Crazy is the correct word here. glibc's fork() implementation is not async-signal-safe (even though POSIX currently says it should be), so you're going to have

Crazy is the correct word here. glibc's fork() implementation is not async-signal-safe (even though POSIX currently says it should be), so you're going to have a bad time if you fork from a signal handler. https://sourceware.org/bugzilla/show_bug.cgi?id=4737 https://sourceware.org/bugzilla/show_bug.cgi?id=4737