mutter crashed with SIGSEGV in meta_compositor_sync_stack()

[Omer Akram]

Binary package hint: mutter

i don't know the exact cause of crashing but mutter crashed and i have to restart the moblin user experience

ProblemType: Crash
Architecture: i386
Date: Sun Oct 18 16:40:50 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/mutter
InstallationMedia: Ubuntu-Moblin-Remix 9.10 "Karmic Koala" - Alpha i386 (20091018)
Package: mutter 2.28.0-0ubuntu1
ProcCmdline: mutter --sm-disable
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SegvAnalysis:
 Segfault happened at: 0x8066000 <meta_compositor_sync_stack+128>: cmpb $0x0,0xa4(%eax)
 PC (0x08066000) ok
 source "$0x0" ok
 destination "0xa4(%eax)" (0x000000a4) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: mutter
StacktraceTop:
 meta_compositor_sync_stack ()
 meta_stack_tracker_sync_stack ()
 ?? ()
 ?? ()
 ?? () from /usr/lib/libclutter-glx-1.0.so.0
Title: mutter crashed with SIGSEGV in meta_compositor_sync_stack()
Uname: Linux 2.6.31-14-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:meta_compositor_sync_stack (compositor=0x9a761f8, screen=0x9a7f850,
meta_stack_tracker_sync_stack (tracker=0x9a83fe0)
stack_tracker_sync_stack_later (data=0x9a83fe0)
run_repaint_laters (data=0x0) at core/util.c:727
_clutter_run_repaint_functions () at ./clutter-main.c:2875

[Omer Akram (om26er)]

this bug also have a duplicate so this clears that i am not the only one with this bug Paul.

[Paul Larson (pwlars)]

Reporter of the duplicate said that they were getting this bug after clicking on the "back to previous site" button in moblin browser

[Omer Akram (om26er)]

but i never use moblin web browser and still crash when switching zones

[ricky (telmob)]

I'm like om26er. Switching zones seems to be the problem here. I never use moblin browser. Whenever the cpu/hd load goes up a bit and i try to switch zones, it goes back to gdm.
btw... can't save startup sessions also, maybe that's part of the bug... maybe not. :)

[Zdenko Eštok (mabuss11)]

I can confirm that. Switching betwean zones throws me out to the login screen from time to time.
But the crash of mutter i posted happened when i was playing with moblin browser. When the browser goes fullscreen i have to invoke its back and forward buttons by the Home button on my keyboard...or Windows button on some computers...so the moblin panel shows up then I pressed it again to hide it then clicked the back to previous button and mutter crashed.

[Bill Filler (bfiller)]

pushed mutter-2.28.0really2.27.5-0ubuntu1, and mutter-moblin-0.43.0-0ubuntu1moblin2 which should fix this problem. Cannot reproduce it. Our version of mutter now matches what is used by Moblin 2.1 (mutter 2.27.5) rather than newer upstream 2.28.0 that we were previously using.

[Omer Akram (om26er)]

although no crash but still requires some testing

[Omer Akram (om26er)]

i have gone into many situations where it should have crashed but not now so its fixed

[Bmagera91 (bmagera91)]

HOW TO FIX THAT ?