compiz crashed with SIGSEGV in unity::launcher::LauncherModel::ReorderAfter()

[Matthijs]

Dragged desktop icon to the top of the launcher: freezed

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity 7.1.0+13.10.20130903.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
Uname: Linux 3.11.0-7-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.12.1-0ubuntu3
Architecture: i386
Date: Wed Sep 11 18:37:56 2013
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2013-09-11 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130911)
MarkForUpload: True
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0xb1282ac2 <_ZN5unity8launcher13LauncherModel12ReorderAfterERKN3nux9ObjectPtrINS0_20AbstractLauncherIconEEES7_+338>: mov (%eax),%edx
 PC (0xb1282ac2) ok
 source "(%eax)" (0x000001f5) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::launcher::LauncherModel::ReorderAfter(nux::ObjectPtr<unity::launcher::AbstractLauncherIcon> const&, nux::ObjectPtr<unity::launcher::AbstractLauncherIcon> const&) () from /usr/lib/compiz/libunityshell.so
 ?? () from /usr/lib/compiz/libunityshell.so
 unity::launcher::LauncherDragWindow::CancelDrag() () from /usr/lib/compiz/libunityshell.so
 sigc::internal::slot_call1<sigc::hide_functor<-1, sigc::bound_mem_functor0<void, unity::launcher::LauncherDragWindow> >, void, unsigned long>::call_it(sigc::internal::slot_rep*, unsigned long const&) () from /usr/lib/compiz/libunityshell.so
 sigc::internal::signal_emit1<void, unsigned long, sigc::nil>::emit(sigc::internal::signal_impl*, unsigned long const&) () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in unity::launcher::LauncherModel::ReorderAfter()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 unity::launcher::LauncherModel::ReorderAfter (this=0xa073b98, icon=..., other=...) at /build/buildd/unity-7.1.0+13.10.20130903.1/launcher/LauncherModel.cpp:196
 operator() (__closure=0xa941f60) at /build/buildd/unity-7.1.0+13.10.20130903.1/launcher/Launcher.cpp:2163
 operator() (this=0xa941f60) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
 sigc::internal::slot_call0<unity::launcher::Launcher::ShowDragWindow()::__lambda2, void>::call_it(sigc::internal::slot_rep *) (rep=0xa941f48) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
 emit (impl=0xac61eb0) at /usr/include/sigc++-2.0/sigc++/signal.h:776

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix. These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes. Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag “desktop-bugscrub-reopen”. See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.