From: Greg KH <gregkh@suse.de>
To: linux-kernel@vger.kernel.org, stable@kernel.org,
Oliver Pinter <oliver.pntr@gmail.com>
Cc: Justin Forbes <jmforbes@linuxtx.org>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>,
Theodore Ts'o <tytso@mit.edu>,
Randy Dunlap <rdunlap@xenotime.net>,
Dave Jones <davej@redhat.com>,
Chuck Wolber <chuckw@quantumlinux.com>,
Chris Wedgwood <reviews@ml.cw.f00f.org>,
Michael Krufky <mkrufky@linuxtv.org>,
Chuck Ebbert <cebbert@redhat.com>,
Domenico Andreoli <cavokz@gmail.com>, Willy Tarreau <w@1wt.eu>,
Rodrigo Rubira Branco <rbranco@la.checkpoint.com>,
Jake Edge <jake@lwn.net>, Eugene Teo <eteo@redhat.com>,
torvalds@linux-foundation.org, akpm@linux-foundation.org,
alan@lxorguk.ukuu.org.uk, linux-mm@kvack.org,
Jack Steiner <steiner@sgi.com>, Ingo Molnar <mingo@elte.hu>
Subject: [patch 17/29] x86: fix kernel_physical_mapping_init() for large x86 systems
Date: Wed, 30 Jul 2008 16:27:19 -0700 [thread overview]
Message-ID: <20080730232719.GR30670@suse.de> (raw)
In-Reply-To: <20080730232451.GA30670@suse.de>
[-- Attachment #1: x86-fix-kernel_physical_mapping_init-for-large-x86-systems.patch --]
[-- Type: text/plain, Size: 1226 bytes --]
2.6.25-stable review patch. If anyone has any objections, please let us
know.
------------------
From: Ingo Molnar <mingo@elte.hu>
based on e22146e610bb7aed63282148740ab1d1b91e1d90 upstream
Fix bug in kernel_physical_mapping_init() that causes kernel
page table to be built incorrectly for systems with greater
than 512GB of memory.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
arch/x86/mm/init_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -427,7 +427,7 @@ void __init_refok init_memory_mapping(un
else
pud = alloc_low_page(&pud_phys);
- next = start + PGDIR_SIZE;
+ next = (start + PGDIR_SIZE) & PGDIR_MASK;
if (next > end)
next = end;
phys_pud_init(pud, __pa(start), __pa(next));
--
--
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parent reply other threads:[~2008-07-30 23:27 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20080730232451.GA30670@suse.de>]
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