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SubjectRe: Oops in 3.7-rc8 isolate_free_pages_block()
> Still travelling and am not in a position to test this properly :(.
> However, this bug feels very similar to a bug in the migration scanner where
> a pfn_valid check is missed because the start is not aligned. Henrik, when
> did this start happening? I would be a little surprised if it started between
> 3.6 and 3.7-rcX but maybe it's just easier to hit now for some reason. How
> reproducible is this? Is there anything in particular you do to trigger the
> oops? Does the following patch help any? It's only compile tested I'm afraid.

I managed to trigger the path several times with a small
memory-intensive program, and since I am still here,

Tested-by: Henrik Rydberg <rydberg@euromail.se>

Thanks!
Henrik


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