The line in question is:
unsigned int max_in_before_reset = BARRIER_IN_THRESHOLD
- BARRIER_IN_THRESHOLD % count;
count is set the line before it to:
unsigned int count = bar->count;
(gdb) print bar->count
$2 = 0
(gdb) print count
$3 = 0
(gdb)
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https://bugs.launchpad.net/bugs/1559842
Title:
SIGFPE in pthread_barrier_destroy in glibc 2.23
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