Re: Tickless/dyntick kernel, highres timer and general time crapectomy

[Sergei Shtylyov <sshtylyov@ru.mvista.com>]

Hello.

Franck Bui-Huu wrote:

> [ weird, Gmail thought you were a spamer... ]
   Well, I guess I should thank my ISP which indeed hosts many spammers. :-)

> Sergei Shtylyov wrote:
> >    No, it doesn't. Even on dyntick kernels, interrupts do happen several
> > times a second. Dynticks have nothing to do with disabling timer
> > interrupts...
> That's true however if your system has 2 clock devices. One is the r4k-hpt
> and the other one soemthing else with a higher rating. If you don't stop
> r4k-hpt interrupts, how does it work ?
   The unwanted events just gets ignored by higher-level code, IIRC... 
Classic PowerPC CPUs have the same problem (even worse, actually) -- one can't 
disable the decrementer interrupt at all.
WBR, Sergei