compiz crashed with SIGSEGV in ReleaseReference() from Release() from operator() from std::_Function_handler<bool(), unity::dash::previews::CoverArt::StartWaiting()::<lambda()> >::_M_invoke

[Alexander Langanke]

was using the new preview function in unity
ubuntu 12.10

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: unity 6.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
ApportVersion: 2.5.1-0ubuntu4
Architecture: amd64
CrashCounter: 1
Date: Sun Sep 2 12:16:29 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0x7f4e35aa86ba: mov 0x78(%rax),%rdi
 PC (0x7f4e35aa86ba) ok
 source "0x78(%rax)" (0x00000198) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /usr/lib/compiz/libunityshell.so
 unity::glib::Source::SourceCallback(void*) () from /usr/lib/libunity-core-6.0.so.5
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in unity::glib::Source::SourceCallback()
UpgradeStatus: Upgraded to quantal on 2012-08-26 (6 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ReleaseReference (this=0x29ae440) at /usr/include/Nux-3.0/NuxCore/ObjectPtr.h:329
 Release (this=0x29ae440) at /usr/include/Nux-3.0/NuxCore/ObjectPtr.h:316
 operator() (this=0x2b94140) at /build/buildd/unity-6.4.0/unity-shared/CoverArt.cpp:170
 std::_Function_handler<bool(), unity::dash::previews::CoverArt::StartWaiting()::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/4.6/functional:1764
 operator() (this=<optimized out>) at /usr/include/c++/4.6/functional:2161

[Omer Akram (om26er)]

Thanks for the bug report. This particular bug has already been reported and is a duplicate of bug 1044823, so is being marked as such. Any further discussion regarding the bug should occur in the other report. Feel free to report any other bugs you may find.

[Daniel van Vugt (vanvugt)]

No, doesn't look like bug 1044823

[Launchpad Janitor (janitor)]

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

[Omer Akram (om26er)]

well both had the same branch linked, so the question: does it matter?

[Andrea Azzarone (azzar1)]

Same fix, two different bugs.