Re: [PATCH v4] x86/mce: Don't participate in rendezvous process once nmi_shootdown_cpus() was made

[Borislav Petkov]

On Thu, Feb 23, 2017 at 09:36:52PM +0800, Xunlei Pang wrote:
> We met an issue for kdump: after kdump kernel boots up,
> and there comes a broadcasted mce in first kernel, the
> other cpus remaining in first kernel will enter the old
> mce handler of first kernel, then timeout and panic due
> to MCE synchronization, finally reset the kdump cpus.
> 
> This patch lets cpus stay quiet after nmi_shootdown_cpus(),
> so after kdump boots, cpus remaining in 1st kernel should
> not do anything except clearing MCG_STATUS. This is useful
> for kdump to let vmcore dumping perform as hard as it can.

Ok, I went and rewrote the text to make it more succinct, to the point
and correct spelling and formatting.

Tony, ACK?

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