Missing core dump

Question

I have a crashing application, which crashes with the output: Aborted (core dumped).

Now when I look at the directory, containing the binary, there is no crashdump.

• There is no core directory.
• There is free space on the filesystem
• User can create files in the directory.

ulimit -a prints

core file size          (blocks, -c) unlimited
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 31845
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 65536
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 31845
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

cat /proc/sys/kernel/core_pattern prints

core

cat /proc/sys/fs/suid_dumpable prints

2

Is there anything else I can check? I am out of ideas.

Am running on Ubuntu 15.04.

Answer 1

• Some OS allow to configure a systemwide directory where to put core files

• The program may have changed it's working directory. The core file is in the working directory of the program that dumped core

• If ulimit -c 0 was issued, the shell message should not print "core dumped" unless the OS is buggy