On Fri, Nov 20, 2009 at 12:11:55PM +0100, Johannes Berg wrote: > My 2.6.32-rc7 kvm (both guest+host, x86_64) hangs w/o "nolapic" here: > > while (lapic_cal_loops <= LAPIC_CAL_LOOPS) > cpu_relax(); > > because lapic_cal_loops never changes from -1. > > Code was last changed by > commit 2f04fa888d270951b9e0fe9e641ddd560d77ad1b > Author: Yinghai Lu <yhlu.kernel@xxxxxxxxx> > Date: Sun Aug 24 02:01:54 2008 -0700 > > x86: apic copy calibrate_APIC_clock to each other in apic_32/64.c > > but I haven't tested reverting that. > > johannes Hi Johannes, It will be not easy to revert since the commit was "preparing to merge" apic_32/64.c. It rather seems there is a problem with timer(s) other then APIC's one (ie PIT, HPET, PM). And since you're under kvm -- it could be a corner case as well. I've just booted a latest -tip with kvm without problems. I've been using | | QEMU PC emulator version 0.9.1 (kvm-84) | Perhaps you could capture console with "debug apic=debug") and to gather more info? And .config? -- Cyrill -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
