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[Bug 1497428] Re: kernel BUG at /build/buildd/linux-3.13.0/mm/page_alloc.c:968


The newer kernel may have some change/fix that prevents this bug, as I
haven't seen any reports of this (from google, at least) on any other
kernel.  Plus, the unusual requirement of the memory having to end at
not a multiple of 2M.

> But the “Node 0 Normal” zone, judging from (start_pfn, start_pfn+spanned) spans 100000000-f18000000. 
> The machine in question is a c4.8xlarge in EC2.

Awesome, I'll set up a vm with that flavor to see if I can reproduce
this, or at least reproduce the problematic zone setup.  Thanks!

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  kernel BUG at /build/buildd/linux-3.13.0/mm/page_alloc.c:968

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  In Progress

Bug description:
  The kernel triggers a BUG when it finds it is in move_freepages() but
  the start and end pfns for the move are in different zones.

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