From: Hugh Dickins <hugh@veritas.com>
Date: Wed, 28 May 2008 18:36:07 +0000 (+0100)
Subject: x86: fix bad pmd ffff810000207xxx(9090909090909090)
X-Git-Tag: v2.6.26-rc5~5^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2884f110d5409714f3a04eeb6d2ecd77da66b242;p=pandora-kernel.git

x86: fix bad pmd ffff810000207xxx(9090909090909090)

OGAWA Hirofumi and Fede have reported rare pmd_ERROR messages:
mm/memory.c:127: bad pmd ffff810000207xxx(9090909090909090).

Initialization's cleanup_highmap was leaving alignment filler
behind in the pmd for MODULES_VADDR: when vmalloc's guard page
would occupy a new page table, it's not allocated, and then
module unload's vfree hits the bad 9090 pmd entry left over.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

Reading git-diff-tree failed