unity-panel-service crashed with SIGSEGV in g_dbus_proxy_call_internal()

[Sasa Paporovic]

The unity-panel crashed on typing in "blender" fast after open up the panel.

I was using a flash player in firefox and have just closed the program blender.
I immediatelly opened up the dash-panel and typed in blender(for reopening).

The crash happends during typing.

I have unfortunally no reproducing procedure, which works for hitting this.

Right after this crasher a compize crasher happends and was identified by apport and send independend. Launchpad has identified(correctly) the compiz crasher as the already existing report:

https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1025321

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: unity-services 6.0.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0
Uname: Linux 3.5.0-6-generic x86_64
ApportVersion: 2.4-0ubuntu5
Architecture: amd64
Date: Thu Jul 26 15:04:13 2012
ExecutablePath: /usr/lib/unity/unity-panel-service
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120722)
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no username)
 LANG=de_DE.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7fc7a2e2f766: mov (%rbx),%rdx
 PC (0x7fc7a2e2f766) 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/libgio-2.0.so.0
 g_dbus_proxy_call () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libdbusmenu-glib.so.4
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_dbus_proxy_call()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 g_dbus_proxy_call_internal (proxy=0xaaaaaaaaaaaaaaaa, method_name=0x7fc7939e0a9a <Address 0x7fc7939e0a9a out of bounds>, parameters=0x7fc78c1862f0, flags=G_DBUS_CALL_FLAGS_NONE, timeout_msec=-1, fd_list=fd_list@entry=0x0, cancellable=0x0, callback=callback@entry=0, user_data=user_data@entry=0x0) at /build/buildd/glib2.0-2.33.6/./gio/gdbusproxy.c:2705
 g_dbus_proxy_call (proxy=<optimized out>, method_name=<optimized out>, parameters=<optimized out>, flags=<optimized out>, timeout_msec=<optimized out>, cancellable=<optimized out>, callback=0, user_data=0x0) at /build/buildd/glib2.0-2.33.6/./gio/gdbusproxy.c:3017
 ?? ()
 ?? ()