Re: [GIT PULL] SLAB changes for v2.6.39-rc1

From: Christoph Lameter
Date: Thu Mar 24 2011 - 14:47:32 EST



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.

Simple fix would be to do a load before the cli I guess.

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