no core dump from the kernel on SIGSEGV

[David Ho]

Hi all,

I'm looking at making the kernel core dump on a process that seg vaulted.
What I did was recompiled the kernel specifying a non-zero core file size
rlim[RLIMIT_CORE] = { RLIM_INFINITY, RLIM_INFINITY }.  I was still not
getting a core dump.

The following test program was used to signal a seg vault (SIGSEGV).

#include <stdio.h>

int main(int argc, char** argv) {

        unsigned int* pointer = (unsigned int*) 0x12345678;

        /* generate a SIGSEGV - invalid memory reference */
        *pointer = 0xdeadbeef;

        return 0;
}

Anyone can shred some light on this?

Thanks a lot,
David


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