kvm hangs w/o nolapic
From: Johannes Berg
Date: Fri Nov 20 2009 - 06:12:19 EST
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
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