It's hard to reproduce "at will". I personally run Firefox, Thunderbird, Chrome, gedit, gjiten, skype, pidgin, Gnome Terminal, and always have something like 20 windows open at a time on my main workspace.
Of note : - When alt tabbing between windows, sometimes surfaces flash to black for one instant before redraw happens. This might indicate that the core problem with metacity crashing in the first place is linked to Xorg or the nvidia driver ? - Also, with previous versions of Ubuntu, I did have metacity crash on me at times, but the session would keep on running, so I could relaunch metacity from an open terminal (or via console using : DISPLAY=:0.0 metacity ) ; The crash itself is not a problem, gnome-sessions's extremely poor handling of it is. The easiest way for me to produce this crash is to edit text in gedit, open a PDF in evince, and spend my time alt tabbing between them (which happens quite a lot as I am doing translation work). At one point, I'll start seeing redrawing artifacts (to explain : even though I switched applications, the display still shows a black surface, or the application which was on top of gedit at that time, and I have to interact with the application for redraw to occur. When I see this symptom, I know that within the next 50~100 window switchings, I will crash. The crash can even be triggered by clicking the window tab on the application bar. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to metacity in Ubuntu. https://bugs.launchpad.net/bugs/1507764 Title: metacity crashed with signal 5 in _XEventsQueued() ; forcing gnome session to logout Status in metacity package in Ubuntu: Confirmed Bug description: This bug seemed to occur already since earlier versions of Ubuntu, and usually would just end up leaving me with undecorated windows, from which recovery was as easy as restarting metacity by hand, but in this release of Ubuntu (15.04), it seems gnome-session tries to restart it too many times in a too short span, and then decides arbitrarily that it failed so bad it has to kill the whole session. So, while the metacity bug is really a thing, my real problem actually might be a gnome-session-bin bug. I expect metacity crashing would not bring down the whole session, as is the case currently. At any rate, this is extremely annoying, I am hitting this bug about every two days, and because of it and the regression in crash handling, I end up losing all my windows and running programs. (In all fairness, I am suspecting a hardware issue, but the problem remains that a sub process dying should not cause the parent process to die like this) ProblemType: Crash DistroRelease: Ubuntu 15.04 Package: metacity 1:3.14.3-1ubuntu7 ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7 Uname: Linux 3.19.0-31-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 CrashCounter: 1 CurrentDesktop: GNOME-Flashback:Unity Date: Tue Oct 20 05:19:37 2015 ExecutablePath: /usr/bin/metacity InstallationDate: Installed on 2010-01-30 (2088 days ago) InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027.1) ProcCmdline: metacity ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/zsh Signal: 5 SourcePackage: metacity StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6 _XGetRequest () from /usr/lib/x86_64-linux-gnu/libX11.so.6 XFixesCopyRegion () from /usr/lib/x86_64-linux-gnu/libXfixes.so.3 Title: metacity crashed with signal 5 in _XEventsQueued() UpgradeStatus: Upgraded to vivid on 2015-09-05 (44 days ago) UserGroups: adm admin audio cdrom dialout libvirtd lpadmin plugdev pulse pulse-access sambashare vboxusers video To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1507764/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
