while opening pdf in evince/unity: compiz crashed with SIGSEGV in pthread_mutex_lock()

[sdaau]

Binary package hint: compiz

This is basically the same problem as my comment in:

Bug #738561 in indicator-appmenu (Ubuntu): “unity-panel-service crashed with SIGSEGV in g_cclosure_...
https://bugs.launchpad.net/ubuntu/+source/indicator-appmenu/+bug/738561

... except this time, when the freeze happened, I found:

http://askubuntu.com/questions/31849/how-do-i-restart-unity

... and issued 'unity --reset'; unity recovered, showed the PDF window that couldn't have started when the freeze happened - and this bug got collected..

Here is a copypaste of my comment on Bug #738561 - and after that, I'll paste messages I got in terminal from
'unity --reset':
------
There is a persistent bug I have on fresh Natty (alpha3) with Unity; hope this is the one. Note that I have 'scite' installed and tried to make it default text editor... So basically, I open several tabs in Nautilus in one Unity workspace, open Scite in another workspace, and open Firefox (Minefield) in third. Everything works fine for a while - and then, usually when I try to open a file either in Scite or pdf in Evince, no window appears and something in Unity freezes - usually it's the title bars (so they cannot be moved) - but then, Alt+drag sometimes works in this case, sometimes not... Another symptom is that file items in Nautilus cannot be selected with the mouse anymore.

Anyways, after this happens, cannot open files with right-click anymore, so then usually logout (clicking there is still possible, usually), and during logoff, after most windows have shut down, I can usually see that actually there is a crash report window in the background that barely becomes visible and then it too shuts down before complete logoff. So I'm not sure if this is the same bug - I hope it is, because it occured in the same situation - right-click to open a pdf; ....
----
$ unity --reset
WARNING: Unity currently default profile, so switching to metacity while resetting the values
Backend : gconf
Integration : true
Profile : unity
Adding plugins
Initializing core options...done
Initializing bailer options...done
Initializing detection options...done
Initializing composite options...done
Initializing opengl options...done
Initializing decor options...done
Initializing mousepoll options...done
Initializing vpswitch options...done
Initializing animation options...done
Initializing snap options...done
Initializing expo options...done
Initializing move options...done
Initializing place options...done
Initializing grid options...done
Initializing gnomecompat options...done
Initializing wall options...done
Initializing ezoom options...done
Initializing workarounds options...done
Initializing staticswitcher options...done
Initializing resize options...done
Initializing fade options...done
Initializing unitymtgrabhandles options...done
Initializing scale options...done
Initializing session options...done
** (<unknown>:29766): DEBUG: Unity accessibility initialization

Screen geometry changed:
  Monitor 0(primary)
   0x0x1024x600

unity-panel-service: no process found
Initializing unityshell options...done
** (<unknown>:29766): DEBUG: MaximizeIfBigEnough: Gnome-terminal window size doesn't fit
** (<unknown>:29766): DEBUG: PlaceEntry: Applications
** (<unknown>:29766): DEBUG: PlaceEntry: Commands
** (<unknown>:29766): DEBUG: PlaceEntry: Files & Folders

(<unknown>:29766): libindicator-WARNING **: Shortcut Group does not have key 'TargetEnvironment' falling back to deprecated use of 'OnlyShowIn' and 'NotShowIn'.
** (<unknown>:29766): DEBUG: Setting to primary screen rect: x=0 y=0 w=1024 h=600
** (<unknown>:29766): DEBUG: Acquired the name com.canonical.Unity.Launcher on the session bus

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window71303713: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window71303713: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): DEBUG: Connected to proxy
** (<unknown>:29766): DEBUG: Connected to proxy
** (<unknown>:29766): DEBUG: Connected to proxy

(<unknown>:29766): GLib-GIO-CRITICAL **: g_bus_own_name: assertion `g_dbus_is_name (name) && !g_dbus_is_unique_name (name)' failed

(<unknown>:29766): GLib-GIO-CRITICAL **: g_bus_watch_name: assertion `g_dbus_is_name (name)' failed

(<unknown>:29766): GLib-GIO-CRITICAL **: g_bus_own_name: assertion `g_dbus_is_name (name) && !g_dbus_is_unique_name (name)' failed

(<unknown>:29766): GLib-GIO-CRITICAL **: g_bus_watch_name: assertion `g_dbus_is_name (name)' failed

(<unknown>:29766): GLib-GIO-CRITICAL **: g_dbus_connection_register_object: assertion `object_path != NULL && g_variant_is_object_path (object_path)' failed

(<unknown>:29766): GLib-GIO-CRITICAL **: g_dbus_connection_register_object: assertion `object_path != NULL && g_variant_is_object_path (object_path)' failed
** (<unknown>:29766): DEBUG: IndicatorAdded: libapplication.so
** (<unknown>:29766): DEBUG: IndicatorAdded: libsoundmenu.so
** (<unknown>:29766): DEBUG: IndicatorAdded: libmessaging.so
** (<unknown>:29766): DEBUG: IndicatorAdded: libdatetime.so
** (<unknown>:29766): DEBUG: IndicatorAdded: libme.so
** (<unknown>:29766): DEBUG: IndicatorAdded: libsession.so
Setting Update "run_command_terminal_key"
Setting Update "fullscreen_visual_bell"

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window35651629: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window35651629: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window37748737: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window37748737: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window37748739: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): WARNING **: Failed to fetch view type at /org/ayatana/bamf/window37748739: Method "ViewType" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

** (<unknown>:29766): DEBUG: MaximizeIfBigEnough: Apport-gtk window size doesn't fit

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

** (<unknown>:29766): WARNING **: Unable to fetch children: Method "Children" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

(<unknown>:29766): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)'

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
** (<unknown>:29766): DEBUG: MaximizeIfBigEnough: Apport-gtk window size doesn't fit

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

** (<unknown>:29766): WARNING **: Unable to fetch children: Method "Children" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

(<unknown>:29766): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `<invalid>'

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

** (<unknown>:29766): WARNING **: Unable to fetch children: Method "Children" with signature "" on interface "org.ayatana.bamf.view" doesn't exist

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(<unknown>:29766): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

** (<unknown>:29766): DEBUG: MaximizeIfBigEnough: Minefield window size doesn't fit

(<unknown>:29766): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)'

(<unknown>:29766): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.4git20110322-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
CrashCounter: 1
Date: Sat Apr 2 19:15:23 2011
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110325)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110325)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_DK:en
 LANG=en_DK.UTF-8
 SHELL=/bin/bash
ProcVersionSignature_: Ubuntu 2.6.38-7.39-generic 2.6.38
SegvAnalysis:
 Segfault happened at: 0xe7233d <pthread_mutex_lock+29>: mov 0xc(%esi),%edi
 PC (0x00e7233d) ok
 source "0xc(%esi)" (0x6b736574) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
 ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
 Glib::Source::unreference() const () from /usr/lib/libglibmm-2.4.so.1
 PrivateScreen::~PrivateScreen() ()
 PrivateScreen::~PrivateScreen() ()
Title: compiz crashed with SIGSEGV in pthread_mutex_lock()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu1

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #729504, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.