Ubuntu
unity package

compiz crashed with SIGSEGV in ScaleScreen::getWindows()

Bug #1293242 reported by Antonio Cepeda Peña on 2014-03-16

This bug report is a duplicate of: Bug #1295909: Unity spread trigger ruins windows and freezes desktop. Edit Remove

20

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	Unity	Confirmed	Medium	Unassigned
	unity (Ubuntu)	Confirmed	Medium	Unassigned

Bug Description

Unity se cerró luego de utilizar la utilidad ''Unity Tweak Tool'' especificamente al activar la opción ''Despliegue de ventanas''

Sistema actualizado, he debido reiniciar el equipo.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140313-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic i686
ApportVersion: 2.13.3-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Sun Mar 16 17:58:29 2014
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2014-02-27 (17 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140224)
ProcCmdline: compiz
SegvAnalysis:
Segfault happened at: 0xb177dc54 <_ZNK11ScaleScreen10getWindowsEv+4>: mov 0x24(%eax),%eax
PC (0xb177dc54) ok
source "0x24(%eax)" (0x00000024) not located in a known VMA region (needed readable region)!
destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
ScaleScreen::getWindows() const () from /usr/lib/compiz/libscale.so
unity::UnityScreen::OnInitiateSpread() () from /usr/lib/compiz/libunityshell.so
sigc::internal::slot_call0<sigc::bound_mem_functor0<void, unity::UnityScreen>, void>::call_it(sigc::internal::slot_rep*) () from /usr/lib/compiz/libunityshell.so
sigc::internal::signal_emit0<void, sigc::nil>::emit(sigc::internal::signal_impl*) () from /usr/lib/compiz/libunityshell.so
unity::PluginAdapter::OnScreenGrabbed() () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in ScaleScreen::getWindows()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Tags:

Revision history for this message

Antonio Cepeda Peña (anleoje) wrote on 2014-03-16:

#1

Dependencies.txt Edit (31.8 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (305 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (78.5 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (817 bytes, text/plain; charset="utf-8")
Registers.txt Edit (520 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (3.1 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (10.3 KiB, text/plain; charset="utf-8")

information type:

Private → Public

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-18:

#2

StacktraceTop:
ScaleScreen::getWindows (this=0x0) at /build/buildd/compiz-0.9.11+14.04.20140310/plugins/scale/src/scale.cpp:676
unity::UnityScreen::OnInitiateSpread (this=0xa2c5600) at /build/buildd/unity-7.1.2+14.04.20140313/plugins/unityshell/src/unityshell.cpp:532
operator() (this=0xaa39864) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
operator() (this=0xaa39860) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
sigc::internal::slot_call0<sigc::bound_mem_functor0<void, unity::UnityScreen>, void>::call_it (rep=0xaa39848) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-18: Stacktrace.txt

#3

Stacktrace.txt Edit (24.3 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-18: StacktraceSource.txt

#4

StacktraceSource.txt Edit (6.7 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-18: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (34.7 KiB, text/plain)

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

Marco Trevisan (Treviño) (3v1n0) on 2014-07-24

Changed in unity:
importance:	Undecided → Medium

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-07-31:

#6

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

Changed in unity (Ubuntu):
status:	New → Confirmed

Revision history for this message

Hendrik Schrieber (hennekn) wrote on 2014-07-31:

#7

I encounter this problem on my desktop pc that has just been freshly installed with Ubuntu 14.04 on a regular basis. No changes or tweaks to Unity. The problem started right after install. I have two laptops running Ubuntu with Unity not having this problem.

The crash is triggered when you open multiple windows of the same application and click on the application icon in the launcher bar. The first time I do this compiz can recover itself and I get a Apport notification. If I accidentally trigger the bug a second time it completely crashes, does not recover and launcher, window borders as well as menubar are gone.

Using Alt+Tab to switch the window works without problems.

Changed in unity:
status:	New → Confirmed
tags:	added: amd64

Revision history for this message

ashjas (ashjas) wrote on 2014-12-03:

#8

#7 behaviour is exactly that i have been facing since last two versions of ubuntu.
I had hoped that LTS would be stable and would fix this very very annoying bug.
But no this didnt happen.
Happened for Ubuntu 14.04.1
and now with Ubuntu 14.10 aswell. NO change at all.

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