Still seeing this error on current Trusty, unity version
7.2.2+14.04.20140714-0ubuntu1.1
#0 unity::switcher::Controller::Impl::GetCurrentSelection
(this=this@entry=0x1ccc970)
at
/build/buildd/unity-7.2.2+14.04.20140714/launcher/SwitcherController.cpp:691
#1 0x00007f781110e7fa in unity::switcher::Controller::Impl::Hide
(this=0x1ccc970,
accept_state=<optimized out>)
at
/build/buildd/unity-7.2.2+14.04.20140714/launcher/SwitcherController.cpp:477
#2 0x00007f781110eab6 in unity::switcher::Controller::Hide (this=<optimized
out>,
accept_state=accept_state@entry=true)
at
/build/buildd/unity-7.2.2+14.04.20140714/launcher/SwitcherController.cpp:118
#3 0x00007f7810f6f30f in unity::UnityScreen::altTabTerminateCommon
(this=0x1707200, action=0x1690340,
state=8194, options=...)
This is the function that is affected:
Selection Controller::Impl::GetCurrentSelection() const
{
AbstractLauncherIcon::Ptr application;
Window window = 0;
if (model_)
{
application = model_->Selection();
if (application)
{
if (model_->detail_selection)
{
window = model_->DetailSelectionWindow();
}
else if (model_->SelectionIsActive())
{
window = model_->DetailXids().front(); // This is line 691
}
}
}
return {application, window};
}
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Touch seeded packages, which is subscribed to unity in Ubuntu.
https://bugs.launchpad.net/bugs/1274438
Title:
compiz crashed with SIGSEGV in
unity::switcher::Controller::Impl::GetCurrentSelection()
Status in Unity:
New
Status in “unity” package in Ubuntu:
Confirmed
Bug description:
The switcher hung and then this crash occurred.
ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20131106.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jan 30 09:30:55 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2013-12-06 (54 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64
(20131016.1)
ProcCmdline: compiz
SegvAnalysis:
Segfault happened at: 0x7f07f56b85f3
<_ZNK5unity8switcher10Controller4Impl19GetCurrentSelectionEv+323>: mov
(%rdi),%rbp
PC (0x7f07f56b85f3) 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: No upgrade log present (probably fresh install)
UserGroups: adm autopilot cdrom dip fuse lpadmin plugdev sambashare sbuild
sudo
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