Ubuntu

[SRU] armhf version is unusable -- task switches will cause sigsegv's

Reported by Al Stone on 2012-04-27
22
This bug affects 3 people
Affects Status Importance Assigned to Milestone
Keystone
Low
Unassigned
The Eilt project
High
Unassigned
python-greenlet (Debian)
Fix Released
Unknown
python-greenlet (Ubuntu)
High
Unassigned
Precise
High
Chuck Short

Bug Description

Impact:

In some certain cases, python-greenlet segfaults on armhf cpus running 12.04. This affects glance from running properly on ARM.

[ Test Case ]

1. Install python-greenlet on a board running an armhf cpu.
2. Run the script in the attachment called "python code showing the error".
3. See the python script cause a segfault.

[ Regression Potental ]

None, this bug has been fixed upstream and has already been fixed in Quantal. There has been no side affects of this patch.

Al Stone (ahs3) wrote :
Al Stone (ahs3) wrote :

Possible patch; this patch allows 0.3.3 to build and pass all tests on armhf

Al Stone (ahs3) wrote :

Just as an FYI: this bug was found when trying to use OpenStack keystone on armhf

Changed in python-greenlet (Debian):
status: Unknown → Confirmed
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in python-greenlet (Ubuntu):
status: New → Confirmed
Jason Hobbs (jason-hobbs) wrote :

I tested with only the changes to platform/switch_arm32_gcc.h; it fixed the problems on my end.

Joseph Heck (heckj) on 2012-05-05
Changed in keystone:
status: New → Triaged
Joseph Heck (heckj) on 2012-06-07
Changed in keystone:
importance: Undecided → Low
Robie Basak (racb) on 2012-07-17
Changed in python-greenlet (Ubuntu Precise):
milestone: none → ubuntu-12.04.1
Robie Basak (racb) on 2012-07-17
Changed in eilt:
importance: Undecided → High
status: New → Triaged
Robie Basak (racb) wrote :

Confirmed fixed in Quantal by Chuck in today's team meeting.

Changed in python-greenlet (Ubuntu):
status: Confirmed → Fix Released
Changed in python-greenlet (Ubuntu Precise):
status: New → Triaged
status: Triaged → In Progress
assignee: nobody → Al Stone (ahs3)
Robie Basak (racb) wrote :

Chuck will do this tomorrow.

Changed in python-greenlet (Ubuntu Precise):
assignee: Al Stone (ahs3) → Chuck Short (zulcss)
Chuck Short (zulcss) on 2012-07-18
summary: - armhf version is unusable -- task switches will cause sigsegv's
+ [SRU] armhf version is unusable -- task switches will cause sigsegv's
Chuck Short (zulcss) wrote :
description: updated

Hello Al, or anyone else affected,

Accepted python-greenlet into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/python-greenlet/0.3.1-1ubuntu5.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Changed in python-greenlet (Ubuntu Precise):
status: In Progress → Fix Committed
tags: added: verification-needed
James Page (james-page) on 2012-07-19
Changed in python-greenlet (Ubuntu Precise):
importance: Undecided → High
Changed in python-greenlet (Ubuntu):
importance: Undecided → High
Ante Karamatić (ivoks) wrote :

After installing the package from -proposed, nova services start and run without problems.

Ante Karamatić (ivoks) on 2012-07-20
tags: added: verification-done
removed: verification-needed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package python-greenlet - 0.3.1-1ubuntu5.1

---------------
python-greenlet (0.3.1-1ubuntu5.1) precise-proposed; urgency=low

  * Fix segfault on armhf (LP: #990162):
    - Backported patch from 0.3.3 which fixes the segfault.
 -- Chuck Short <email address hidden> Wed, 18 Jul 2012 13:07:35 -0500

Changed in python-greenlet (Ubuntu Precise):
status: Fix Committed → Fix Released
Changed in python-greenlet (Debian):
status: Confirmed → Fix Released
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