[Python-Dev] head crashing (was: Fwd: [Python-checkins] buildbot warnings in x86 mvlgcc trunk) (original) (raw)

Neal Norwitz nnorwitz at gmail.com
Tue May 1 09:27:30 CEST 2007

In rev 54982 (the first time this crash was seen), I see something which might create a problem. In python/trunk/Modules/posixmodule.c (near line 6300):

Can you call PyMem_FREE() without the GIL held? I couldn't find it documented either way.

Of the 3 failures I know of, below is the intersection of the tests that were run prior to crashing:

set(['test_threadedtempfile', 'test_cgi', 'test_dircache', 'test_set', 'test_binascii', 'test_imp', 'test_multibytecodec', 'test_weakref', 'test_ftplib', 'test_posixpath', 'test_xmlrpc', 'test_urllibnet', 'test_old_mailbox', 'test_distutils', 'test_site', 'test_runpy', 'test_fork1', 'test_traceback'])

n

On 4/30/07, Neal Norwitz <nnorwitz at gmail.com> wrote:

This is the third time I've seen a crash on 2 different machines. This is the first time I noticed this unexplained crash:

http://python.org/dev/buildbot/all/amd64%20gentoo%20trunk/builds/1983/step-test/0 That was at r54982. I tried to reproduce this: with a non-debug build, with a debug build, with valgrind with both types of build. I could never reproduce it. Valgrind did not report any errors either. Here is the third failure: http://python.org/dev/buildbot/all/amd64%20gentoo%20trunk/builds/1986/step-test/0 The failure below prints: python: Objects/obmalloc.c:746: PyObjectMalloc: Assertion `bp != ((void *)0)' failed. which probably doesn't really help since the corruption has already occurred. See http://python.org/dev/buildbot/all/x86%20mvlgcc%20trunk/builds/497/step-test/0 Anyone have ideas what might have caused this? n -- ---------- Forwarded message ---------- From: buildbot at python.org <buildbot at python.org> Date: Apr 30, 2007 11:17 PM Subject: [Python-checkins] buildbot warnings in x86 mvlgcc trunk To: python-checkins at python.org

The Buildbot has detected a new failure of x86 mvlgcc trunk. Full details are available at: http://www.python.org/dev/buildbot/all/x86%2520mvlgcc%2520trunk/builds/497 Buildbot URL: http://www.python.org/dev/buildbot/all/ Build Reason: Build Source Stamp: [branch trunk] HEAD Blamelist: georg.brandl Build had warnings: warnings test Excerpt from the test logfile: make: *** [buildbottest] Aborted (core dumped) sincerely, -The Buildbot

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