Bugs item #1720241, was opened at 2007-05-16 21:38 Message generated for change (Settings changed) made by loewis You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1720241&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Parser/Compiler Group: Python 2.5 >Status: Closed >Resolution: Works For Me Priority: 5 Private: No Submitted By: ‹‹PC›› (zpcz) Assigned to: Nobody/Anonymous (nobody) Summary: Compiler is not thread safe? Initial Comment: r = ''' a(b(c[d])) ''' from threading import Thread from compiler import parse Thread(target = parse, args = (r,)).start() leads to Bus error (core dumped) When runs not in thread everything is OK. OS FreeBSD 5.4. Python 2.5.1 (seems that 2.5 also has this error) (Runs perfectly on Linux, and on FreeBSD with Python 2.4) ---------------------------------------------------------------------- Comment By: David Favor (dfavor) Date: 2007-06-02 16:53 Message: Logged In: YES user_id=370230 Originator: NO This works on Fedora 6 and Python 2.5.1 ---------------------------------------------------------------------- Comment By: Raymond Hettinger (rhettinger) Date: 2007-05-19 01:14 Message: Logged In: YES user_id=80475 Originator: NO FWIW, I cannot get the OP's script to fail on Py2.5.1 on either Windows XP or on Gentoo Linux. ---------------------------------------------------------------------- Comment By: Georg Brandl (gbrandl) Date: 2007-05-18 11:37 Message: Logged In: YES user_id=849994 Originator: NO > The compiler package is written in pure Python, so no matter what > statements it makes, it should not crash the interpreter. This is not entirely true, it uses the C-written parser module to parse its input. ---------------------------------------------------------------------- Comment By: Martin v. Löwis (loewis) Date: 2007-05-18 08:52 Message: Logged In: YES user_id=21627 Originator: NO The compiler package is written in pure Python, so no matter what statements it makes, it should not crash the interpreter. Given that this is not easily reproducable on other systems, chances are high that this is indeed an operating system bug or limitation. ---------------------------------------------------------------------- Comment By: ‹‹PC›› (zpcz) Date: 2007-05-17 17:59 Message: Logged In: YES user_id=1395738 Originator: YES Actually here is the simpler test cases: r = '(((a)))' or r = '[[[a]]]' info threads in GDB prints folowing: 4 Thread 2 (LWP 100196) 0x281a02fb in pthread_testcancel () from /usr/lib/libpthread.so.1 * 3 Thread 3 (LWP 100119) 0x28195aca in _pthread_mutex_lock () from /usr/lib/libpthread.so.1 2 Thread 1 (runnable) 0x28198207 in pthread_mutexattr_init () from /usr/lib/libpthread.so.1 I can also attach traceback if it can help. Does it means that something wrong with libpthread? ---------------------------------------------------------------------- Comment By: Gabriel Genellina (gagenellina) Date: 2007-05-17 01:30 Message: Logged In: YES user_id=479790 Originator: NO No problem either on Windows with 2.4.3 and 2.5 (2.5.1 untested) ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1720241&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
