Created attachment 1210512 [details] Script to reproduce the crash Attached script crashs randomly on Python 3.4. It's a bug in Python which was fixed in Python 3.5 and newer: http://bugs.python.org/issue26617 The following commit should be backported to Python 3.4: https://hg.python.org/cpython/rev/c9b7272e2553 Note: Python 3.4 is no more maintained upstream.
In order to reproduce the crash the debug build rpm needs to be installed: python34-debug I reproduced it in mock: python3-debug crash.py python3-debug: /builddir/build/BUILD/Python-3.4.3/Modules/gcmodule.c:364: update_refs: Assertion `((gc)->gc.gc_refs >> (1)) != 0' failed. Aborted (core dumped)
FYI - I've got this ready to go if it helps at all. Seems worth it to update to 3.4.5 while we're at it. commit 3039791749fd48c4024e61fc9d27a87a74b5a8ca Author: Orion Poplawski <orion.com> Date: Tue Oct 4 11:56:40 2016 -0600 3.4.5 diff --git a/python34.spec b/python34.spec index 5602813..5880160 100644 --- a/python34.spec +++ b/python34.spec @@ -152,8 +152,8 @@ # ================== Summary: Version 3 of the Python programming language aka Python 3000 Name: python%{pyshortver} -Version: %{pybasever}.3 -Release: 8%{?dist} +Version: %{pybasever}.5 +Release: 1%{?dist} License: Python Group: Development/Languages @@ -740,42 +740,9 @@ Patch200: 00200-gettext-plural-fix.patch # Note: Backported from scl Patch201: 00201-fix-memory-leak-in-gdbm.patch -# 00202 # -# Fixes undefined behaviour in faulthandler which caused tests to hang in on x86_64 -# http://bugs.python.org/issue23433 -Patch202: 00202-fix-undefined-behaviour-in-faulthandler.patch - # test_threading fails in koji dues to it's handling of signals Patch203: 00203-disable-threading-test-koji.patch -# openssl requires DH keys to be > 768bits -Patch204: 00204-increase-dh-keys-size.patch - -# 00237 # -# CVE-2016-0772 python: smtplib StartTLS stripping attack -# https://bugzilla.redhat.com/show_bug.cgi?id=1303647 -# FIXED UPSTREAM: https://hg.python.org/cpython/rev/d590114c2394 -# Raise an error when STARTTLS fails -# Resolves: rhbz#1348973 -Patch237: 00237-CVE-2016-0772-smtplib.patch - -# 00238 # -# CVE-2016-5699 python: http protocol steam injection attack -# https://bugzilla.redhat.com/show_bug.cgi?id=1303699 -# FIXED UPSTREAM: https://hg.python.org/cpython/rev/bf3e1c9b80e9 -# Disabled HTTP header injections in http.client -# Resolves: rhbz#1348982 -Patch238: 00238-CVE-2016-5699-http-client.patch - -# 00241 # -# CVE-2016-5636: http://seclists.org/oss-sec/2016/q2/560 -# rhbz#1356365: https://bugzilla.redhat.com/show_bug.cgi?id=1356365 -# https://hg.python.org/cpython/rev/985fc64c60d6/ -# https://hg.python.org/cpython/rev/2edbdb79cd6d -# Fix possible integer overflow and heap corruption in zipimporter.get_data() -# FIXED UPSTREAM: https://bugs.python.org/issue26171 -Patch241: 00241-CVE-2016-5636-buffer-overflow-in-zipimport-module-fix.patch - # 00242 # # HTTPoxy attack (CVE-2016-1000110) # https://httpoxy.org/ @@ -1065,12 +1032,7 @@ sed -r -i s/'_PIP_VERSION = "[0-9.]+"'/'_PIP_VERSION = "%{pip_version}"'/ Lib/en %patch196 -p1 # 00197: upstream as of Python 3.4.2 # 00199: doesn't apply to RHEL 7 -%patch202 -p1 %patch203 -p1 -%patch204 -p1 -%patch237 -p1 -%patch238 -p1 -%patch241 -p1 %patch242 -p1
(In reply to Orion Poplawski from comment #2) > FYI - I've got this ready to go if it helps at all. Seems worth it to > update to 3.4.5 while we're at it. > Already pushed and building [0]. Could you maybe rebase your patch to the current tip? [0]: http://koji.fedoraproject.org/koji/taskinfo?taskID=16088369
Updated and building - http://koji.fedoraproject.org/koji/taskinfo?taskID=16088713
also, I assume the same issue applies to the EPEL6 build?
EPEL6 pushed and building now. I will then try to get the 3.4.5 commits in.
3.4.5-1 for EPEL6 building.
python34-3.4.5-1.el6 has been pushed to the Fedora EPEL 6 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-c32672ef1b
python34-3.4.5-2.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-91bccac54f
python34-3.4.5-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.
python34-3.4.5-2.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.