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I have some init scripts that launch some daemons that I wrote. I want Linux to generate a coredump anytime something crashes. I activated coredumps in /etc/security/limits.conf by adding the next line:
* hard core 100000
After rebooting, I run ulimit -a and I can see that coredumps are not activated:
> root@computer:~# ulimit -a
> core file size (blocks, -c) 0
First, I checked if there is any file script on my system that deactivates coredumps (greping ulimit -c 0
), but I didn't find anything so far.
Then, I created a bogus c program..to double check if it's working, and I can confirm that it's not. The program is this
int main() {
int *p;
return *p;
}
After running it, no coredump is generated
root@computer:~# ./a.out
Segmentation fault
I know that coredump works (and it's activated in the kernel), because after running ulimit -c 100000
and repeating the test above, a coredump is generated.
root@computer:~# ulimit -c 100000
root@computer:~# ./a.out
Segmentation fault (core dumped)
root@computer:~# ls
a.out core
I'm really out of ideas. Any help?
Thanks in advanved!!