Comment 20 for bug 872219

Ok, here's what you can do to help if you have the hanging daemon like S.O.E., Florian, and Steven are reporting:

 - Install debug symbols 'sudo apt-get install libglib2.0-0-dbg libxapian22-dbg libzeitgeist-1.0-1-dbg libdee-1.0-1-dbg'
 - Install gdb 'sudo apt-get install gdb'
 - Run 'pgrep -f unity-applications-daemon' and note the number it prints (the "PID")
 - Start gdb outputting to a log file 'sudo gdb | tee unity-applications-daemon.hang.txt 2>&1'
 - Connect gdb to the hanging process 'attach $THE_PID_FROM_PGREP'
 - (if you don't have a gdb command prompt by now, hit Ctrl-c to get one)
 - Output stack dump: 'bt full'
 - Hit Ctrl-d to exit gdb
 - Attach the file unity-applications-daemon.hang.txt to this bug
 - Have a cup of tea and a cookie. You deserve it by now! :-)