Re: Utilizing rdtsc on i586?

Ingo Molnar (mingo@pc5829.hil.siemens.at)
Thu, 1 May 1997 19:53:24 +0200 (MET DST)


On Wed, 30 Apr 1997, Alan Cox wrote:

> > iopl(3);
> > __asm__("cli");
>
> If this page faults in the asm piece you lockup

we actually page fault while irqs off in other places too ... not nice but
it happens. Or is it user-space that shouldnt page fault with irqs off?

-- mingo