Re: [Xen-devel] [PATCH] x86: avoid invalid phys_proc_id reference

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.07.15 at 05:36, <chao.p.peng@xxxxxxxxxxxxxxx> wrote:
> phys_proc_id is invalidated in remove_siblinginfo() which gets called
> before cpu_smpboot_free(). This means calling cpu_to_socket(cpu) in
> cpu_smpboot_free() is not possible to be correct.
> 
> This patch invokes remove_siblinginfo() in cpu_smpboot_free(),
> immediately after the use for cpu_to_socket(cpu).

You having picked that variant of the two I proposed, did you verify
that (as I said when talking about the alternative) there are no
hidden dependencies? If you didn't, or if for whatever else reason
there is any doubt, the less intrusive variant should be chosen at
least for now.

Jan


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