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Message-ID: <1258715515.7094.51.camel@johannes.local>
Date: Fri, 20 Nov 2009 12:11:55 +0100
From: Johannes Berg <johannes@...solutions.net>
To: linux-kernel <linux-kernel@...r.kernel.org>
Cc: Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
kvm <kvm@...r.kernel.org>, Cyrill Gorcunov <gorcunov@...nvz.org>,
Suresh Siddha <suresh.b.siddha@...el.com>,
Yinghai Lu <yhlu.kernel@...il.com>, Ingo Molnar <mingo@...e.hu>
Subject: kvm hangs w/o nolapic
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@...il.com>
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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