** Description changed:

  cookie_factory attempts to read data from /dev/random at boot, and
  blocks until it has enough random data or timesout after 30 seconds.
  
  How I can reproduce
  1. Run the Unity8 greeter as a mir server
  2. Reboot
  
  Expected behavior: Greeter is displayed as mir && USC run happily
  Actual behavior: Mir throws an exception after 30 seconds
  
- Work-around: Play with the trackpad at bootup to generate entropy.
+ Work-around:
+ Before logging in, move the mouse around lots, for at least 20 seconds. This 
will populate the kernel entropy pool sufficiently to avoid the hang and crash.

** Also affects: unity-system-compositor (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1536662

Title:
  [regression] Mir hangs and then crashes at system boot due to reading
  from /dev/random

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