compiz crashed with SIGSEGV in unity::glib::Source::IsRunning()

[Dave Morley]

In vivid on a system with nvidia prime gfx I got this error on second boot up just after I started the system restore in place.

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: unity 7.3.1+15.04.20150219.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Uname: Linux 3.18.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.16.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Feb 24 13:53:27 2015
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2015-02-24 (0 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150223)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f83a1fd53f3 <_ZNK5unity4glib6Source9IsRunningEv+3>: mov 0x18(%rdi),%rdi
 PC (0x7f83a1fd53f3) ok
 source "0x18(%rdi)" (0x7f02f33d6588) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::glib::Source::IsRunning() const () from /usr/lib/libunity-core-6.0.so.9
 unity::XdndStartStopNotifierImp::DndTimeoutSetup() () 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
 unity::PluginAdapter::Notify(CompWindow*, CompWindowNotify) () from /usr/lib/compiz/libunityshell.so
 unity::UnityWindow::windowNotify(CompWindowNotify) () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in unity::glib::Source::IsRunning()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 unity::glib::Source::IsRunning() const () from /tmp/apport_sandbox_TZ_cxi/usr/lib/libunity-core-6.0.so.9
 unity::XdndStartStopNotifierImp::DndTimeoutSetup (this=0x2f91150) at /build/buildd/unity-7.3.1+15.04.20150219.2/launcher/XdndStartStopNotifierImp.cpp:40
 sigc::internal::signal_emit1<void, unsigned long, sigc::nil>::emit (impl=0x2f780d0, _A_a1=@0x7ffff7f9cb50: 52428812) at /usr/include/sigc++-2.0/sigc++/signal.h:1010
 emit (this=0x2c45078, _A_a1=@0x7ffff7f9cb50: 52428812) at /usr/include/sigc++-2.0/sigc++/signal.h:2801
 unity::PluginAdapter::Notify (this=0x2c44f70, window=window@entry=0x4748af0, notify=notify@entry=CompWindowNotifyUnmap) at /build/buildd/unity-7.3.1+15.04.20150219.2/unity-shared/PluginAdapter.cpp:176

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

The issue seems to have started in vivid
https://errors.ubuntu.com/problem/9b2b6ff77e637a4349392f55c448b543c4fd605c