*** This bug is a duplicate of bug 983268 ***
https://bugs.launchpad.net/bugs/983268
** This bug has been marked a duplicate of bug 983268
compiz crashed with SIGSEGV in
ends_with_iter_select<__gnu_cxx::__normal_iterator<char const*,
std::basic_string<char> >, char const*, boost::algorithm::is_iequal>() from
unity::ui::PointerBarrierWrapper::EmitCurrentData()
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https://bugs.launchpad.net/bugs/1017402
Title:
compiz crashed with SIGSEGV in
unity::ui::EdgeBarrierController::Impl::OnPointerBarrierEvent()
Status in Unity:
Confirmed
Status in unity package in Ubuntu:
Confirmed
Bug description:
This is what happened before the crash:
1) I connected another monitor to my laptop's mini-DVI port (which was
previously set to span, not mirror).
2) Unity didn't recognise the monitor, so I opened up display settings.
3) The monitor was recognised, but then everything got slow temporarily.
4) In addition, the mouse cursor could move around the second monitor, but
got "stuck" when it just entered the laptop's monitor.
5) I lost all window decorations, and couldn't alt-tab, etc. I was notified
of a crash.
6) I had to switch to tty1 and run $ unity --replace . All was fine then.
This crash does not happen all the time.
ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.12-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Mon Jun 25 19:03:05 2012
Disassembly: => 0x0: Cannot access memory at address 0x0
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: compiz --replace
SegvAnalysis:
Segfault happened at: 0x0: Cannot access memory at address 0x0
PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
?? ()
unity::ui::EdgeBarrierController::Impl::OnPointerBarrierEvent(unity::ui::PointerBarrierWrapper*,
std::shared_ptr<unity::ui::BarrierEvent>) () from
/usr/lib/compiz/libunityshell.so
sigc::internal::slot_call2<sigc::bound_mem_functor2<void,
unity::ui::EdgeBarrierController::Impl, unity::ui::PointerBarrierWrapper*,
std::shared_ptr<unity::ui::BarrierEvent> >, void,
unity::ui::PointerBarrierWrapper*, std::shared_ptr<unity::ui::BarrierEvent>
>::call_it(sigc::internal::slot_rep*, unity::ui::PointerBarrierWrapper* const&,
std::shared_ptr<unity::ui::BarrierEvent> const&) () from
/usr/lib/compiz/libunityshell.so
unity::ui::PointerBarrierWrapper::EmitCurrentData() () from
/usr/lib/compiz/libunityshell.so
?? () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in
unity::ui::EdgeBarrierController::Impl::OnPointerBarrierEvent()
UpgradeStatus: Upgraded to precise on 2012-04-29 (57 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
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