> > > OK, this explains 2) and 3). I just looked into the code and the logic > > vs. noapictimer on SMP is completely broken.
noapictimer really doesn't make any sense on non SMP imho with the old timer architecture. That is why I never bothered to implement it. It's purely a UP hack. > ..and thanks for the explanation. > > Thanks for finding it so quickly guys. Sounds like this will be fixed > properly in 2.6.24 with the x86 merge (which hopefully brings in the hrt > patch too) There is nothing really to fix currently. Clockevents changes behaviour majorly (always using APIC timers without irq 0 backups[1]) and that causes problems that need new workarounds and new fixes (surprise surprise!) That merge would probably fix a few more such "Thomas doesn't understand the code" bugs I guess because he hacks much more on i386 than x86-64; but if the overall result will be really better is a totally different question. -Andi [1] Or let's call it "I trust all my time to the CPU" and no more southrbridge aka put all eggs in one basket. Given the trends in CPU power saving that is a quite dangerous strategy. - 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/