Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 send_IPI_mask_bitmask+0xc3/0xe0()

[Andi Kleen]

> You may want to see if this patch fixes the problem; it does *NOT* have 
> the correct error behaviour (some of the intervening layers don't 
> propagate errors), but it should make the fault go away.

The alternative would be to just take out those msr_on_cpu() 
interfaces again. Right now they are useless in the kernel,
but still cause problems.

They were only added for OpenVZ's vCPUs which they back then
promised me would hit mainline soon. But that was some time
ago and there wasn't much progress on this.

-Andi

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