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| author | Takashi Iwai <tiwai@suse.de> | 2011-10-23 23:19:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-25 07:10:16 +0200 |
| commit | 83643e5d134408e61504caa4e3e9dd776ddd4207 (patch) | |
| tree | 50e31a4b43609ec480915363b5fad876b5da75ca | |
| parent | f92a292abeee48559493433e4e947d0f49fcdd8d (diff) | |
| download | kernel_samsung_smdk4412-83643e5d134408e61504caa4e3e9dd776ddd4207.zip kernel_samsung_smdk4412-83643e5d134408e61504caa4e3e9dd776ddd4207.tar.gz kernel_samsung_smdk4412-83643e5d134408e61504caa4e3e9dd776ddd4207.tar.bz2 | |
x86: Fix S4 regression
commit 8548c84da2f47e71bbbe300f55edb768492575f7 upstream.
Commit 4b239f458 ("x86-64, mm: Put early page table high") causes a S4
regression since 2.6.39, namely the machine reboots occasionally at S4
resume. It doesn't happen always, overall rate is about 1/20. But,
like other bugs, once when this happens, it continues to happen.
This patch fixes the problem by essentially reverting the memory
assignment in the older way.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Yinghai Lu <yinghai.lu@oracle.com>
[ We'll hopefully find the real fix, but that's too late for 3.1 now ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/x86/mm/init.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 3032644..87488b9 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -63,9 +63,8 @@ static void __init find_early_table_space(unsigned long end, int use_pse, #ifdef CONFIG_X86_32 /* for fixmap */ tables += roundup(__end_of_fixed_addresses * sizeof(pte_t), PAGE_SIZE); - - good_end = max_pfn_mapped << PAGE_SHIFT; #endif + good_end = max_pfn_mapped << PAGE_SHIFT; base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE); if (base == MEMBLOCK_ERROR) |