On 03/24/2011 08:47 PM, Christoph Lameter wrote:
On Thu, 24 Mar 2011, Eric Dumazet wrote: > > this_cpu_cmpxchg16b_emu: > > pushf > > cli > > > > cmpq %gs:(%rsi), %rax > Random guess > > Masking interrupts, and accessing vmalloc() based memory for the first > time ? Hmmm.. Could be. KVM would not really disable interrupts so this may explain that the test case works here.
kvm does really disable guest interrupts (it doesn't disable host interrupts, but these are invisible to the guest).
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