compiz crashed with SIGSEGV in dee_model_get_tag()

[Jared]

Was using Dash Home on unity to find a program and stopped typing and wanted to backspace. The lens froze up and I was not able to escape out of it or delete what I had typed. After about 45sec - 1 minute unity crashed and the compiz error was presented. Unity automatically restarted after that.

1. Using: Description: Ubuntu oneiric (development branch) Release: 11.10 beta 1
2. apt-cache policy compiz :
    compiz:
        Installed: 1:0.9.5.94+bzr2803-0ubuntu1
       Candidate: 1:0.9.5.94+bzr2803-0ubuntu1
         Version table:
           *** 1:0.9.5.94+bzr2803-0ubuntu1 0
            500 http://us.archive.ubuntu.com/ubuntu/ oneiric/main i386 Packages
           100 /var/lib/dpkg/status

      apt-cache policy unity :
          unity:
              Installed: 4.14.2-0ubuntu2
             Candidate: 4.14.2-0ubuntu2
             Version table:
               *** 4.14.2-0ubuntu2 0
              500 http://us.archive.ubuntu.com/ubuntu/ oneiric/main i386 Packages
             100 /var/lib/dpkg/status

3. When typing in the Dash Home Search, when I stopped typing and hit the backspace key; I would expect the previous character of the search string to be erased, and the search results altered accordingly. I would also expect hitting the esc key would exit out of the Dash Home and return me to the desktop.

4. Instead Dash Home screen froze, I was no longer able to type anything and was unable to escape out of it. Eventually Unity crashed and produced the Compiz crash

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.14.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-11.17-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
ApportVersion: 1.22.1-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Tue Sep 13 23:11:16 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0x1715f2c: mov (%eax),%eax
 PC (0x01715f2c) ok
 source "(%eax)" (0x00000010) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /usr/lib/libdee-1.0.so.1
 dee_model_get_tag () from /usr/lib/libdee-1.0.so.1
 ?? () from /usr/lib/libdee-1.0.so.1
 dee_model_get_tag () from /usr/lib/libdee-1.0.so.1
 unity::dash::TextureContainer* unity::dash::RowAdaptorBase::renderer<unity::dash::TextureContainer*>() () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in dee_model_get_tag()
UpgradeStatus: Upgraded to oneiric on 2011-09-12 (1 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare video

[Apport retracing service (apport)]

StacktraceTop:
 dee_sequence_model_get_tag (self=0xacbea88, iter=0xb520fa60, tag=0x1) at dee-sequence-model.c:649
 dee_model_get_tag (self=0xacbea88, iter=0xb520fa60, tag=0x1) at dee-model.c:1653
 dee_proxy_model_get_tag (self=0xad0c078, iter=0xb520fa60, tag=0x1) at dee-proxy-model.c:725
 dee_model_get_tag (self=0xad0c078, iter=0xb520fa60, tag=0x1) at dee-model.c:1653
 unity::dash::RowAdaptorBase::renderer<unity::dash::TextureContainer*> (this=0xb51fa2b4) at /build/buildd/unity-4.14.2/UnityCore/ModelRowAdaptor-inl.h:37