gnome-shell crashed with SIGSEGV in meta_window_appears_focused()

[Saulius]

Not know why the errors in time

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-shell 3.2.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu2
Architecture: i386
Date: Sun Oct 9 14:28:54 2011
ExecutablePath: /usr/bin/gnome-shell
ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
 LANG=lt_LT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x234259 <meta_window_appears_focused+9>: testb $0x1,0xb6(%edx)
 PC (0x00234259) ok
 source "$0x1" ok
 destination "0xb6(%edx)" (0x000000b6) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 meta_window_appears_focused () from /usr/lib/libmutter.so.0
 ?? () from /usr/lib/libmutter.so.0
 ?? () from /usr/lib/i386-linux-gnu/libclutter-glx-1.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libclutter-glx-1.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libclutter-glx-1.0.so.0
Title: gnome-shell crashed with SIGSEGV in meta_window_appears_focused()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 meta_window_appears_focused (window=0x0) at core/window.c:9941
 meta_window_actor_get_paint_volume (actor=0xaeed728, volume=0xaeed958) at compositor/meta-window-actor.c:693
 _clutter_actor_get_paint_volume_real (pv=0xaeed958, self=0xaeed728) at ./clutter-actor.c:12206
 _clutter_actor_get_paint_volume_mutable (self=0xaeed728) at ./clutter-actor.c:12282
 clutter_clone_get_paint_volume (self=0xaec9630, volume=0xaec9860) at ./clutter-clone.c:215

[Jeremy Bícha (jbicha)]

This doesn't look like a security vulnerability.

[Launchpad Janitor (janitor)]

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

[mauriceplus (mauriceplus)]

I see this when drag and drop a file from guest (Ubuntu) to host (windows). It block the desktop as when You go with mouse to "Activities" and then crashed.

[dino99 (9d9)]

EOL reached for that serie https://wiki.ubuntu.com/Releases