STINNER Victor <victor.stin...@gmail.com> added the comment: I'm unable to reproduce this error: ---------- $ valgrind --db-attach=yes --suppressions=Misc/valgrind-python.supp ./python Python 3.3.0a1+ (default:0554183066b5, Mar 20 2012, 10:47:41) ... ==20258== Invalid read of size 8 ==20258== at 0x4C9F6F: sys_update_path (sysmodule.c:1742) ==20258== by 0x4CA268: PySys_SetArgvEx (sysmodule.c:1830) ... ----------
My try: ---------- $ ./configure --with-pydebug --with-valgrind && make (...) $ valgrind --suppressions=Misc/valgrind-python.supp ./python ==10692== Memcheck, a memory error detector ==10692== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==10692== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==10692== Command: ./python ==10692== Python 3.3.0a1+ (default:f8d01c8baf6a+, Mar 26 2012, 01:12:33) [GCC 4.6.2 20111027 (Red Hat 4.6.2-1)] on linux Type "help", "copyright", "credits" or "license" for more information. >>> 1+1 2 >>> ==10692== ==10692== HEAP SUMMARY: ==10692== in use at exit: 2,896,586 bytes in 14,491 blocks ==10692== total heap usage: 86,344 allocs, 71,853 frees, 12,370,023 bytes allocated ==10692== ==10692== LEAK SUMMARY: ==10692== definitely lost: 0 bytes in 0 blocks ==10692== indirectly lost: 0 bytes in 0 blocks ==10692== possibly lost: 2,779,467 bytes in 14,287 blocks ==10692== still reachable: 117,119 bytes in 204 blocks ==10692== suppressed: 0 bytes in 0 blocks ==10692== Rerun with --leak-check=full to see details of leaked memory ==10692== ==10692== For counts of detected and suppressed errors, rerun with: -v ==10692== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 2 from 2) ---------- sysmodule.patch looks to be useless: n is not used if argc <= 0. At the revision 0554183066b5, sysmodule.c:1742 is the following line: if (argc > 0) { but sysmodule.c:1830 is: if (av == NULL) whereas it should be: sys_update_path(argc, argv); Stephan: can you redo the Valgrind test on copy the exact line where the invalid read occurs (in sysmodule.c). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue3367> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com