`nohup "start_my_server_program"`

print "$temp1,$temp2"
=========================================

Q1:    Why when I run the perl with "perl 123.pl", it always show:
    Insecure $ENV{BASH_ENV} while running setuid at ./123.pl line 7.

Q2:    The problem in Q1 does not happy in using as CGI call from web.
    But I can only got the output from "$temp1", no output from
"$temp2".
    Why can't I use "ps" in this script.

Q3.    When I run my program with "nohup", it seems that it can't run at

    all, why ? I can start my server program in command mode with nohup.

quite a long question, but it stuck me for a 3 days to play with it.
Any help would be very appreciated~

Thanks in advance !

Please cc a mail to [EMAIL PROTECTED]

Hei


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

From: "Bill Keck" <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux.suse
Subject: Using  KVM switch with SuSE 6.4
Date: Sat, 03 Feb 2001 17:55:46 GMT

I am trying to use a KVM switch to share the keyboard, monitor, and mouse
between my spare Win98 box and my SuSe 6.4 box.  I can boot the SuSE box
just fine, use the equipment properly, flip the switch to my Win98 box, and
use the equipment properly.  The problem occurs when I switch back to my
SuSE box.  The keyboard and mouse hang.  I normally have to do a hard reset
in order to use my SuSE box again.  Does anyone know what setting I need to
make so that my SuSE box doesn't freeze?  Does SuSE just not like KVM
switches?  Any help is appreciated.



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

From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: Saving font size on terminals
Date: Sat, 03 Feb 2001 12:57:14 -0500

Wael wrote:
> 
> How can I save the font in X? I'm using gnome. When i click " settings " ->
> "preferences"  and I choose a large font size, it doesn't get saved !!
> 
> Where are the configuration files responsible for that?
> 
> Thx

I never looked for where, but where do you mean? In an x-term? Or
"everywhere else"?

In an x-term, click the Preferences and set it in there and it should
remain.

For GNOME/Enlightenment, GNOME->Settings->Theme selector and just set
it.

You might want to do GNOME->Settings->Save Current Session, or check the
Save Current Setup when you log out. I do not recall if that is
necessary.

-- 
 .~.  Jean-David Beyer           Registered Linux User 85642.
 /V\                             Registered Machine    73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 12:50pm up 5 days, 21:19, 5 users, load average: 4.35, 3.11, 2.58

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

From: [EMAIL PROTECTED] (Mark Bratcher)
Crossposted-To: comp.os.linux.advocacy
Subject: Re: MS to Enforce Registration - or Else
Date: Sat, 03 Feb 2001 18:12:26 GMT

>There is a valid proof that God doesn't exist, but I can't remember who coined 
>it now: "the existance of God disproves the existance of God, therefore God 
>does not exist". Seeing as you're mathematically/scientifically minded, you 
>might be able to figure out the logic of that statement.

Hmm. That doesn't sound scientific to me.

Now Goedel's theorems are interesting. They indicate that in any "system" (consisting
of axioms and rules for proviing theorems) either one of the following is the case:

1. There will be some statements that cannot be proved or disproved, or

2. Two contradictory statements can be proved true.

God created a universe in which we live. He exists outside of what we observe with our
5 senses and cannot be proved or disproved using the scaffolding of assumptions and
theories we have developed based upon the very limited observations we have made
thus far regarding the universe.

-- 
Mark Bratcher
To reply, remove _UNSPAM from my email address
=========================================================
Escape from Microsoft's proprietary tentacles: use Linux!

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

From: [EMAIL PROTECTED]
Crossposted-To: comp.lang.perl.misc
Subject: Re: suidperl problem
Date: 03 Feb 2001 18:06:40 +0000

Beggar <[EMAIL PROTECTED]> writes:

> #!/usr/bin/suidperl -w
> $ENV{'PATH'}="/usr/bin:/usr/sbin:/bin:/sbin";
> 
> print "content-type: text/html\n\n";
> 
> $temp1=`cat /etc/shadow`;
> $temp2=`/bin/ps`;
> 
> `nohup "start_my_server_program"`
> 
> print "$temp1,$temp2"
> =========================================

> Q1:    Why when I run the perl with "perl 123.pl", it always show:
>     Insecure $ENV{BASH_ENV} while running setuid at ./123.pl line 7.

See the entry for the error message "Insecure $ENV{%s} while running
%s" in perldiag.
 
> Q2:    The problem in Q1 does not happy in using as CGI call from web.

Probably because the web server didn't define BASH_ENV in the CGI
script's environment.

>     But I can only got the output from "$temp1", no output from
> "$temp2".
>     Why can't I use "ps" in this script.

Dunno.

> Q3.    When I run my program with "nohup", it seems that it can't run at 
>     all, why ?

There's little point using nohup when the program is already running
without a controlling terminal.

BTW: don't use backticks in a void context.  For reason see FAQ
"What's wrong with using backticks in a void context?"

It would probably be enlightening to take a look in the HTTP server's
error log.

> Please cc a mail to [EMAIL PROTECTED]

Please post only to newsgroups you read.

Please use Mail-copies-to: header rarther than asking us to do it manually.

-- 
     \\   ( )
  .  _\\__[oo
 .__/  \\ /\@
 .  l___\\
  # ll  l\\
 ###LL  LL\\

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

Date: Sat, 03 Feb 2001 12:30:33 -0600
From: Isaac Venn <[EMAIL PROTECTED]>
Subject: Re: ETA for distros to come with 2.4.X kernel

Redhat 7.1 beta is out with the 2.4 kernel.



[EMAIL PROTECTED] wrote:

> Are there any official dates on when distros will begin
> coming with kernel 2.4.x and what are they?
> 
> Mark



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

From: Beggar <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking
Subject: DHCP question
Date: Sun, 04 Feb 2001 02:42:06 +0800

Hi all,

I am setting up a DHCP server. After I start the server,
The another linux client can get the IP assign.
But that cannot success with other Windows client,
the log message only show the
"DHCP DISCOVER" and then
"DHCP OFFER"

but no "DHCP REQUEST" at all, and the windows
client fail to get the IP.

Any hint ?

Thanks
Please cc a mail to: [EMAIL PROTECTED]

Hei



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

From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: NFS broken with 2.4.1?
Date: Sat, 03 Feb 2001 18:45:50 GMT

MH <[EMAIL PROTECTED]> wrote:
> Peter T. Breuer wrote:

>> MH <[EMAIL PROTECTED]> wrote:
>> > NFS: NFSv3 not supported
>> > nfs warning: mount version older than kernel
>> 
>> > Does this mean the new kernel does not support earlier versions of NFS?
>> 
>> No, it means your nfs client does not support v3, only v2.

> Since my NFS client is a RH 7.0 box (with the 2.4.1 kernel update), and 
> since my NFS server is a RH 6.0 box  with 2.2.17 kernel update (kernel 
> support for NFS compiled in), I don't understand how this could be.  Are 

I don't see the logical problem. In the first place, RH are perfectly
capable of doing anything wrong (particularly if it relates to
networked multiuser setups, as their main market is single-user
workstations working over a ppp line and a modem). In the second place 
I am not aware that either the new kernel or the old kernel or the
new RH or the old RH know anything at all about NFS v3, or if they
do, if there are clients to match the server end. I thought nfsv3
was still a kernel patch, along with acls and other irixy gizmos.

At last rumour, I didn't hear there were any v3 servers for linux -
though I think there might be v3 clients. (no, these are not facts - go
check for yourself if you want those. I am merely stating what I 
do and do not know for certain). 

> you saying that RH shipped an NFS client with 7.0 that was OLDER than the 
> NFS server supported by kernel 2.2.17?  (nfs-utils-0.1.9.1-7 is installed 

What do you mean by "older"? If you are talking about the report from
mount (which is not an error message, nor really of much interest), I
imagine mount is merely comparing dates - I would be surprised if it
knew about kernel versions, but anything is possible. What cersion of
mount do you have? I have 2.5m and it's always complaining to me about
kernels from 2.2.17 on upwards.

> on the client box.  I assume this package includes the NFS client.)

And I too assume many things ... but I am certain that I'm not going to
be using either RH or nfs v3 in the near future :-). I'm happy shooting
down lockd wherever I find it.

Peter

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

From: [EMAIL PROTECTED]
Subject: modem on rh7
Date: Sat, 03 Feb 2001 18:36:58 GMT

Hello all,
        I am trying to set up my modem in rh7.  I have a us robotics internal
56k isa modem. If I do a pnpdump to isapnp.conf it shows the modem.  I
have set the ioport to 3f8 and irq 4 in isapnp.conf.  Looking at what is
in the log files, it shows the modem also.  I have tried to use
setserial to autoconfig the modem.  I have also tried use set serial to
manually configure all of it, uart, irq.  No matter what I do the modem
doesnt respond in minicom.
        This is the same thing that I did in rh6.1/6.2.  For some reason it is
no longer working.  Any Ideas?????


Thanks in advance,
Andrew Eaton


Sent via Deja.com
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------------------------------

From: Joost Gevers <[EMAIL PROTECTED]>
Subject: Re: who's rewriting /etc/fstab?
Date: Sat, 03 Feb 2001 19:57:34 +0100

>

SNIP

>
> >>I have experienced an identical problem with Partition Magic 5.0. Adding
> >>two partition before my /dev/hda8 results in a changed fstab. /dev/hda8
> >>becomes /dev/hda10.
> >>Removing the paritions results in /dev/hd19
> >>
> >>So if it is PM which causes the problem, it is not solved in 5.0, maybe in
> >>6.0
> >>
> >>Joost
> >>
> >Now the next question.
> >Is there anything else that does what Partition Magic does but without
> >the bug.  I know there are others but I have never used them.
> >I think we would all appreciate hearing from the people who use PM's
> >competitor products.
> >Masoud
>
> How sure are you (or the previous poster) that PM is the one actually
> changing fstab?  I just find it really hard to believe that that kind of
> utility would go around editing files on your system.  It really sounds more
> like Red Hat noticing that something has changed on the next re-boot and
> then "fixing" your config files for you.
>
> --
> Ray

I created two new paritions using Windows NT4, before my last linux partition.
Restarted my
computer and nothing happened with my /etc/fstab. Linux didn't start correct,
because it could not find /dev/home on the right partition. This is the reason
I think it is not linux that does change the /etc/fstab.

Joost


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

From: [EMAIL PROTECTED] (Paul Kimoto)
Subject: Re: zombie process
Date: 3 Feb 2001 13:55:45 -0500
Reply-To: [EMAIL PROTECTED]

In article <95gplk$j1c$[EMAIL PROTECTED]>, Xavier Houppertz wrote:
> sybase   10457  0.0  0.0     0     0  ?  Z   Jan 23   0:00 (sybmultbuf
> <zombie>)
>
> I have a dozen of them (one per day). Is this something caused by my backup
> server (i backup every night)
> What is it ? Can i remove those ? How ? How can i prevent this ?

Under unix, every process (besides "init") is started by its "parent"
process.  When a program ends, it returns a status value.

If the parent is still alive, then it's the parent's responsibility to
accept the status value (because it might care whether the status is
"successful" or "not successful" or something else).  Until the parent
accepts the value or the parent terminates, the completed process is a
"zombie".

If (or when) the parent terminates, the responsibility for taking care of
the status value is inherited by "init", which should immediately accept
the value.

So:
* Zombie processes do not take up any resources except for their entries
  in the process table.  Unless there's a huge number of them, there's no
  need for concern.
* Zombies go away when their parents die.
* Zombies are not created if parents wait for returned status values.

-- 
Paul Kimoto
This message was originally posted on Usenet in plain text.  Any images, 
hyperlinks, or the like shown here have been added without my consent,
and may be a violation of international copyright law.

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

From: "Jan Geertsma" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking
Subject: Re: DHCP question
Date: Sat, 03 Feb 2001 18:59:18 GMT

Thought some versions of windows have a glitch, .... update your dhcp server
to fix this problem (or update your windows-client :)

Jan

"Beggar" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi all,
>
> I am setting up a DHCP server. After I start the server,
> The another linux client can get the IP assign.
> But that cannot success with other Windows client,
> the log message only show the
> "DHCP DISCOVER" and then
> "DHCP OFFER"
>
> but no "DHCP REQUEST" at all, and the windows
> client fail to get the IP.
>
> Any hint ?
>
> Thanks
> Please cc a mail to: [EMAIL PROTECTED]
>
> Hei
>
>



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

From: Jean-David Beyer <[EMAIL PROTECTED]>
Subject: Re: who's rewriting /etc/fstab?
Date: Sat, 03 Feb 2001 14:04:41 -0500

Joost Gevers wrote:
> 
> I created two new paritions using Windows NT4, before my last linux partition.
> Restarted my
> computer and nothing happened with my /etc/fstab. Linux didn't start correct,
> because it could not find /dev/home on the right partition. This is the reason
> I think it is not linux that does change the /etc/fstab.
> 
What is /dev/home supposed to be?

-- 
 .~.  Jean-David Beyer           Registered Linux User 85642.
 /V\                             Registered Machine    73926.
/( )\ Shrewsbury, New Jersey
^^-^^ 2:00pm up 5 days, 22:29, 3 users, load average: 2.24, 2.21, 2.13

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


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