I am also affected by this bug on my Dell Inspiron 640m.
Top causes for wakeups: 31.4% (170.9) <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 23.5% (128.2) firefox : hrtimer_start_range_ns (hrtimer_wakeup) 17.1% ( 93.1) <interrupt> : extra timer interrupt 12.4% ( 67.3) <kernel IPI> : Rescheduling interrupts 3.7% ( 20.1) xfce4-panel : hrtimer_start_range_ns (hrtimer_wakeup) 2.0% ( 11.1) postgres : hrtimer_start_range_ns (hrtimer_wakeup)
I am also affected by this bug on my Dell Inspiron 640m.
Top causes for wakeups: start_range_ ns (tick_sched_timer) start_range_ ns (hrtimer_wakeup) start_range_ ns (hrtimer_wakeup) start_range_ ns (hrtimer_wakeup)
31.4% (170.9) <kernel core> : hrtimer_
23.5% (128.2) firefox : hrtimer_
17.1% ( 93.1) <interrupt> : extra timer interrupt
12.4% ( 67.3) <kernel IPI> : Rescheduling interrupts
3.7% ( 20.1) xfce4-panel : hrtimer_
2.0% ( 11.1) postgres : hrtimer_