> i know there are some incredibly broken (but rare) boxes where the bios > will report it only knows C1 and do C2? Is that the case you are > referring to, or is there something else too?
There are first a couple of older and not so old (Centaur) chips that generally stop the TSC in C1. And also some boxes who shouldn't have anything deeper than C2 have trouble with the TSC. For example I got a Opteron machine (which definitely shouldn't have any C2 since it's two socket) where the TSC appears to stop or at least slow down a lot in C1. And thirdly it's just unclean to add all kinds of custom hooks there. It was already ugly in NOHZ, please don't continue that. -Andi - 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/
