Red Hat Bugzilla – Bug 868261
Last modified: 2013-08-01 03:15:42 EDT
Created attachment 629933 [details]
Description of problem:
Laptop had been removed from docking station, put back in, lid closed (suspend), and opened again (wakeup). System came up normally. Typing in the screen saver password worked. But the GNOME shell environment was unusable. No keyboard input worked (except for Ctrl-Alt-F3 to switch to text console). Mouse worked only partially - It was possible to bring windows in the foreground by clicking on them, also to activate panel icons by clicking, but no real action could be performed. E.g. clicking on Nm-applet icon opened the nm-applet pop-up, but the menu items in the popup didn't react on clicks. Likewise, the menu bar items in GNOME terminal reacted on mouse movement by highlighting, but couldn't be activated. The "hot corner" didn't work. The Icons on the desktop (managed by Nautilus) were the only thing that still operated normally.
Summarizing, it seemed that X was still working but all of GNOME shell was dead.
$HOME/.xsession-errors contained the following suspicious event:
Window manager warning: Log level 8: meta_end_modal_for_plugin: assertion `compositor->modal_plugin == plugin' failed
JS ERROR: !!! Exception in callback for signal: open-state-changed
JS ERROR: !!! message = '"incorrect pop"'
JS ERROR: !!! lineNumber = '763'
JS ERROR: !!! fileName = '"/usr/share/gnome-shell/js/ui/main.js"'
JS ERROR: !!! stack = '"popModal([object _private_Shell_GenericContainer])@/usr/share/gnome-shell/js/ui/main.js:763
([object _private_Shell_GenericContainer],[object _private_Clutter_Event])@/usr/share/gnome-shell/js/ui/panelMenu.js:152
wrapper([object _private_Shell_GenericContainer],[object _private_Clutter_Event])@/usr/share/gjs-1.0/lang.js:204
I created a core dump of GNOME shell using gcore. After killing gnome-shell with kill-9 and logging back in, everything worked normally again.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Normal resume of operations
Created attachment 629944 [details]
core dump of GNOME shell created with gcore tool
Created attachment 633315 [details]
The problem occured again. I am attaching another .xsession-errors showing very similar error messages.
This time the sequence of events leading to the problem was a little different.
I had rdesktop running, connected to a virtual machine in our LAN. The VM is a Win7 VM running under a XEN/SLES11SP2 host. I disconnected my computer from the LAN without having stopped rdesktop. I plugged the laptop back in the docking station, reactivating the LAN connection and the secondary monitor. Everything seemed to work normally. I moved the rdesktop window from the laptop monitor to the secondary monitor. From that point on, the GNOME shell was stuck with the same symptoms as described previously.
I switched to a text console (the only keyboard action that still works) and killed rdesktop. Switched back to X and the GNOME shell had recovered! So obviously the shell was stuck because of the state of rdesktop, which may have been hanging because of the interrupted network connection.
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