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| author | Yinghai Lu <yinghai@kernel.org> | 2008-10-02 22:46:20 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-03 07:41:55 (GMT) |
| commit | 834836ee6a3a9deadff9394b23db965a08bcde35 (patch) | |
| tree | ce2608783ae4d1e50c72fcaf7bb004f4fc1a5f55 /arch | |
| parent | 136c82c6f7f12c9bed8bf709f92123077966512c (diff) | |
| download | linux-834836ee6a3a9deadff9394b23db965a08bcde35.tar.xz | |
x86: mtrr_cleanup try gran_size to less than 1M, v3
J.A. Magallón reported:
>> Also, on a 64 bit box with 4Gb, it gives this:
>>
>> cicely:~# cat /proc/mtrr
>> reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1
>> reg01: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
>> reg02: base=0x140000000 (5120MB), size= 512MB: write-back, count=1
>> reg03: base=0x160000000 (5632MB), size= 256MB: write-back, count=1
>> reg04: base=0x80000000 (2048MB), size=2048MB: uncachable, count=1
boundary handling has a problem ... fix it.
Reported-by: J.A. Magallón <jamagallon@ono.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/mtrr/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index 8f1a342..b4a3f0c 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -1044,7 +1044,7 @@ second_try: hole_sizek = range0_sizek - state->range_sizek - second_sizek; /* hole size should be less than half of range0 size */ - if (hole_sizek > (range0_sizek >> 1) && + if (hole_sizek >= (range0_sizek >> 1) && range0_sizek >= chunk_sizek) { range0_sizek -= chunk_sizek; second_sizek = 0; |