Ubuntu
nux package

compiz crashed with SIGSEGV in nux::WindowCompositor::ResetDnDArea()

Bug #728785 reported by Karl Hegbloom
44
This bug affects 7 people
Affects Status Importance Assigned to Milestone
Nux
Fix Released
Undecided
Unassigned
Unity
Fix Released
Critical
Jason Smith
Unity 3.6.6
nux (Ubuntu)
Fix Released
Medium
Unassigned
unity (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

I was experimenting with the new interface. I'd noticed that I could drag a terminal to one side or the other to get it full height, half width, etc. Then I clicked on something in the tool panel on the left, and dragged down near the right corner of the screen... (I guess I'll have to try and reproduce this.) A small black square appeared on the desktop, which I thought was an icon, but it did not move when I used the right-click menu to have it reorganize by name. It also appeared to react the same as the rest of the desktop. At some point, compiz crashed. I could not type in this box, so I used Ctrl-Alt-F1, logged in, and ran "compiz --display :0" there to get a window manager so this text box has focus again.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.30-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Thu Mar 3 16:54:36 2011
Disassembly: => 0x1: Cannot access memory at address 0x1
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110301.7)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x1: Cannot access memory at address 0x1
 PC (0x00000001) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 ?? ()
 nux::WindowCompositor::ResetDnDArea() () from /usr/lib/libnux-0.9.so.0
 nux::WindowThread::ExecutionLoop(unsigned int) () from /usr/lib/libnux-0.9.so.0
 nux::nux_event_dispatch(_GSource*, int (*)(void*), void*) () from /usr/lib/libnux-0.9.so.0
 g_main_context_dispatch () from /lib/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in nux::WindowCompositor::ResetDnDArea()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

Revision history for this message
Karl Hegbloom (karl.hegbloom) wrote :
Revision history for this message
Karl Hegbloom (karl.hegbloom) wrote :

I should mention that the top panel and the tool bar over to the left are no longer present. I see no obvious way to log out and back in, or to restart that application... I don't even know it's name yet, sorry. :-)

Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 ?? ()
 HandleDndLeave (this=0x22cf930) at ./InputArea.h:149
 nux::WindowCompositor::ResetDnDArea (this=0x22cf930) at ./WindowCompositor.cpp:1794
 nux::WindowThread::ExecutionLoop (this=0x214c5e0, timer_id=<value optimized out>) at ./WindowThread.cpp:896
 nux::nux_event_dispatch (source=<value optimized out>, callback=<value optimized out>, user_data=0x214c5e0) at ./WindowThread.cpp:121

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in nux (Ubuntu):
importance: Undecided → Medium
tags: removed: need-amd64-retrace
Revision history for this message
Fabien Tassin (fta) wrote :

Confirmed. Exact same crash using the main Dash. For some reason, it started a DnD (unexpected), resulting in a big black square over the desktop (raised), and when I later touched the Dash again, it crashed.

Changed in nux (Ubuntu):
status: New → Confirmed
visibility: private → public
Mirco Müller (macslow)
Changed in unity:
status: New → Invalid
Revision history for this message
Fabien Tassin (fta) wrote :

Invalid? why?

Mirco Müller (macslow)
Changed in unity:
status: Invalid → New
Neil J. Patel (njpatel)
tags: added: unity-priority
Revision history for this message
simonnewton (simon-simonnewton) wrote :

This bug also affects me. May or may not be related, but when doing CTRL-ALT-F1 (F2, F3 etc) after the bug has occurred, I am unable to get a terminal. there is just a small purple bar at the top of the screen. I am using the nvidia-current binary driver.

Didier Roche-Tolomelli (didrocks)
Changed in unity:
status: New → Confirmed
Changed in nux:
status: New → Confirmed
Duncan McGreggor (oubiwann)
tags: added: dids-top-ten
Neil J. Patel (njpatel)
Changed in unity:
assignee: nobody → Jason Smith (jassmith)
importance: Undecided → Critical
milestone: none → 3.6.6
Revision history for this message
Jason Smith (jassmith) wrote :

We were not reffing the object on delete

Changed in unity:
status: Confirmed → Fix Committed
Didier Roche-Tolomelli (didrocks)
Changed in nux:
status: Confirmed → Fix Released
Changed in unity:
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package nux - 0.9.34-0ubuntu1

---------------
nux (0.9.34-0ubuntu1) natty; urgency=low

  * New upstream release.
    - compiz crashed with SIGSEGV in nux::WindowCompositor::ResetDnDArea()
      (LP: #728785)
    - unity_support_test crashed with SIGSEGV in
      nux::GpuDevice::GetOpenGLMajorVersion() (LP: #709222)
  * debian/source_nux.py, debian/libnux-0.9-common.install:
    - install an apport hook (mainly for the unity_support_test tool) reporting
      xorg info
  * debian/rules:
    - bump shlibs
 -- Didier Roche <email address hidden> Thu, 17 Mar 2011 17:55:17 +0100

Changed in nux (Ubuntu):
status: Confirmed → Fix Released
Marco Trevisan (Treviño) (3v1n0)
Changed in unity (Ubuntu):
status: New → Fix Released
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