[Bug 64120] gnome-panel dead-locked after apt-get upgrade

[Sylvain Defresne]

Public bug reported:

Binary package hint: gnome-panel

After my last apt-get upgrade (and the two previous), gnome-panel dead-
locked during the process. Trying to trace it, it appears to be blobked
trying to acquire a mutex that it already holds.

  $ ps x|grep gnome-panel
  4330 ?        Ss     0:07 gnome-panel --sm-client-id ...
  $ strace -p 4330
  futex(0xb765d120, FUTEX_WAIT, 2, NULL <unfinished ...>

It stay there until I Ctrl-C the strace. I thus installed gnome-panel-
dbg, and tried to get a backtrace (I'll attach it to this bug, with the
dpkg.log of the last upgrade so that you may have an idea of which
package where installed).

** Affects: gnome-panel (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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gnome-panel dead-locked after apt-get upgrade
https://launchpad.net/bugs/64120