PWN-Hunter/android_kernel_xiaomi_sdm845
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x86: fix memory setup bug

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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>
This commit is contained in:
Yinghai Lu 2008-06-26 00:44:56 -07:00 committed by Ingo Molnar
parent 383bc5cecc
commit b9d19f4a51
1 changed files with 1 additions and 1 deletions
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arch/x86/kernel/setup_32.c
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@ -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();