This is a note to let you know that I've just added the patch titled
x86, mm: Fix CONFIG_VMSPLIT_1G and 2G_OPT trampoline
to the 2.6.32-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-mm-fix-config_vmsplit_1g-and-2g_opt-trampoline.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From b7d460897739e02f186425b7276e3fdb1595cea7 Mon Sep 17 00:00:00 2001
From: Hugh Dickins <[email protected]>
Date: Tue, 24 Aug 2010 22:44:12 -0700
Subject: x86, mm: Fix CONFIG_VMSPLIT_1G and 2G_OPT trampoline
From: Hugh Dickins <[email protected]>
commit b7d460897739e02f186425b7276e3fdb1595cea7 upstream.
rc2 kernel crashes when booting second cpu on this CONFIG_VMSPLIT_2G_OPT
laptop: whereas cloning from kernel to low mappings pgd range does need
to limit by both KERNEL_PGD_PTRS and KERNEL_PGD_BOUNDARY, cloning kernel
pgd range itself must not be limited by the smaller KERNEL_PGD_BOUNDARY.
Signed-off-by: Hugh Dickins <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Cc: Joerg Roedel <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kernel/trampoline.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -47,8 +47,7 @@ void __init setup_trampoline_page_table(
/* Copy kernel address range */
clone_pgd_range(trampoline_pg_dir + KERNEL_PGD_BOUNDARY,
swapper_pg_dir + KERNEL_PGD_BOUNDARY,
- min_t(unsigned long, KERNEL_PGD_PTRS,
- KERNEL_PGD_BOUNDARY));
+ KERNEL_PGD_PTRS);
/* Initialize low mappings */
clone_pgd_range(trampoline_pg_dir,
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.32/x86-mm-fix-config_vmsplit_1g-and-2g_opt-trampoline.patch
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