libzeitgeist SIGSEGV when reinstalling ZeitgeistMonitors

StacktraceTop:
 g_type_check_instance_cast (type_instance=0x8, iface_type=157010704) at /build/buildd/glib2.0-2.28.4/./gobject/gtype.c:3989
 zeitgeist_events_to_variant (events=0x95b1ac8) at zeitgeist-event.c:854
 _zeitgeist_log_install_monitor (self=<value optimized out>, monitor=0x95bf840) at zeitgeist-log.c:1193
 _zeitgeist_log_on_zg_proxy_acquired (source_object=0x95aedb0, res=0x95b9ef0, user_data=0x95a9af0) at zeitgeist-log.c:1029
 g_simple_async_result_complete (simple=0x95b9ef0) at /build/buildd/glib2.0-2.28.4/./gio/gsimpleasyncresult.c:747

@steveacab: Is this something you get every time you try to search for files or was this a one-off?

@Mikkel

not ever, but sometimes crash

Marking confirmed since we now have a dupe. I still have no idea on how to reproduce this or what the cause is though...

I got this error when I gave zeitgeist-daemon - replace in terminal

Natty

@hellojoker: Awesome! I can reproduce with 'zeitgeist-daemon --replace' thanks a bunch :-)

This was do to a refcounting bug when reinstating any ZeitgeistMonitors because of a zeitgeist-daemon restart inside libzeitgeist.

revno: 205
fixes bug(s): https://launchpad.net/bugs/742438
committer: Mikkel Kamstrup Erlandsen <email address hidden>
branch nick: MASTER
timestamp: Wed 2011-03-30 10:58:43 +0200
message:
  Fix ref counting when reinstating ZeitgeistMonitors because of a zeitgeist-daemon restart

This bug was fixed in the package libzeitgeist - 0.3.10-0ubuntu1

---------------
libzeitgeist (0.3.10-0ubuntu1) natty; urgency=low

  * New upstream release
    - Fix ref counting when reinstating ZeitgeistMonitors because of a
      zeitgeist-daemon restart (LP: #742438)
    - some documentation fix
 -- Didier Roche <email address hidden> Thu, 31 Mar 2011 15:08:19 +0200

This bug was fixed in the package unity - 3.8.2-0ubuntu1

---------------
unity (3.8.2-0ubuntu1) natty; urgency=low

  * New upstream release.
    - compiz crashed with SIGSEGV in std::_List_node_base::_M_hook()
      (LP: #711916)
    - New window tracking system breaks in the case where windows try to
      restack relative to destroyed windows that were never mapped
      (LP: #723014)
    - does not display icons until hovered (LP: #726033)
    - Unity Launcher has black spaces where icons should be (LP: #729353)
    - compiz crashed with SIGSEGV in sigc::internal::signal_emit0<void,
      sigc::nil>::emit() (LP: #729715)
    - compiz crashed with SIGSEGV in SimpleLauncherIcon::OnIconThemeChanged()
      (LP: #741652)
    - compiz crashed with SIGSEGV in free() (LP: #738864)
    - compiz crashed with SIGSEGV in g_closure_invoke() (LP: #741674)
    - compiz crashed with SIGSEGV in free() (LP: #742300)
    - Unity can't get touch the touch initialization signals from GEIS
      (LP: #742555)
    - Windows that reparent away from the root before they are mapped can
      cause other windows to become invisible (and compiz to crash)
      (LP: #743011)
    - compiz crashed with SIGSEGV in gdk_cairo_set_source_pixbuf()
      (LP: #744231)
    - [dash] Keyboard navigation not implemented as specified (LP: #608132)
    - xterms broken in unity (LP: #692463)
    - Unity opens application menu on Alt+F10 shortcut (LP: #722674)
    - First four items in Dash begin "Find" "Find" "Find" "Find" (LP: #729002)
    - Increase the size of the top left Launcher reveal area from 1px to a
      slightly larger triangle that comes out of the top left corner
      (LP: #736034)
    - Add a test case for invisible windows regressions (LP: #736876)
    - Re-sync with xquerytree to avoid stacking order issues (LP: #740465)
    - Keyboard navigation: quicklist not opening for Trash launcher item
      (LP: #741793)
    - Wrong window moves (LP: #741656)
    - compiz crashed with SIGSEGV in
      SimpleLauncherIcon::ActivateLauncherIcon() (LP: #742110)
    - Combo in the search bar did not disappear after the places was closed
      (LP: #742712)
    - Expo doesn't quit reliably when using keynav or shortcut (LP: #744196)
    - Make the BFB icon turn blue when an application goes urgent
      (LP: #744973)
    - Launcher - increase "launcher reveal %" for 'Fade and slide' launcher
      reveal transition to 65% (LP: #745602)
    - Arrows do not fade out with rest of launcher durring DND (LP: #746811)
    - Don't create windows over the launcher (LP: #688816)
    - Launcher - Indicate which application is currently focused with a
      glowing Launcher icon (LP: #676604)
    - Unity Grid is broken for multi-monitor setups (LP: #709221)
    - dynamic quicklists are not working (LP: #729074)
    - When windows open for the first time they should not hide the launcher
      (LP: #723878)
    - it is still possible to quit unity from the panel (LP: #733725)
    - Selection does not fit small icons in Unity Dash (LP: #735746)
    - Unmounting media gives no error when failed (LP: #737633)
    - ATI/fglrx workaround patch (LP: #740298)
    - "Files & Folders" tooltip say...