Comment by cmars

Same here:

  Linux (redacted) 3.2.0-41-virtual #66-Ubuntu SMP Thu Apr 25 03:47:17 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  [  413.309308] BUG: unable to handle kernel paging request at 0000001781eef4e8
  [  413.310359] IP: [<ffffffff8108d605>] atomic_dec_and_mutex_lock+0x15/0xa0
  [  413.311025] PGD 1c4ec067 PUD 0 
  [  413.311680] Oops: 0000 [#6] SMP 
  [  413.312007] CPU 0

Edit: disregard the timestamp above, VM has not synced with NTP for some time.