Re: [5/6] 2.6.21-rc2: known regressions

[Thomas Gleixner]

On Tue, 2007-03-06 at 08:25 +0100, Ingo Molnar wrote:
> The programming of periodic tick devices needs to be saved/restored 
> across suspend/resume - otherwise we might end up with a system coming 
> up that relies on getting a PIT (or HPET) interrupt, while those devices 
> default to 'no interrupts' after powerup. (To confuse things it worked 
> to a certain degree on some systems because the lapic gets initialized 
> as a side-effect of SMP bootup.)
> 
> This suspend / resume thing was dropped unintentionally during the 
> last-minute -mm code reshuffling.
> 
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>


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