| 2014-09-10 20:07:09 |
Clark Boylan |
bug |
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added bug |
| 2014-09-10 20:08:13 |
Clark Boylan |
bug watch added |
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http://bugs.python.org/issue21435 |
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| 2014-09-10 20:08:13 |
Clark Boylan |
bug task added |
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python |
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| 2014-09-10 20:09:05 |
Doug Hellmann |
bug |
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added subscriber Doug Hellmann |
| 2014-09-10 20:10:56 |
Clark Boylan |
description |
Trusty's python3.4 package is affected by python bug http://bugs.python.org/issue21435. This bug was fixed in http://hg.python.org/cpython/rev/64ba3f2de99c. Trusty should pull this fix into the python3.4 package.
Note this definitely affects some python projects. `git clone https://git.openstack.org/openstack/oslo.messaging && cd oslo.messaging && tox -repy34` will segfault due to this bug. With previous versions of python unaffected by this bug there is no segfaulting.
Now for details:
$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04
$ apt-cache policy python3.4
python3.4:
Installed: 3.4.0-2ubuntu1
Candidate: 3.4.0-2ubuntu1
Version table:
*** 3.4.0-2ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status |
Trusty's python3.4 package is affected by python bug http://bugs.python.org/issue21435. This bug was fixed in http://hg.python.org/cpython/rev/64ba3f2de99c. Trusty should pull this fix into the python3.4 package.
Note this definitely affects some python projects. `git clone https://git.openstack.org/openstack/oslo.messaging && cd oslo.messaging && edit tox.ini file, copy py33 target and rename to py34 && tox -repy34` will segfault due to this bug. With previous versions of python unaffected by this bug there is no segfaulting.
Now for details:
$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04
$ apt-cache policy python3.4
python3.4:
Installed: 3.4.0-2ubuntu1
Candidate: 3.4.0-2ubuntu1
Version table:
*** 3.4.0-2ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status |
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| 2014-09-10 20:11:37 |
Clark Boylan |
bug task added |
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oslo.messaging |
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| 2014-09-10 20:12:16 |
Doug Hellmann |
oslo.messaging: assignee |
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Clark Boylan (cboylan) |
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| 2014-09-10 23:42:43 |
Clark Boylan |
description |
Trusty's python3.4 package is affected by python bug http://bugs.python.org/issue21435. This bug was fixed in http://hg.python.org/cpython/rev/64ba3f2de99c. Trusty should pull this fix into the python3.4 package.
Note this definitely affects some python projects. `git clone https://git.openstack.org/openstack/oslo.messaging && cd oslo.messaging && edit tox.ini file, copy py33 target and rename to py34 && tox -repy34` will segfault due to this bug. With previous versions of python unaffected by this bug there is no segfaulting.
Now for details:
$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04
$ apt-cache policy python3.4
python3.4:
Installed: 3.4.0-2ubuntu1
Candidate: 3.4.0-2ubuntu1
Version table:
*** 3.4.0-2ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status |
Trusty's python3.4 package is affected by python bug http://bugs.python.org/issue21435. This bug was fixed in http://hg.python.org/cpython/rev/64ba3f2de99c. Trusty should pull this fix into the python3.4 package.
Note this definitely affects some python projects. `git clone https://git.openstack.org/openstack/oslo.messaging && cd oslo.messaging && edit tox.ini file, copy py33 target and rename to py34 && tox -repy34` will segfault due to this bug. With previous versions of python unaffected by this bug there is no segfaulting.
Now for details, broken using:
$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04
$ apt-cache policy python3.4
python3.4:
Installed: 3.4.0-2ubuntu1
Candidate: 3.4.0-2ubuntu1
Version table:
*** 3.4.0-2ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
If I install the following python3.4 packages for Unicorn on Trusty this bug is corrected. The Unicorn packages here on lp for python3.4 are python3.4.1 which includes the bug fix for this bug.
libpython3.4_3.4.1-10ubuntu1_amd64.deb libpython3.4-dev_3.4.1-10ubuntu1_amd64.deb libpython3.4-stdlib_3.4.1-10ubuntu1_amd64.deb python3.4-dbg_3.4.1-10ubuntu1_amd64.deb python3.4-minimal_3.4.1-10ubuntu1_amd64.deb libpython3.4-dbg_3.4.1-10ubuntu1_amd64.deb libpython3.4-minimal_3.4.1-10ubuntu1_amd64.deb python3.4_3.4.1-10ubuntu1_amd64.deb python3.4-dev_3.4.1-10ubuntu1_amd64.deb
Note I installed the -dbg packages too just in case I needed to use gdb but that wasn't necessary as the test case works with these newer versions of python.
$ apt-cache policy python3.4
python3.4:
Installed: 3.4.1-10ubuntu1
Candidate: 3.4.1-10ubuntu1
Version table:
*** 3.4.1-10ubuntu1 0
100 /var/lib/dpkg/status
3.4.0-2ubuntu1 0
500 http://az2.clouds.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
[Impact]
This python bug can cause python processes that tickle it to segfault python. This means there could be a significant number of python packages that are broken when run under this interpreter. The fix for this bug should be backported to avoid seemingly random and hard to debug segfaults from happening when users use python.
Unicorn's 3.4.1 packages fix this bug by including the patch at http://hg.python.org/cpython/rev/64ba3f2de99c.
[Test Case]
There is a test case detailed in the upstream bug http://bugs.python.org/issue21435, though I have been doing the following instead:
git clone https://git.openstack.org/openstack/oslo.messaging
cd oslo.messaging
git fetch https://review.openstack.org/openstack/oslo.messaging refs/changes/90/118790/2 && git checkout FETCH_HEAD
tox -repy34
# This should end with segfaulting test runners. Note if you don't have tox installed you will need to install version 1.7.2 or greater. `sudo pip install tox==1.7.2` will do this.
[Regression Potential]
The patch in question is small. If we go straight to python 3.4.1 the diff will be larger but that isn't necessary to fix this particular issue. The biggest regression potential would be that the garbage collector is newly broken by the this bug fix. Considering that the garbage collector is already broken and this patch comes with test cases to check it is less broken the risk of regression here is less than the pain of dealing with this bug. |
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| 2014-09-11 00:00:48 |
Bug Watch Updater |
python: status |
Unknown |
Fix Released |
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| 2014-09-22 14:13:04 |
Barry Warsaw |
python3.4 (Ubuntu): status |
New |
In Progress |
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| 2014-09-22 14:13:07 |
Barry Warsaw |
python3.4 (Ubuntu): importance |
Undecided |
High |
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| 2014-09-22 14:13:10 |
Barry Warsaw |
python3.4 (Ubuntu): assignee |
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Barry Warsaw (barry) |
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| 2014-09-23 17:21:54 |
falsetru |
bug |
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added subscriber falsetru |
| 2014-10-08 10:15:54 |
Matthias Klose |
nominated for series |
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Ubuntu Trusty |
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| 2014-10-08 10:15:54 |
Matthias Klose |
bug task added |
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python3.4 (Ubuntu Trusty) |
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| 2014-10-08 10:16:32 |
Matthias Klose |
python3.4 (Ubuntu Trusty): status |
New |
Triaged |
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| 2014-10-08 10:16:57 |
Matthias Klose |
python3.4 (Ubuntu): status |
In Progress |
Fix Released |
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| 2014-10-17 17:00:14 |
Adam Gandelman |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2014-12-03 13:24:36 |
Mehdi Abaakouk |
oslo.messaging: status |
New |
Invalid |
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| 2015-07-17 20:35:16 |
Steve Langasek |
python3.4 (Ubuntu Trusty): status |
Triaged |
Fix Committed |
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| 2015-07-17 20:35:18 |
Steve Langasek |
bug |
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added subscriber SRU Verification |
| 2015-07-17 20:35:24 |
Steve Langasek |
tags |
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verification-needed |
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| 2015-07-17 22:57:09 |
Clark Boylan |
tags |
verification-needed |
verification-done |
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| 2015-09-14 21:25:38 |
Barry Warsaw |
python3.4 (Ubuntu Trusty): status |
Fix Committed |
In Progress |
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