Public bug reported: I upgraded last week to Ubuntu 11.4. Since that after working some minutes, from a certain point on, the window-decorators of all windows are no more rendered and in the /var/kern.log appears a couple of lines like following:
Apr 29 15:25:08 phx00080 kernel: [ 6533.890171] show_signal_msg: 24 callbacks suppressed Apr 29 15:25:08 phx00080 kernel: [ 6533.890180] unity-window-de[1787]: segfault at 228 ip 0805be37 sp bfe63a90 error 6 in unity-window-decorator[8048000+17000] ... [manual machine reboot] ... May 2 08:36:47 phx00080 kernel: [ 2521.866814] show_signal_msg: 24 callbacks suppressed May 2 08:36:47 phx00080 kernel: [ 2521.866826] unity-window-de[1738]: segfault at 228 ip 0805be37 sp bfdf6de0 error 6 in unity-window-decorator[8048000+17000] ... [manual machine reboot] ... May 2 09:49:15 phx00080 kernel: [ 4048.226159] show_signal_msg: 24 callbacks suppressed May 2 09:49:15 phx00080 kernel: [ 4048.226169] unity-window-de[1712]: segfault at 228 ip 0805be37 sp bf937120 error 6 in unity-window-decorator[8048000+17000] 1)lsb_release -rd Description: Ubuntu 11.04 Release: 11.04 2) I don't know which is the responsible package apt-cache policy compiz compiz: Installed: 1:0.9.4+bzr20110415-0ubuntu2 Candidate: 1:0.9.4+bzr20110415-0ubuntu2 Version table: *** 1:0.9.4+bzr20110415-0ubuntu2 0 500 http://de.archive.ubuntu.com/ubuntu/ natty/main i386 Packages 100 /var/lib/dpkg/status 3) -- 4) window-decorators of all windows are no more rendered, only the content of the windows are shown. ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775430 Title: kernel bug: segfault in in unity-window-decorator -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs