Comment 10 for bug 760131

Same issue here after upgrading to Natty.
Seeing 350 - 550 wakeups per second, however the top cause seems
to be the "extra timer interrupt"

Backup reduced from 3 hours to 1hr 55 minutes now.

Wakeups-from-idle per second : 499.2 interval: 3.0s
no ACPI power usage estimate available

Top causes for wakeups:
  48.3% (303.3) [extra timer interrupt]
  18.6% (117.0) chrome
  12.1% ( 76.3) [iwlagn] <interrupt>
   4.9% ( 30.7) [ahci] <interrupt>

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Maddy