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RE: [PATCH] mm: Check if section present during memory block (un)registering

From "Luck, Tony" <tony.luck@intel.com>
Newsgroups linux.kernel
Subject RE: [PATCH] mm: Check if section present during memory block (un)registering
Date 2015-08-26 01:30 +0200
Message-ID <q1vPc-4OX-5@gated-at.bofh.it> (permalink)
References <q1vct-3QR-15@gated-at.bofh.it> <q1vvQ-4st-19@gated-at.bofh.it>
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> It appears this should be backported into -stable kernels, yes?  Do you
> know which kernel versions need the fix?

For my setup the problem is first seen after:

commit bdee237c0343 " x86: mm: Use 2GB memory block size on large memory x86-64 systems"

which appeared in v3.19 and forced a 2GB memory block size.  But it could happen on older
systems depending on the block size picked based on the alignment of max_pfn.

Looking further back (to v3.15) ... we used a fixed MIN_MEMORY_BLOCK_SIZE for
all systems prior to 

commit 982792c782ef "x86, mm: probe memory block size for generic x86 64bit"

So maybe:

Cc: stable@kernel.org #v3.15

-Tony
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Thread

[PATCH] mm: Check if section present during memory block (un)registering Yinghai Lu <yinghai@kernel.org> - 2015-08-26 00:50 +0200
  Re: [PATCH] mm: Check if section present during memory block  (un)registering Andrew Morton <akpm@linux-foundation.org> - 2015-08-26 01:10 +0200
    RE: [PATCH] mm: Check if section present during memory block  (un)registering "Luck, Tony" <tony.luck@intel.com> - 2015-08-26 01:30 +0200
    Re: [PATCH] mm: Check if section present during memory block (un)registering Yinghai Lu <yinghai@kernel.org> - 2015-08-26 06:10 +0200

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