unity-panel-service crashed with SIGSEGV in panel_indicator_entry_accessible_get_n_children() from append_children() from add_pending_items()

[Felix Möller]

resume

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: unity-services 6.2.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1
Uname: Linux 3.5.0-10-generic x86_64
ApportVersion: 2.4-0ubuntu6
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CrashCounter: 1
Date: Thu Aug 16 00:31:07 2012
ExecutablePath: /usr/lib/unity/unity-panel-service
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120331)
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=de_DE.UTF-8
SegvAnalysis:
 Segfault happened at: 0x4063bd: mov (%rbx),%rdx
 PC (0x004063bd) ok
 source "(%rbx)" (0xaaaaaaaaaaaaaaaa) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
 g_main_dispatch (context=0x1c27cd0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:2707
 g_main_context_dispatch (context=context@entry=0x1c27cd0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3211
 g_main_context_iterate (context=0x1c27cd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3282
Title: unity-panel-service crashed with SIGSEGV in g_main_dispatch()
UpgradeStatus: Upgraded to quantal on 2012-08-02 (12 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

This crash has the same stack trace characteristics as bug #869816. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

[Apport retracing service (apport)]

StacktraceTop:
 panel_indicator_entry_accessible_get_n_children (accessible=<optimized out>) at /build/buildd/unity-6.2.0/services/panel-indicator-entry-accessible.c:256
 append_children (traversal=0x1d68ec0, accessible=0x2094690) at accessible-cache.c:235
 add_pending_items (data=<optimized out>) at accessible-cache.c:291
 g_main_dispatch (context=0x1c27cd0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:2707
 g_main_context_dispatch (context=context@entry=0x1c27cd0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3211

[Launchpad Janitor (janitor)]

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