compiz crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string() from unity::launcher::HudLauncherIcon::HudLauncherIcon()::{lambda} from operator() from unity::UBusManager::OnCallback

[Daniel van Vugt]

Regression of bug 964897, still happening in quantal with unity 6.0.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: compiz-core 1:0.9.8+bzr3249-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-4.4-generic 3.5.0-rc6
Uname: Linux 3.5.0-4-generic x86_64
ApportVersion: 2.3-0ubuntu4
Architecture: amd64
CrashCounter: 1
Date: Sun Jul 15 17:49:59 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120606.2)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, no user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f937397db8b <_ZNSsC2ERKSs+11>: mov -0x8(%rax),%esi
 PC (0x7f937397db8b) ok
 source "-0x8(%rax)" (0x687fffffff8) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
 ?? () from /usr/lib/compiz/libunityshell.so
 unity::UBusManager::OnCallback(_GVariant*, void*) () from /usr/lib/compiz/libunityshell.so
 ?? () from /usr/lib/compiz/libunityshell.so
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

This crash has the same stack trace characteristics as bug #964897. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

[Apport retracing service (apport)]

StacktraceTop:
 _M_grab (__alloc2=..., __alloc1=..., this=<optimized out>) at /build/buildd/gcc-4.7-4.7.1/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:226
 std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string (this=0x7fff95199bb0, __str=...) at /build/buildd/gcc-4.7-4.7.1/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:175
 unity::launcher::HudLauncherIcon::HudLauncherIcon(unity::launcher::LauncherHideMode)::{lambda(_GVariant*)#1}::operator()(_GVariant*) const () at /usr/include/Nux-3.0/NuxCore/Property-inl.h:87
 operator() (_A_a1=@0x7fff95199bf8: 0x4b57af0, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:515
 unity::UBusManager::OnCallback (args=0x4b57af0, user_data=<optimized out>) at /build/buildd/unity-6.0.0/unity-shared/UBusWrapper.cpp:67