Where are core dumps written on Mac?

macos unix signals coredump
xyz picture xyz · Jan 17, 2010 · Viewed 60.4k times · Source

On Mac OS X, if I send SIGQUIT to my C program, it terminates, but there is no core dump file.

Do you have to manually enable core dumps on Mac OS X (how?), or are they written to somewhere else instead of the working directory?

Answer

xyz picture xyz · Jan 17, 2010

It seems they are suppressed by default. Running

$ ulimit -c unlimited

Will enable core dumps for the current terminal, and it will be placed in /cores as core.PID. When you open a new session, it will be set to the default value again.

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