Re: [Xen-devel] [timer/ticks related] dom0 hang during boot on large 1TB system

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 22/12/2009 08:51, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote:

>> Then scrub_heap_pages() occurs which eats up a lot of time.
> 
> ... and confuses Xen's own time keeping (because, depending on
> the platform timer used and it's wrap-around interval, a wrap may
> be missed if process_pending_timers() isn't being executed
> frequently enough.

Process_pending_timers() has been called on every iteration of the scrub
loop for as long as I can remember. I believe it was even you who added it.

 -- Keir



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