Re: [PATCH tip/core/rcu 02/20] x86: Use common outgoing-CPU-notification code

[David Vrabel]

On 04/03/15 14:55, Boris Ostrovsky wrote:
> 
> In the meantime, it turned out that HVM guests are broken by this patch
> (with our without changes that we've been discussing), because HVM CPUs
> die with
> 
> static void xen_hvm_cpu_die(unsigned int cpu)
> {
>         xen_cpu_die(cpu);
>         native_cpu_die(cpu);
> }
> 
> Which means that cpu_wait_death() is called twice, and second call moves
> the CPU to CPU_BROKEN.
> 
> The simple solution is to stop calling native_cpu_die() above but I'd
> like to use common code in native_cpu_die(). I'll see if I can carve it
> out without too much damage to x86.

If not really been following this thread but...

Would it be preferable to refactor xen_cpu_die() instead to factor out
its the cpu_wait_death() call?

David
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