compiz crashed with SIGSEGV in LauncherHideMachine::GetShowOnEdge()

[Midhun Bose]

Binary package hint: unity

compiz crashed with SIGSEGV in LauncherHideMachine::GetShowOnEdge()

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity 3.8.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
NonfreeKernelModules: wl
Architecture: i386
CrashCounter: 1
Date: Tue Apr 12 17:15:41 2011
ExecutablePath: /usr/bin/compiz
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, user)
 LANG=en_IN
 LC_MESSAGES=en_IN.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb4e2e0b7 <_ZN19LauncherHideMachine13GetShowOnEdgeEv+7>: movzbl 0x12(%eax),%eax
 PC (0xb4e2e0b7) ok
 source "0x12(%eax)" (0x00000012) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 LauncherHideMachine::GetShowOnEdge() () from /usr/lib/compiz/libunityshell.so
 BamfLauncherIcon::UpdateIconGeometries(nux::Point3D<float>) () from /usr/lib/compiz/libunityshell.so
 BamfLauncherIcon::OnChildAdded(_BamfView*, _BamfView*, void*) () from /usr/lib/compiz/libunityshell.so
 g_cclosure_marshal_VOID__OBJECT () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 g_closure_invoke () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: compiz crashed with SIGSEGV in LauncherHideMachine::GetShowOnEdge()
UpgradeStatus: Upgraded to natty on 2011-04-11 (1 days ago)
UserGroups: adm admin cdrom dialout dip fax floppy fuse lpadmin plugdev sambashare tape video

[Apport retracing service (apport)]

StacktraceTop:
 LauncherHideMachine::GetShowOnEdge (this=0x0) at /build/buildd/unity-3.8.6/src/LauncherHideMachine.cpp:239
 ShowOnEdge (this=0x963a918, center=...) at /build/buildd/unity-3.8.6/src/Launcher.h:117
 BamfLauncherIcon::UpdateIconGeometries (this=0x963a918, center=...) at /build/buildd/unity-3.8.6/src/BamfLauncherIcon.cpp:934
 BamfLauncherIcon::OnChildAdded (view=0x8be95b8, child=0x97c98f8, data=0x963a918) at /build/buildd/unity-3.8.6/src/BamfLauncherIcon.cpp:587
 g_cclosure_marshal_VOID__OBJECT (closure=0x9743d98, return_value=0x0, n_param_values=2, param_values=0x97d1050, invocation_hint=0xbfbdf420, marshal_data=0x0) at /build/buildd/glib2.0-2.28.5/./gobject/gmarshal.c:638

[Jason Smith (jassmith)]

Please confirm this bug still happens, I cont reproduce the crash at all, it should have been fixed by some of the recent memory leak work