On Wed, May 29, 2019 at 04:04:23PM -0700, Andrew Morton wrote:
>
>
> (switched to email. Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> Mel, we may have a regression from e332f741a8dd1 ("mm, compaction: be
> selective about what pageblocks to clear skip hints"). The crash sure
> looks like the one which 60fce36afa9c77c7 ("mm/compaction.c: correct
> zone boundary handling when isolating pages from a pageblock") fixed,
> but Gabriele can reproduce it with 5.1.5. I've confirmed that 5.1.5
> has 60fce36afa9c77c7.
>
Sorry, I was on holidays and only playing catchup now. Does this happen
to trigger with 5.2-rc3? I ask because there were other fixes in there
with stable cc'd that have not been picked up yet. They are a poor match
for this particular bug but it would be nice to confirm.
--
Mel Gorman
SUSE Labs
