compiz crashed with SIGSEGV in AnimateValue()

[Adam Collard]

Had one window pinned to always be on top, in this case Firefox in the background. Hit a key combination - I think it might have been Shift-Super-S not quite sure, I missed what I was trying to do. The window on top rolled up to be just the title bar, tried to Ctrl-Super-Up to maximize it, then Alt-Tabbed and it hung/died.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity 7.1.1+13.10.20131004-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.18-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu1
Architecture: amd64
Date: Fri Oct 11 16:47:19 2013
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2012-08-17 (419 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.1)
MarkForUpload: True
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0x7f902a168323 <_ZNK5unity8switcher10Controller4Impl19GetCurrentSelectionEv+323>: mov (%rdi),%rbp
 PC (0x7f902a168323) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rbp" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::switcher::Controller::Impl::GetCurrentSelection() const () from /usr/lib/compiz/libunityshell.so
 unity::switcher::Controller::Impl::Hide(bool) () from /usr/lib/compiz/libunityshell.so
 unity::UnityScreen::altTabTerminateCommon(CompAction*, unsigned int, std::vector<CompOption, std::allocator<CompOption> >&) () from /usr/lib/compiz/libunityshell.so
 compiz::private_screen::EventManager::triggerRelease(CompAction*, unsigned int, std::vector<CompOption, std::allocator<CompOption> >&) () from /usr/lib/libcompiz_core.so.ABI-20130415
 PrivateScreen::triggerStateNotifyBindings(std::vector<CompOption, std::allocator<CompOption> >&, _XkbStateNotifyEvent*, std::vector<CompOption, std::allocator<CompOption> >&) () from /usr/lib/libcompiz_core.so.ABI-20130415
Title: compiz crashed with SIGSEGV in unity::switcher::Controller::Impl::GetCurrentSelection()
UpgradeStatus: Upgraded to saucy on 2013-09-29 (11 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 AnimateValue (msec_duration=80, this=0x7fffc282f2f0) at /usr/include/Nux-4.0/NuxCore/Animation-inl.h:45
 unity::switcher::Controller::Impl::Impl(unity::switcher::Controller*, unsigned int, std::function<nux::ObjectPtr<nux::BaseWindow> ()> const&) (this=0x7fffc282f270, obj=<optimized out>, load_timeout=<optimized out>, create_window=...) at /build/buildd/unity-7.1.2+13.10.20131011/launcher/SwitcherController.cpp:294
 ?? ()
 ?? ()
 PrivateAction::PrivateAction (this=0x7fffc282f2e0) at /build/buildd/compiz-0.9.10+13.10.20131011/src/action.cpp:635

[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.