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core does not get generated in linux

Hello
This is URGENT!!!
core file is not getting generated for a process(pid: 1234), after running "kill -9 1234" or "kill -11 1234"

machine is:
Linux abc.def.xyz.org 2.6.18-164.2.1.el5xen #1 SMP Mon Sep 21 04:45:50 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

ulimit -a is:
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 32768
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 32768
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

cat /proc/1234/limits is:
Max cpu time unlimited unlimited seconds
Max file size unlimited unlimited bytes
Max data size unlimited unlimited bytes
Max stack size 10485760 unlimited bytes
Max core file size unlimited unlimited bytes
Max resident set unlimited unlimited bytes
Max processes 32768 32768 processes
Max open files 1024 1024 files
Max locked memory 32768 32768 bytes
Max address space unlimited unlimited bytes
Max file locks unlimited unlimited locks
Max pending signals 32768 32768 signals
Max msgqueue size 819200 819200 bytes
Max nice priority 0 0

PLease help

Sham

woolmilkporc

Hi,

"kill -9" will never force a core dump.

Try "kill -6" ("ABRT") instead.

If this doesn't work try "kill -3" ("QUIT").

wmp

mohet01

ASKER

if the sigsegv is generated due to code problem, how to generate core?
Sham

ASKER CERTIFIED SOLUTION

woolmilkporc

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mohet01

ASKER

perfect