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Bug#399776: marked as done (apache2: Apache 2.2 spawns lots of processes and freeze the box)

Your message dated Wed, 16 Jan 2008 23:05:44 +0100
with message-id <200801162305.45132.sf@sfritsch.de>
and subject line apache2: increasing memory usage
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: apache2
Version: 2.2.3-3.1
Severity: critical
Justification: breaks the whole system

After a random time that goes from 5 minutes to days apache starts
forking a lot of processes, each using about 150m of VIRT and 20m
of RES memory. Most of the processes die and appear as <defunct> in
top or ps. After some tens of seconds the machine completely freeze
and should be rebooted. The console (the only time I was able to
have a look at it) has some kernel information about the oom-killer
killing apache2 but unfortunately this is happening to a remote
server and I don't have 24/24h access to it. Last time happened when
I was logged in and I was able to "killall apache2" and save the
box (this is how I understood what was happening.)

Right now I lowered the number of max clients from 150 to 25 but
this is not a definitive solution (for obvious reasons). If I can
do any test to provide better data just let me know.

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (600, 'testing'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-2-amd64
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages apache2 depends on:
ii  apache2-mpm-prefork           2.2.3-3.1  Traditional model for Apache HTTPD

apache2 recommends no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
version: 2.2.6-3

The patch to reduce the memory usage seems to have fixed this problem. 
Feel free to reopen the bug or file a new report if the problem 
appears again.

--- End Message ---
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