Messages in this thread |  | | | Date | Tue, 10 Jan 2006 09:27:30 +0100 | | From | Clemens Ladisch <> | | Subject | Re: [PATCH] HPET RTC emulation: add watchdog timer |
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Andi Kleen wrote: > Clemens Ladisch <lkml@cl.domainfactory-kunde.de> wrote: > > Andi Kleen wrote: > > > Clemens Ladisch wrote: > > > > To prevent the emulated RTC timer from stopping when > > > > interrupts are disabled for too long, implement the watchdog > > > > timer to restart it when needed. > > > > > > The interrupt handler should just read the time (it likely > > > has to do that anyways) > > > > Not in the current implementation. > > The standard HPET interrupt in x86-64 does this already at least.
But it's slower than just doing a mod_timer which the RTC code does _anyway_, so we could just as well use it. Especially as the watchdog timer isn't actually expected to run in normal circumstances.
Clemens
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