asterisk users - Nov 2004 - Memory Consumption

Hello,

I use Asterisk 1.0.2 on a RedHat Enterprise Server 3.0 (Kernel 2.4.21)
and i experienced that the memory consumption of the asterisk-process
started by the init.d-script raises continously. Now, after 3 hours of
operation (on our testing-system we have 30 concurrent connections to
another asterisk box using IAX2 and GSM codec) there is already 66MB
allocated. I think this could be ok, but the memory consumption
increases until all memory (including swap) is used, and then there is
following entry in /var/log/asterisk/messages:

Failed to fork(): Cannot allocate memory

On our other Asterisk box (running Fedora Core 3 with Kernel 2.6.9)
there is no problem like this, memory consumption is stable over days.

Could there be an issue unsing a system with Kernel 2.4.21? I had a look
at bugs.digium.com but didn't find any useful entries.

I would be thankful if there are any ideas how i could fix this without
changing the OS! I could use a newer Kernel but then it runs out of
support at RedHat.

Thank you in advance,
Roland

Roland Zagler wrote:
> Could there be an issue unsing a system with Kernel 2.4.21? I had a look
> at bugs.digium.com but didn't find any useful entries.
Sorry, can't reply to the rest of your mail, but I'm using 2.4.21 with 
FC1 here, no probs.

-- 
Cheers,

Matt Riddell
_______________________________________________

http://www.sineapps.com/news.php (Daily Asterisk News - html)
http://www.sineapps.com/rssfeed.php (Daily Asterisk News - rss)

Roland Zagler wrote:
> I use Asterisk 1.0.2 on a RedHat Enterprise Server 3.0 (Kernel 2.4.21)
> and i experienced that the memory consumption of the asterisk-process
> started by the init.d-script raises continously. Now, after 3 hours of
> operation (on our testing-system we have 30 concurrent connections to
> another asterisk box using IAX2 and GSM codec) there is already 66MB
> allocated. I think this could be ok, but the memory consumption
> increases until all memory (including swap) is used, and then there is
> following entry in /var/log/asterisk/messages:
> 
> Failed to fork(): Cannot allocate memory

This is a just a guess, but an educated one - RHEL3 is using a RedHat 
back port of NPTL which is, how to say it... completly fscked up :-)

If this is really the problem then all you have to do to resolve the 
issue is to add a line with:

export LD_ASSUME_KERNEL=2.4.1

to the init script that runs Asterisk.

For an explanation of what this does look here:

http://people.redhat.com/drepper/assumekernel.html

If this does work, you must do the following:

1. Tell me it worked, I'm a curious bastard :-)

2. Call up RedHat support and tell them to  fix their broken 
"Enterprise" distro.


Good luck,
Gilad

-- 
Gilad Ben-Yossef <gilad@codefidence.com>
Codefidence. A name you can trust(tm)
Web: http://codefidence.com  | SIP: gilad@pbx.codefidence.com
Tel: +972.9.8650475 ext. 201 | Fax:  +972.9.8850643

"I am Jack's Overwritten Stack Pointer"
	-- Hackers Club, the movie

Hi I'm using Asterisk CVS-HEAD-03/09/05-18:25:28, Debian 3.0 rc3 and a
Pentium IV 2.4 Ghz 512 Mb.

When I boot my computer, top reads:
Mem:    515824K total,    33852K used,   481972K free,     1292K buffers
Swap:   979924K total,        0K used,   979924K free,    17052K cached

after two days running I have only 9000K free (less than 9 Mb) physical
memory available... the only way I have found to recover the lost memory is
to reboot the computer...

any help will be greatly appreciated.

bye,
Matias