Myroslav Opyr wrote: > System Platform > freebsd4 Are you running with the pthread stack size patches applied to Python? See https://sourceforge.net/tracker/?func=detail&aid=554841&group_id=5470&atid=305470 for the patch, and recompile Python with OPT="-g -O2 -DTHREAD_STACK_SIZE=0x20000" ./configure --whatever-your-options-are