Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b9d19f...
Commit: b9d19f4a51447930db002409945ad40a7a373cb0
Parent: 383bc5cecc2ed0b8f44a25488660b03030425ef7
Author: Yinghai Lu <yhlu.kernel@gmail.com>
AuthorDate: Thu Jun 26 00:44:56 2008 -0700
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue Jul 8 13:10:42 2008 +0200
x86: fix memory setup bug
interesting...
[ 0.000000] mapped low ram: 0 - 20000000
[ 0.000000] low ram: 00000000 - 1fff0000
[ 0.000000] bootmap 00002000 - 00006000
max_pfn_mapped > max_low_pfn?
it seems init_memory_mapping reveals an old bug.
please check attached test patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/kernel/setup_32.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 4b953dc..392812d 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -427,7 +427,7 @@ void __init setup_arch(char **cmdline_p)
find_low_pfn_range();
/* max_pfn_mapped is updated here */
- init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT));
+ max_pfn_mapped = init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT));
reserve_initrd();
--
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