http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46822
--- Comment #1 from isdmter at gmail dot com 2010-12-06 15:14:45 UTC --- Oops, I forgot to show my output: $ ./main 0 0.000000 0 Segmentation fault The first two lines are the first call to f() (directly from the main()), whereas the last two correspond to the second of f() (from pthread_once()). Isdmter