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SubjectRe: [PATCH 0/6] mm: make movable onlining suck less
On Wed 05-04-17 09:53:05, Reza Arbab wrote:
[...]
> I hope this made sense. :/

yes it certainly helped me to make some picture of your setup. I will
keep thinking about that. But one thing that is really bugging me is
how could you see low pfns in the previous oops. Please drop the last
patch and sprinkle printks down the remove_memory path to see where this
all go south. I believe that there is something in the initialization
code lurking in my code. Please also scratch the pfn_valid check in
online_pages diff. It will not help here.

I suspect I broke some hidden expectation that made add_memory vs.
remove_memory more symetric before. I will keep digging.
--
Michal Hocko
SUSE Labs

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