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

Bug #831678 reported by Lumanda on 2011-08-22
166
This bug affects 46 people
Affects Status Importance Assigned to Milestone
Unity
Fix Released
Critical
Robert Carr
unity (Ubuntu)
Critical
Robert Carr
Oneiric
Critical
Robert Carr

Bug Description

Unity crashes when trying to drag a launcher item while in keyboard navigation mode. Backtrace attached.

TEST CASE:
1. Press Alt+F1 to initiate keyboard navigation mode.
2. Drag a launcher item.

RESULT:
* Unity/Compiz crashes.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: libnux-1.0-0 1.2.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.12-generic 3.0.3
Uname: Linux 3.0.0-9-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Mon Aug 22 18:44:13 2011
Disassembly: => 0x0: Cannot access memory at address 0x0
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110803.1)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=fr_CA:fr
 PATH=(custom, no user)
 LANG=fr_CA.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x0: Cannot access memory at address 0x0
 PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 ?? ()
 nux::WindowCompositor::MouseEventCycle(nux::Event&) () from /usr/lib/libnux-1.0.so.0
 nux::WindowCompositor::ProcessEvent(nux::Event&) () from /usr/lib/libnux-1.0.so.0
 nux::WindowThread::ExecutionLoop(unsigned int) () from /usr/lib/libnux-1.0.so.0
 nux::nux_event_dispatch(_GSource*, int (*)(void*), void*) () from /usr/lib/libnux-1.0.so.0
Title: compiz crashed with SIGSEGV in nux::WindowCompositor::MouseEventCycle()
UpgradeStatus: Upgraded to oneiric on 2011-08-22 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

Related branches

Lumanda (lndala) wrote :

StacktraceTop:
 ?? ()
 nux::WindowCompositor::MouseEventCycle (this=0x95d3978, event=...) at ./WindowCompositor.cpp:380
 nux::WindowCompositor::ProcessEvent (this=0x95d3978, event=...) at ./WindowCompositor.cpp:1007
 nux::WindowThread::ExecutionLoop (this=0x913f678, timer_id=0) at ./WindowThread.cpp:997
 nux::nux_event_dispatch (source=0x9498890, callback=0, user_data=0x913f678) at ./WindowThread.cpp:121

Changed in nux (Ubuntu):
importance: Undecided → Medium
tags: removed: need-i386-retrace
Robert Roth (evfool) wrote :

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

visibility: private → public
Changed in nux (Ubuntu):
status: New → Confirmed
tags: added: iso-testing
Borbinceane Iulian (borby87) wrote :

Same action trigered the freeze for me but instead of the term I was trying to pin chromium

Changed in nux (Ubuntu):
status: Confirmed → Triaged
Omer Akram (om26er) wrote :
description: updated
Changed in nux:
importance: Undecided → Critical
Changed in nux (Ubuntu):
importance: Medium → Critical
status: Triaged → Confirmed
Changed in nux:
status: New → Confirmed
Omer Akram (om26er) wrote :

isn't it happening in compiz itself?

Changed in unity:
importance: Undecided → Critical
status: New → Confirmed
milestone: none → 4.18.0
Changed in compiz-core:
status: New → Confirmed
Omer Akram (om26er) wrote :

>> isn't it happening in compiz itself?
i might be looking at some other log.

Hernando Torque (htorque) wrote :

Omer, I'm not sure those are dupes as they have different stacktraces (they end the same, but don't start the same).

Mirco Müller (macslow) on 2011-09-26
Changed in unity:
assignee: nobody → Mirco Müller (macslow)
Mirco Müller (macslow) on 2011-09-26
Changed in nux:
assignee: nobody → Mirco Müller (macslow)
Didier Roche (didrocks) on 2011-09-26
Changed in unity:
milestone: 4.18.0 → 4.20.0
tags: added: rls-mgr-o-tracking
Robert Carr (robertcarr) on 2011-09-27
Changed in unity:
status: Confirmed → Fix Committed
Changed in nux:
status: Confirmed → Fix Committed
Changed in compiz-core:
status: Confirmed → Fix Committed
Changed in nux (Ubuntu Oneiric):
assignee: nobody → Canonical Desktop Experience Team (canonical-dx-team)
tags: added: testcase
Changed in nux (Ubuntu Oneiric):
milestone: none → ubuntu-11.10
Omer Akram (om26er) on 2011-09-29
affects: compiz-core → null
Changed in null:
status: Fix Committed → Invalid
affects: nux → null2
Changed in null2:
assignee: Mirco Müller (macslow) → nobody
importance: Critical → Undecided
status: Fix Committed → Invalid
Changed in unity:
assignee: Mirco Müller (macslow) → Robert Carr (robertcarr)
affects: nux (Ubuntu Oneiric) → unity (Ubuntu Oneiric)
Changed in unity (Ubuntu Oneiric):
assignee: Canonical Desktop Experience Team (canonical-dx-team) → Robert Carr (robertcarr)
milestone: ubuntu-11.10 → none
status: Confirmed → Fix Committed
milestone: none → ubuntu-11.10
Didier Roche (didrocks) on 2011-09-29
Changed in unity:
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :
Download full text (5.7 KiB)

This bug was fixed in the package unity - 4.20.0-0ubuntu1

---------------
unity (4.20.0-0ubuntu1) oneiric; urgency=low

  * New upstream release + cherry-pick:
    - compiz crashed with SIGSEGV in PluginClassHandler<UnityWindow,
      CompWindow, 0>::get() (LP: #835259)
    - dash does not scroll down during keyboard navigation (LP: #852506)
    - compiz crashed with SIGSEGV in _XFreeEventCookies() (LP: #851472)
    - compiz crashed with SIGSEGV in g_object_unref() (LP: #847512)
    - compiz crashed with SIGSEGV in nux::WindowCompositor::MouseEventCycle()
      (LP: #831678)
    - compiz and X can disagree on the stacking order (LP: #845719)
    - compiz crashed with SIGSEGV in unity::dash::LensView::OnResultAdded()
      (LP: #855252)
    - CCSM crashes Unity (LP: #861643)
    - compiz crashed with SIGSEGV in PrivateWindow::addWindowStackChanges()
      (LP: #862115)
    - Touch - When dragging a window with a 3 touch, dragging to the top
      should show the maximize gesture preview. (LP: #750316)
    - compiz crashed with SIGABRT in raise() (LP: #750386)
    - Launcher - Spread should not affect the state of window (LP: #764673)
    - [UIFe] Add system setting icon to Launcher (LP: #764744)
    - compiz crashed with SIGABRT in raise() [Merely unchecking the Unity
      plugin is enough to crash Compiz...] (LP: #823386)
    - Launcher - does not hide if revealed from top 24px of the left edge of
      the screen (LP: #835989)
    - Clickable areas of previously active window remains on 'Show Desktop'
      (LP: #836325)
    - Cannot search for some apps in Dash (LP: #837075)
    - Dash - Search box cursor not responding correctly to focus (LP: #839704)
    - Multi-display: Application menu only showing on primary screen
      (LP: #845212)
    - Ellipsized values in size filter (LP: #851359)
    - (oneiric) dash result expansions don't display icons (LP: #854615)
    - run the wrong command if enter is hit before the view is refreshed
      (LP: #856205)
    - Java application windows cut-off/truncated/not displayed properly
      (LP: #857201)
    - compiz crashed with SIGSEGV in sigc::signal_base::impl() (LP: #831769)
    - Minimizing a window should switch focus to the windows underneath it
      (breaks restore) (LP: #859885)
    - Ratings filter allows ratings > 1.0 (LP: #861255)
    - Serious Unity problem stuck in spread when dragging icons back to the
      dash (LP: #862045)
    - Must use hardware keyboard to perform search for applications in Unity
      (LP: #739812)
    - Files lens should also search Downloads (LP: #748915)
    - The dash crosses the monitor boundary when resolution is 1152x864 or
      lesser width (LP: #765338)
    - Dash - dragging a file outside of the Desktop Dash should close the Dash
      (LP: #764641)
    - Text in Dash search text box overflows and doesn't crop with longer
      strings; RtL input starts in wrong place (LP: #834765)
    - Where the average background colour is either very light or dark, adjust
      this value to darken/lighten in order to preserve readability
      (LP: #837993)
    - Dash does not resize when I connect to an external display and mirror
      displays (LP: #83813...

Read more...

Changed in unity (Ubuntu Oneiric):
status: Fix Committed → Fix Released
William Grant (wgrant) on 2012-02-10
no longer affects: null2
no longer affects: null
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