On 01/26/2013 02:19 AM, Toshi Kani wrote:

On Tue, 2013-01-22 at 19:42 +0800, Tang Chen wrote:

quoted

Here are some bug fix patches for physical memory hot-remove. All these
patches are based on the latest -mm tree.
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm

And patch1 and patch3 are very important.
patch1: free compound pages when freeing memmap, otherwise the kernel
         will panic the next time memory is hot-added.
patch3: the old way of freeing pagetable pages was wrong. We should never
         split larger pages into small ones.


Lai Jiangshan (1):
   Bug-fix: mempolicy: fix is_valid_nodemask()

Tang Chen (3):
   Bug fix: Do not split pages when freeing pagetable pages.
   Bug fix: Fix section mismatch problem of
     release_firmware_map_entry().
   Bug fix: Fix the doc format in drivers/firmware/memmap.c

Wen Congyang (1):
   Bug fix: consider compound pages when free memmap

  arch/x86/mm/init_64.c     |  148 ++++++++++++++-------------------------------
  drivers/firmware/memmap.c |   16 +++---
  mm/mempolicy.c            |   36 +++++++----
  mm/sparse.c               |    2 +-
  4 files changed, 77 insertions(+), 125 deletions(-)

This patchset fixed a blocker panic I was hitting in my memory hot-plug
testing.  Memory hotplug works fine with this patchset (for testing my
hotplug framework patchset :).  For the series:

Hi Toshi-san,

Thank you for testing. :)

Tested-by: Toshi Kani<redacted>

Thanks,
-Toshi