STINNER Victor <victor.stin...@haypocalc.com> added the comment: Use a core dump: good idea!
haypo> Using my fuzzer (Fusil) on Python trunk, I got sometimes haypo> errors on multiprocessing.Pool(): haypo> haypo> Fatal Python error: PyEval_AcquireThread: NULL new thread state I read the source code of the thread module. This error means that PyThreadState_New() returns NULL which occurs if malloc() failed. I hit this error using my fuzzer because the fuzzer limits the total memory to something around 100 MB using setrlimit(). Said differently: in low memory condition, creating a new thread may exit the whole Python process if a memory allocation fail. -- Sometimes, I get another error, similar to the "NULL new thread state" error: Fatal Python error: Couldn't create autoTLSkey mapping I guess that the reason is the same: memory allocation failed. It should be the malloc() in find_key() (Python/thread.c). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue7544> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
