Ubuntu
unity-2d package

unity-2d-launcher crashed with SIGSEGV when opening a folder on a CD

Bug #831868 reported by Jean-Baptiste Lallement on 2011-08-23

260

This bug affects 31 people

Affects		Status	Importance	Assigned to	Milestone
	unity-2d	Fix Released	Critical	Unassigned	unity-2d 5.2
	unity-2d (Ubuntu)	Fix Released	Critical	Unassigned

Bug Description

Oneiric Desktop amd64.

Crashed during a live session.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-launcher 4.0.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.13-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
CasperVersion: 1.279
Date: Tue Aug 23 09:25:47 2011
ExecutablePath: /usr/bin/unity-2d-launcher
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110823)
ProcCmdline: unity-2d-launcher
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x7f6e0911a295: cmp 0x28(%rbx),%rdi
PC (0x7f6e0911a295) ok
source "0x28(%rbx)" (0x00000211) not located in a known VMA region (needed readable region)!
destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
Title: unity-2d-launcher crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

Tags:

Related branches

lp:ubuntu/precise/unity-2d

lp:unity-2d

lp:~tiagosh/unity-2d/unity-2d-shell-homelens

Merged into lp:unity-2d at revision 910

Albert Astals Cid (community): Approve on 2012-02-13

Gerry Boland: Pending requested 2012-02-10

Michał Sawicz: Pending requested 2012-02-10

Superseded for merging into lp:~unity-2d-team/unity-2d/unity-2d-shell

Albert Astals Cid (community): Approve (fun) on 2012-02-10

Gerry Boland (community): Needs Fixing on 2012-02-03

Michał Sawicz: Abstain on 2012-02-03

Revision history for this message

Jean-Baptiste Lallement (jibel) wrote on 2011-08-23:

Dependencies.txt Edit (5.5 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (685 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (69.7 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (791 bytes, text/plain; charset="utf-8")
Registers.txt Edit (774 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (1006 bytes, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (17.5 KiB, text/plain; charset="utf-8")
XsessionErrors.txt Edit (5.1 KiB, text/plain; charset="utf-8")

visibility:

private → public

Revision history for this message

Apport retracing service (apport) wrote on 2011-08-23:

StacktraceTop:
QDeclarativePropertyCache::property (engine=<optimized out>, obj=0x2805bd0, name=@0x7fff63ce3148, local=...) at qml/qdeclarativepropertycache.cpp:398
QDeclarativeObjectScriptClass::queryProperty (this=0x1f6ef40, obj=<optimized out>, name=@0x7fff63ce3148, flags=<optimized out>, evalContext=0x0, hints=...) at qml/qdeclarativeobjectscriptclass.cpp:167
QDeclarativeObjectScriptClass::queryProperty (this=0x1f6ef40, object=<optimized out>, name=@0x7fff63ce3148, flags=<optimized out>) at qml/qdeclarativeobjectscriptclass.cpp:147
QScript::DeclarativeObjectDelegate::getOwnPropertySlot (this=0x2a1a890, object=0x7f6df969ef00, exec=0x7f6df970c108, propertyName=..., slot=...) at bridge/qscriptdeclarativeobject.cpp:74
fastGetOwnPropertySlot (slot=..., propertyName=..., exec=0x7f6df970c108, this=0x7f6df969ef00) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSObject.h:382

Revision history for this message

Apport retracing service (apport) wrote on 2011-08-23: Stacktrace.txt

Stacktrace.txt Edit (2.3 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2011-08-23: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (45.1 KiB, text/plain)

Changed in unity-2d (Ubuntu):
importance:	Undecided → Medium

Martin Pitt (pitti) on 2011-08-23

tags:

removed: need-amd64-retrace

Florian Boucault (fboucault) on 2011-08-30

Changed in unity-2d:
importance:	Undecided → Critical

Launchpad Janitor (janitor) on 2011-08-30

Changed in unity-2d (Ubuntu):
status:	New → Confirmed

Florian Boucault (fboucault) on 2011-08-30

Changed in unity-2d:
status:	New → Confirmed
milestone:	none → 4.4

Didier Roche-Tolomelli (didrocks) on 2011-09-01

Changed in unity-2d:
milestone:	4.4 → 4.6

Didier Roche-Tolomelli (didrocks) on 2011-09-08

Changed in unity-2d:
milestone:	4.6 → 4.8

Didier Roche-Tolomelli (didrocks) on 2011-09-15

Changed in unity-2d:
milestone:	4.8 → 4.10

Florian Boucault (fboucault) on 2011-09-16

Changed in unity-2d:
milestone:	4.10 → none

Florian Boucault (fboucault) on 2011-09-19

Changed in unity-2d (Ubuntu):
importance:	Medium → Critical

Revision history for this message

Florian Boucault (fboucault) wrote on 2011-09-20: Re: unity-2d-launcher crashed with SIGSEGV

Bug #814749 has a much more complete stacktrace.
Bug #755907 indicates that the bug is fairly old (it exists at least since 2011-04-10).

Florian Boucault (fboucault) on 2011-09-20

summary:

- unity-2d-launcher crashed with SIGSEGV
+ unity-2d-launcher crashed with SIGSEGV when opening a folder on a CD

Revision history for this message

Florian Boucault (fboucault) wrote on 2011-09-20:

Bug #801161 has an interesting description of the circumstances of the crash.

Florian Boucault (fboucault) on 2011-09-20

Changed in unity-2d:
milestone:	none → 4.10

Didier Roche-Tolomelli (didrocks) on 2011-09-22

Changed in unity-2d:
milestone:	4.10 → 4.12

Revision history for this message

Michał Sawicz (saviq) wrote on 2011-09-22:

I can't reproduce this or any of the duplicates installed or live (today's daily, both i386 and amd64) in a VM, will try again natively. If anyone else can still reproduce, pray tell!

Revision history for this message

Dmitry Shachnev (mitya57) wrote on 2011-09-22:

Bug 853313 says that there was no logout/settings indicator («power cog») at the time of crash.
Now I remember that there was lack of it in my case too. (But I'm not sure if it's related to this crash).

Revision history for this message

Eliah Kagan (degeneracypressure) wrote on 2011-09-25:

The apport-retraced stack trace in duplicate bug 801161 doesn't look (to me) very much like the apport-retraced stack trace here. Are they perhaps not really the same bug?

Florian Boucault (fboucault) on 2011-09-29

Changed in unity-2d:
milestone:	4.12 → 4.14

Revision history for this message

Gerry Boland (gerboland) wrote on 2011-11-19:

#10

Can anyone still reproduce this bug? If so, please say.

Changed in unity-2d:
milestone:	4.14 → 5.2

Revision history for this message

Jean-Baptiste Lallement (jibel) wrote on 2011-11-20:

#11

I can't reproduce this crash anymore and there's no recent duplicate. I'm closing this report.

Changed in unity-2d (Ubuntu):
status:	Confirmed → Fix Released
Changed in unity-2d:
status:	Confirmed → Fix Released

Unity Merger (unity-merger) on 2012-02-13

Changed in unity-2d:
status:	Fix Released → Fix Committed

Florian Boucault (fboucault) on 2012-02-18

Changed in unity-2d:
status:	Fix Committed → Fix Released

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unity-2d-launcher crashed with SIGSEGV when opening a folder on a CD

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unity-2d package