Bug 584284

Summary: SIGSEGV in detachShared within QWidget::removeAction cleaning up a QToolBar after an unhandled exception terminated ./lrcShow-X.py
Product: [Fedora] Fedora Reporter: viking <viking>
Component: PyQt4Assignee: Rex Dieter <rdieter>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 12CC: dmalcolm, ivazqueznet, james.antill, jonathansteffan, rdieter, than
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard: abrt_hash:a924a3cb0d32b8eb52cf68bcd687cab077793b21
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-12-03 15:37:29 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: backtrace none

Description viking 2010-04-21 08:57:26 UTC
abrt 1.0.8 detected a crash.

architecture: i686
Attached file: backtrace
cmdline: python ./lrcShow-X.py
component: python
executable: /usr/bin/python
kernel: 2.6.32.11-99.fc12.i686.PAE
package: python-2.6.2-4.fc12
rating: 4
reason: Process /usr/bin/python was killed by signal 11 (SIGSEGV)
release: Fedora release 12 (Constantine)

Comment 1 viking 2010-04-21 08:57:28 UTC
Created attachment 408020 [details]
File: backtrace

Comment 2 Dave Malcolm 2010-04-22 20:45:18 UTC
Thank you for reporting this bug.

How reproducible is this problem?  If you run the program from a terminal, is an error message printed?

What is the output of running the following command?
  rpm -qa "qt*" sip PyQt4

Looking at the backtrace, it looks like the problem occurred in the program's single thread in detachShared, within QWidget::removeAction cleaning up a QToolBar, during the error-handling cleanup.  It looks like there was an unhandled Python exception that was about to terminate your ./lrcShow-X.py script, and Python is trying to clean up, and this cleanup has a bug somewhere, perhaps inside PyQt4.

Reassigning component from "python" to "PyQt4";  hopefully the PyQt4 maintainer will be able to figure this out further or reassign as necessary.

Comment 3 Rex Dieter 2010-06-11 14:53:24 UTC
ping, reporter, please provide output of

rpm -q qt sip PyQt4

Comment 4 Bug Zapper 2010-11-03 16:39:41 UTC
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '12'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 12's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 12 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 5 Bug Zapper 2010-12-03 15:37:29 UTC
Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.