Also happened to me in Gnome classic (no effects) after upgrading from 11.10.
I clicked Dash to search for program, then gnome-panel crashed. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-panel in Ubuntu. https://bugs.launchpad.net/bugs/808776 Title: gnome-panel crashed with SIGSEGV in gtk_container_forall() Status in “gnome-panel” package in Ubuntu: Confirmed Bug description: After logging into unity desktop, gnome-panel crashed ProblemType: Crash DistroRelease: Ubuntu 11.10 Package: gnome-panel 1:3.0.2-0ubuntu5 ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5 Uname: Linux 3.0-3-generic i686 Architecture: i386 Date: Mon Jul 11 13:44:11 2011 ExecutablePath: /usr/bin/gnome-panel InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) ProcCmdline: gnome-panel ProcEnviron: LANGUAGE=de_CH:de LANG=de_CH.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x7ebfef: mov 0x4c(%eax),%edx PC (0x007ebfef) ok source "0x4c(%eax)" (0xaaaaaaf6) not located in a known VMA region (needed readable region)! destination "%edx" ok SegvReason: reading unknown VMA Signal: 11 SourcePackage: gnome-panel StacktraceTop: ?? () from /usr/lib/libgtk-3.so.0 ?? () from /usr/lib/libgtk-3.so.0 gtk_container_forall () from /usr/lib/libgtk-3.so.0 ?? () from /usr/lib/libgtk-3.so.0 ?? () from /usr/lib/libgtk-3.so.0 Title: gnome-panel crashed with SIGSEGV in gtk_container_forall() UpgradeStatus: Upgraded to oneiric on 2011-07-11 (0 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/808776/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp