Core dump file is not generated

Question

Every time, my application crash a core dump file is not generated. I remember that few days ago, on another server it was generated. I\'m running the app u

Answer 1

Check:

$ sysctl kernel.core_pattern

to see how your dumps are created (%e will be the process name, and %t will be the system time).

If you've Ubuntu, your dumps are created by apport in /var/crash, but in different format (edit the file to see it).

You can test it by:

sleep 10 &
killall -SIGSEGV sleep

If core dumping is successful, you will see “(core dumped)” after the segmentation fault indication.

Read more:

How to generate core dump file in Ubuntu

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Ubuntu

Please read more at:

https://wiki.ubuntu.com/Apport