How to enable coredump for one user in all shells in RHEL 6.3 ?

khandu · 11-18-2012, 08:50 PM

We have added the following line for "user1" in .bash_profile

Code:

ulimit -c unlimited

But it is not generating command for a process (application) started at startup - slapd

Now can it be that ulimit is set only for BASH prompt and not for other prompts or whichever prompt RHEL takes for starting up the slapd startup scriptin /etc/init.d/ ? maybe our logic is wrong..

We don't want to enable ulimit globally for all users .. just for this one user but it is not working as currently setup..

any suggestions.. and how can i test the theory once the slapd is running..

bathory · 11-20-2012, 08:11 AM

Hi,

To enable coredumps for a user edit (as root) the file /etc/security/limits.conf and add:

Code:

user1    soft    core            unlimited

Regards

khandu · 11-20-2012, 04:37 PM

Thanks

We have it in that file now..

also in /etc/init.d/slapd we have added

Quote:

. /etc/init.d/functions
DAEMON_COREFILE_LIMIT='unlimited'

Then restarted slapd and then to crash slapd as user we did

Quote:

$kill -11 PID

OR

$kill -3 PID

no core dump found..

What else can be going wrong??

bathory · 11-21-2012, 02:24 AM

To produce a coredump, you can use gdb. Find the PID of the running program (slapd in your case) and run gdb against that PID. Once inside gdb use gcore:

Code:

#gdb --pid=XXX
(gdb) gcore

There should be a core.XXX created in the current directory.

You may also have a look here for a complete guide about debugging using a coredump

Regards