Subject: Re: [PATCH Bug fix 0/5] Bug fix for physical memory hot-remove.

From: Toshi Kani <[email-masked]>
Date: Fri, 25 Jan 2013 11:19:37 -0700

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

Tested-by: Toshi Kani <[email-masked]>

Thanks,
-Toshi