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SubjectRe: [patch 3/3] rtc: Limit frequency
On Fri, 22 Jul 2011, Andrew Morton wrote:

> On Fri, 22 Jul 2011 09:12:51 -0000
> Thomas Gleixner <tglx@linutronix.de> wrote:
>
> > The RTC hrtimer is self rearming. We really need to limit the
> > frequency to something sensible.
>
> > Cc: stable@kernel.org
>
> Why? What failures does the current code cause? What effect do these
> failures have upon users?

Due to the hrtimer self rearming mode a user can DoS the machine
simply because it's starved by hrtimer events.



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