> The best solution is to modify the illegal instruction trap to
> emulate the missing insn on x86 via cli+sti. This would be useful
> from userland as well. It doesn't win speed awards, but it's easy
> correctness without punishing Real Computers.
I've not looked at the code yet, but I guess it does use cmpxchg
to avoid races with card DMA, not with interrupts, hence cli+sti
won't help.
Have a nice fortnight
-- Martin `MJ' Mares <mj@ucw.cz> <mj@suse.cz> http://atrey.karlin.mff.cuni.cz/~mj/ "The best way to accelerate Windows is at 9.8 m / sec^2"- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/