Ubuntu
at-spi2-core package

at-spi-bus-launcher crashed with SIGSEGV in XFlush()

Bug #829370 reported by Jean-Baptiste Lallement
68
This bug affects 14 people
Affects Status Importance Assigned to Milestone
at-spi2-core (Ubuntu)
Fix Released
High
Luke Yelavich
Oneiric
Fix Released
High
Luke Yelavich

Bug Description

TEST CASE
1. Enable a11y
2. Reboot
3. login

Result
This crash.

Related unity-panel crash: bug 829367

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: at-spi2-core 2.1.5-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
Uname: Linux 3.0.0-8-generic i686
Architecture: i386
Date: Fri Aug 19 14:01:09 2011
ExecutablePath: /usr/lib/at-spi2-core/at-spi-bus-launcher
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: /usr/lib/at-spi2-core/at-spi-bus-launcher
ProcEnviron:
 SHELL=/bin/false
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
SegvAnalysis:
 Segfault happened at: 0x2d7f7a <XFlush+26>: mov 0x4d0(%esi),%eax
 PC (0x002d7f7a) ok
 source "0x4d0(%esi)" (0x000004d0) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: at-spi2-core
StacktraceTop:
 XFlush (dpy=0x0) at ../../src/Flush.c:38
 ensure_a11y_bus (app=<optimized out>) at at-spi-bus-launcher.c:193
 handle_method_call (connection=0x8e07800, sender=0x8e0f390 ":1.5", object_path=0x8e12658 "/org/a11y/bus", interface_name=0x8e01a80 "org.a11y.Bus", method_name=0x8e127a8 "GetAddress", parameters=0x8e10790, invocation=0x8e12920, user_data=0x8e02800) at at-spi-bus-launcher.c:219
 call_in_idle_cb (user_data=0x8e12920) at /build/buildd/glib2.0-2.29.16/./gio/gdbusconnection.c:4440
 g_idle_dispatch (source=0x8e12670, callback=0x2291d0 <call_in_idle_cb>, user_data=0x8e12920) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:4780
Title: at-spi-bus-launcher crashed with SIGSEGV in XFlush()
UpgradeStatus: Upgraded to oneiric on 2011-08-17 (2 days ago)
UserGroups:

See original description
Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :
visibility: private → public
Launchpad Janitor (janitor)
Changed in at-spi2-core (Ubuntu):
status: New → Confirmed
Jean-Baptiste Lallement (jibel)
tags: added: a11y
Changed in at-spi2-core (Ubuntu):
importance: Undecided → High
Revision history for this message
C de-Avillez (hggdh2) wrote :

It seems Orca has to be enabled. In my case, enabling Orca caused an immediate crash on at-spi2. Logging out and in again added a crash on unity-panel-service.

Changed in at-spi2-core (Ubuntu Oneiric):
status: Confirmed → Triaged
assignee: nobody → Canonical Desktop Team (canonical-desktop-team)
Jean-Baptiste Lallement (jibel)
description: updated
Revision history for this message
Clint Byrum (clint-fewbar) wrote :

I got this and I don't have orca enabled (though I did briefly enable it a couple months ago to test something.. as far as I know, my computer hasn't been talking to me since then).

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

StacktraceTop:
 XFlush (dpy=0x0) at ../../src/Flush.c:38
 ensure_a11y_bus (app=<optimized out>) at at-spi-bus-launcher.c:193
 handle_method_call (connection=0x8e07800, sender=0x8e0f390 ":1.5", object_path=0x8e12658 "/org/a11y/bus", interface_name=0x8e01a80 "org.a11y.Bus", method_name=0x8e127a8 "GetAddress", parameters=0x8e10790, invocation=0x8e12920, user_data=0x8e02800) at at-spi-bus-launcher.c:219
 call_in_idle_cb (user_data=0x8e12920) at /build/buildd/glib2.0-2.29.16/./gio/gdbusconnection.c:4440
 g_idle_dispatch (source=0x8e12670, callback=0x2291d0 <call_in_idle_cb>, user_data=0x8e12920) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:4780

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 at-spi2-core (Ubuntu):
importance: High → Medium
tags: removed: need-i386-retrace
Jean-Baptiste Lallement (jibel)
Changed in at-spi2-core (Ubuntu Oneiric):
importance: Medium → High
Martin Pitt (pitti)
Changed in at-spi2-core (Ubuntu Oneiric):
assignee: Canonical Desktop Team (canonical-desktop-team) → Luke Yelavich (themuso)
Revision history for this message
Luke Yelavich (themuso) wrote :

Filed a bug upstrea: https://bugzilla.gnome.org/show_bug.cgi?id=657585

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package at-spi2-core - 2.1.90-0ubuntu1

---------------
at-spi2-core (2.1.90-0ubuntu1) oneiric; urgency=low

  * New upstream release
    - Fixed a memory leak on DBus errors.
    - Added org.a11y.Status.IsEnabled (currently a read-only property) to the
      bus launcher.
    - Fix for BGO#656004: atspi_accessible_get_relation_set returns a GArray
      again.
    - Numerous documentation fixes from Aline Bessa.
    - CLean up device listeners from disconnected applications.
    - Fix for BGO#657585: Do not crash when the bus launcher is unable to open
      the X display. (LP: #829370)
  * Update symbols
 -- Luke Yelavich <email address hidden> Fri, 02 Sep 2011 07:43:00 +1000

Changed in at-spi2-core (Ubuntu Oneiric):
status: Triaged → Fix Released
Brian Murray (brian-murray)
tags: added: testcase
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