Core dumps

Hi
I’m trying to get a core dump out of nginx but it isn’t working…

I have done the following:

Made directory with permissions:
drwxr-xr-x 2 root root 4.0K 2011-05-26 00:32 nginx-core

changed config:
worker_rlimit_core 512M;
working_directory /home/dcstaff/nginx-core/;

but no dump is made when it crashes:
2011/05/26 06:46:50 [alert] 20526#0: worker process 20547 exited on
signal 11

Is there any other trick to it?

I should say this is on linux - ubuntu 10.10

Hello!

On Thu, May 26, 2011 at 08:06:37AM +0000, Richard K. wrote:

working_directory /home/dcstaff/nginx-core/;

but no dump is made when it crashes:
2011/05/26 06:46:50 [alert] 20526#0: worker process 20547 exited on signal 11

Is there any other trick to it?

Worker processes are usually run under non-root, so it’s unlikely
that write permissions for root will be enough.

Maxim D.

Sorry, I chose a bad example
I have 3 machines where it’s not dumping
The other 2 had the correct permissions already
Should it core dump for signal 11 of a worker?

Worker processes are usually run under non-root, so it’s unlikely
that write permissions for root will be enough.


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On Thu, May 26, 2011 at 09:02:26AM +0000, Richard K. wrote:

Sorry, I chose a bad example
I have 3 machines where it’s not dumping
The other 2 had the correct permissions already
Should it core dump for signal 11 of a worker?

Probably you need to set also:
echo 1 > /proc/sys/fs/suid_dumpable

Worker processes are usually run under non-root, so it’s unlikely
that write permissions for root will be enough.


Igor S.

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