It seems strange that I need to be root in order to say "place cores in my current directory" (via cat whatever /proc/sys/kernel/core_pattern). Isn't there any user-specific override for this?


2 Answers 2


On my node:

 ll /proc/sys/kernel/core_pattern 
-rw-r--r-- 1 root root 0 Mar  1 21:32 /proc/sys/kernel/core_pattern

It is only writable by root.


chmod 666 /proc/sys/kernel/core_pattern 
chmod: changing permissions of `/proc/sys/kernel/core_pattern': Operation not permitted

So I think you may not be able to override it.

  • Winston I was hoping there was a workaround not involving you having to write there directly.
    – einpoklum
    Mar 1, 2016 at 10:41

Here (Fedora 23) it is hooked up to pipe the core file to report crashes automatically via abrt. Mangle at your own risk.

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