compiz crashed with SIGSEGV in unity::launcher::Launcher::DndReset()

[Mario Bosco]

Non vedendo più alcune icone (Cartella home, terminale, etc.) ho avviato Compiz.
Non ho concluso nulla ma mentre stavo cercando come fare c'è stato il crash

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
Uname: Linux 3.2.0-17-generic i686
ApportVersion: 1.92-0ubuntu1
Architecture: i386
Date: Wed Feb 22 16:24:42 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcCmdline: compiz
ProcEnviron:
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x12f5570 <_ZN5unity8launcher8Launcher8DndResetEv+96>: mov (%esi),%edx
 PC (0x012f5570) ok
 source "(%esi)" (0x00000010) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::launcher::Launcher::DndReset() () from /usr/lib/compiz/libunityshell.so
 unity::launcher::Launcher::OnUpdateDragManagerTimeout(void*) () from /usr/lib/compiz/libunityshell.so
 ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in unity::launcher::Launcher::DndReset()
UpgradeStatus: Upgraded to precise on 2012-02-22 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin nopasswdlogin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #936923, 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.