Messages in this thread | | | Date | Sat, 23 Jul 2011 09:17:01 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [patch 3/3] rtc: Limit frequency |
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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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