Unity (and sometimes maliit) crashes after maliit-server is restarted and is used.

Please use apport-cli to file the .crash files so that they get retraced.

I've retraced the crash locally and it seems it's a crash in unity-mir:

Stacktrace:
 #0 isEmpty (this=0x5ad8aa08) at /usr/include/qt5/QtCore/qhash.h:304
 No locals.
 #1 QHash<InputArea const*, QHashDummyValue>::remove (this=this@entry=0x5ad8aa08, akey=@0x4e440c44: 0x5ac632e8) at /usr/include/qt5/QtCore/qhash.h:779
         oldSize = <optimized out>
         node = <optimized out>
 #2 0x45b1cbe0 in remove (value=@0x4e440c44: 0x5ac632e8, this=0x5ad8aa08) at /usr/include/qt5/QtCore/qset.h:88
 No locals.
 #3 MirSurface::removeInputArea (this=0x5ad8a9f0, area=area@entry=0x5ac632e8) at mirsurface.cpp:170
         res = <optimized out>
 #4 0x45b1dc40 in InputArea::doSetSurface (this=0x5ac632e8, surface=0x5fa80818) at inputarea.cpp:88
 No locals.
 #5 0x45b2101a in InputArea::qt_metacall (this=0x5ac632e8, _c=QMetaObject::WriteProperty, _id=1, _a=0x4e440db8) at moc_inputarea.cpp:163
         _v = <optimized out>
[...]

The qmlscene crash (attached retraced) is an abort of qmlscene when it failed to connect to unity8 - which was unavailable most probably due to the crash.

I'd expect maliit to have crashed from the same reason, so marking the bug for it as invalid.

Fix committed into lp:unity-mir at revision 141, scheduled for release in unity-mir, milestone phone-v1-freeze

Fix committed into lp:ubuntu-keyboard at revision 96, scheduled for release in ubuntu-keyboard, milestone Unknown

This bug was fixed in the package ubuntu-keyboard - 0.99.trunk.phablet2+14.04.20131105.1-0ubuntu1

---------------
ubuntu-keyboard (0.99.trunk.phablet2+14.04.20131105.1-0ubuntu1) trusty; urgency=low

  [ Michael Terry ]
  * Enable tests during build and document the various copyrights
    better. Adds Build-Depends on libxml2-utils, qtdeclarative5-ubuntu-
    ui-toolkit-plugin, and xvfb.

  [ Thomas Moenicke ]
  * language branch.

  [ Christopher Lee ]
  * For ease of testing the ubuntu-keyboard testsuite takes care of
    restarting maliit-server with testability for the duration of the
    tests. (LP: #1243444)

  [ Guenter Schwann ]
  * Add a helper skript to disable all settings on the device.
  * Do not cancel predictive text on backspace, but update it. (LP:
    #1202694)
  * Split up C++ and QML a bit better.

  [ Ubuntu daily release ]
  * Automatic snapshot from revision 98
 -- Ubuntu daily release <email address hidden> Tue, 05 Nov 2013 15:25:54 +0000

This bug was fixed in the package unity-mir - 0.1+14.04.20131119-0ubuntu1

---------------
unity-mir (0.1+14.04.20131119-0ubuntu1) trusty; urgency=low

  [ Gerry Boland ]
  * On MirSurface destruction, any InputAreas on that surface will be
    notified and remove their links to that surface. Fixes crash
    bug:1243444. (LP: #1243444)

  [ Alan Griffiths ]
  * Remove dependency on mir::shell::SessionManager.
  * Remove dependency on mir::surfaces::SurfaceController.
  * Remove dependency on msh::OrganisingSurfaceFactory.
  * Avoid relying on an explicit Mir typename that changes in a
    refactoring coming soon.
  * Do all the hacky surface creation customization in
    SurfaceFactory::create_surface() - and don't mention SurfaceBuilder
    at all. (That will allow Mir to get rid of that interface.).

  [ Albert Astals ]
  * Don't include the QtQml megaheader Include the one we really need.

  [ Ubuntu daily release ]
  * Automatic snapshot from revision 144
 -- Ubuntu daily release <email address hidden> Tue, 19 Nov 2013 19:11:22 +0000