On Wed, 2007-07-11 at 15:58 -0700, Linus Torvalds wrote: > > On Wed, 11 Jul 2007, Chris Wright wrote: > > > > That's not quite right. Leaving the code unchanged caused breakage > > already. The PIT is damn stupid and can be sensitive to how quickly it's > > programmed. So code that enable/disable didn't change, but frequency > > with which it is called did and broke some random boxes. > > Sure. We cannot avoid *all* problems. Bugs happen. > > But at least we could try to make sure that there aren't totally > unnecessary changes in that switch-over patch. Which there definitely > were, as far as I can tell.
one note is that the "talk differently to hardware" thing is in part already tested with the 32 bit tickless code; a lot of people (80% ?) are still using the 32 bit OS on their 64 bit machines, and the 32 bit code already talks in the "new way" to this hardware.... (and since Fedora 7 already ships tickless for 32 bit there are quite a lot of people using that in practice, in addition to the kernel.org kernel users) I would expect just about all the hardware interaction issues to have popped up already because of this "run 32 bit on 64 bit hardware" thing. -- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
