KDE Airplane Mode

python2.6 crashed with SIGSEGV in QWidget::metric()

Bug #418420 reported by Scott Kitterman on 2009-08-25

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	KDE Airplane Mode	Fix Released	Undecided	Rich Johnson
	python2.6 (Ubuntu)	Invalid	Medium	Unassigned

Bug Description

Binary package hint: python2.6

I was interacting with kwallet and kdenetworkmanager when this happened. I don't think either of those use Python, so I'm not sure what's to blame.

ProblemType: Crash
Architecture: i386
Date: Tue Aug 25 00:02:23 2009
Dependencies:
findutils 4.4.2-1
gcc-4.4-base 4.4.1-3ubuntu1
libc6 2.10.1-0ubuntu7
libgcc1 1:4.4.1-3ubuntu1
zlib1g 1:1.2.3.3.dfsg-13ubuntu1
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/python2.6
NonfreeKernelModules: wl
Package: python2.6-minimal 2.6.2-0ubuntu3
ProcCmdline: python /usr/bin/kairmode
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-6.26-generic
SegvAnalysis:
Segfault happened at: 0x77e50bc <_ZNK7QWidget6metricEN12QPaintDevice17PaintDeviceMetricE+60>: mov 0x8(%eax),%eax
PC (0x077e50bc) ok
source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: python2.6
StacktraceTop:
QWidget::metric (this=0x97fd200, m=QPaintDevice::PdmDpiY)
QPaintDevice::logicalDpiY (this=0xbff1e3b0, font=...,
QFont (this=0xbff1e3b0, font=..., pd=0x97fd208) at text/qfont.cpp:709
QWidgetPrivate::updateFont (this=0x97fd218, font=...)
QWidgetPrivate::setFont_helper (this=0x97fd218)
Title: python2.6 crashed with SIGSEGV in QWidget::metric()
Uname: Linux 2.6.31-6-generic i686
UserGroups:

Tags:

Related branches

lp:ubuntu/karmic/kairmode

Revision history for this message

Scott Kitterman (kitterman) wrote on 2009-08-25:

Disassembly.txt Edit (1.7 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (21.7 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (732 bytes, text/plain; charset="utf-8")
Registers.txt Edit (526 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (3.7 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (3.7 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2009-08-25: Stacktrace.txt (retraced)

Stacktrace.txt (retraced) Edit (3.8 KiB, text/plain)

StacktraceTop:QWidget::metric () from /usr/lib/libQtGui.so.4
QFont::QFont () from /usr/lib/libQtGui.so.4
QWidgetPrivate::updateFont () from /usr/lib/libQtGui.so.4
QWidgetPrivate::resolveFont () from /usr/lib/libQtGui.so.4
QWidget::setParent () from /usr/lib/libQtGui.so.4

Revision history for this message

Apport retracing service (apport) wrote on 2009-08-25: ThreadStacktrace.txt (retraced)

ThreadStacktrace.txt (retraced) Edit (3.9 KiB, text/plain)

Changed in python2.6 (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-i386-retrace

Scott Kitterman (kitterman) on 2009-08-25

visibility:

private → public

Revision history for this message

Rich Johnson (nixternal) wrote on 2009-08-25:

python wasn't to blame for this. It was a pain to figure out, but it was something with the KMenu that is issued when you right-click the icon. Definitely a KDE Airplane Mode issue.

Changed in python2.6 (Ubuntu):
status:	New → Invalid

Revision history for this message

Rich Johnson (nixternal) wrote on 2009-08-25:

Marking this fix committed as I think some of the recent code fixes I did took care of this. Time will only tell.

Google results were pointing the blame at Qt4 X11, so if this comes back we will have to really look into it, but I am hoping that my code fixes took care of this as there were quite a few initial logic issues which seem to be fixed at this time.