SEGV in libunityshell.so/LauncherIcon::GetQuirk(LauncherIconQuirk) during update

[Paul Sladen]

During a daily upgrade using 'update-manager' I got the following unity crash (I happened to have unity running under gdb in a screen session). I believe it was during update-manager doing installation of one of the gstream packages, but I didn't note it down exactly.

unity=3.2.2-0ubuntu2 is the /current/ version according to dpkg, so if that changed during upgrade it would have been the previous version of unity.

Program received signal SIGSEGV, Segmentation fault.

#0 0x014614ea in LauncherIcon::GetQuirk(LauncherIconQuirk) () from /usr/lib/compiz/libunityshell.so
#1 0x01461900 in LauncherIcon::Present(int, int) () from /usr/lib/compiz/libunityshell.so
#2 0x0145ab97 in LauncherController::PresentIconOwningWindow(unsigned long) () from /usr/lib/compiz/libunityshell.so
#3 0x0145b988 in UnityWindow::windowNotify(CompWindowNotify) () from /usr/lib/compiz/libunityshell.so
#4 0x080791da in CompWindow::windowNotify(CompWindowNotify) ()
#5 0x08082f0e in CompWindow::minimize() ()
#6 0x0806e50d in CompScreen::forEachWindow(boost::function<void ()(CompWindow*)>) ()
#7 0x08082f67 in CompWindow::minimize() ()
#8 0x080923c8 in CompScreen::handleEvent(_XEvent*) ()
#9 0x00b2bfc2 in PrivateCompositeScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libcomposite.so
#10 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#11 0x00b65504 in PrivateGLScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libopengl.so
#12 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#13 0x00f9d59e in DecorScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libdecor.so
#14 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#15 0x00fbf8be in ResizeScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libresize.so
#16 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#17 0x00fd6694 in MoveScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libmove.so
#18 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#19 0x00fea9b1 in PlaceScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libplace.so
#20 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#21 0x01010593 in WallScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libwall.so
#22 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#23 0x01212d69 in VPSwitchScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libvpswitch.so
#24 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#25 0x0122e3a1 in RegexScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libregex.so
#26 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#27 0x0123d406 in SessionScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libsession.so
#28 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#29 0x013207d5 in FadeScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libfade.so
#30 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#31 0x0133a1f4 in PrivateScaleScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libscale.so
#32 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#33 0x00f8651d in BaseSwitchScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libcompiztoolbox.so
#34 0x0141b8fc in StaticSwitchScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libstaticswitcher.so
#35 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#36 0x0145b9bf in UnityScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libunityshell.so
#37 0x08090aef in CompScreen::handleEvent(_XEvent*) ()
#38 0x08070e21 in PrivateScreen::processEvents() ()
#39 0x08070ef0 in CompEventSource::callback() ()
#40 0x002b9eb9 in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/libglibmm-2.4.so.1
#41 0x00325b18 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#42 0x003262e0 in ?? () from /lib/libglib-2.0.so.0
#43 0x003269a3 in g_main_loop_run () from /lib/libglib-2.0.so.0
#44 0x002bb3f5 in Glib::MainLoop::run() () from /usr/lib/libglibmm-2.4.so.1
#45 0x0806dc0a in CompScreen::eventLoop() ()
#46 0x0806568d in main ()

(Apologies if this is a dup I have a feeling I've seen something similar, but nothing pops up from grepping)

[David Barth (dbarth)]

Thanks for reporting the crash

[Jason Smith (jassmith)]

Fix for this was committed a while ago, sorry for not updating