Hi. I've send a mail to apache-httpd-users and because I didn't found a solution - I have to ask for help you (I suppose that it is debian-related problem, my systems are debian sarge):
I have a strange problem with apache 1.3: it cannot fork to more then 256 processes, it exits with error: [alert] (11)Resource temporarily unavailable: setuid: unable to change to uid: 33 uid 33 is www-data, apache user in my system. I've written 'strange', because: * It is related to linux kernel 2.6 (tested on 2.6.8 on IntelXeon (32-bit) and AMD640) - downgrade to 2.4 solves the problem. * Probably it is not related to specific apache version (tested 1.3.26-0woody6 and 1.3.33-3 debian versions, I've found on google someone, which had the same problem on other distribution with apache compiled from sources) * It is not related to PAM and limits: server:~# su - www-data -s /bin/bash 'ulimit -u' 4000 I've confirmed the ability to launch more then 2000 processes with a shell test (sleep 20 2000 in background). * It is not related to available file descriptors: server:~# su - www-data -s /bin/bash 'ulimit -n' 8000 server:~# cat /proc/sys/fs/file-nr 1652 387 49152 * It is related to all processes owned by one user - if I stop apache-ssl (running as www-data too) - I can have a little bit more apache processes. * I suppose it is not related to system libraries too - I have the problem on Debian Stable (3.0) and testing versions, there is a big difference between them. I'm not saying, that this is problem with apache, but I'm not able to observe it with any other application (e.g. I have near 400 postgresql processes). Do you have any idea how can I find this resources limit? Maybe it has something to do with threads? Look at http://groups.google.com/groups?hl=pl&lr=&ie=UTF-8&inlang=pl&selm=1cgJD-1yU-1%40gated-at.bofh.it - there is someone else, who had to downgrade to kernel 2.4 TIA, Richard. -- "First they ignore you. Then they laugh at you. Then they fight you. Then you win." - Mohandas Gandhi. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]