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Re: NMI watchdog: BUG: soft lockup



From: James Clarke <jrtc27@jrtc27.com>
Date: Tue, 25 Oct 2016 16:59:04 +0100

> Can we do a similar thing for the TLB by iterating over all its entries? Surely
> one of the ASIs lets you do that?

Yes, you can di it using diagnostic accesses.

But in my opinion for UltraSPARC-III/IV we should do an "all flush"
and for sun4v do a context 0 flush when the range is huge.

It's so much simpler, easier to audit and validate, and is probably
cheaper in the end.


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