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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-22 08:22:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-22 14:12:31 +0200 |
| commit | 9754a5b840a209bc1f192d59f63e81b698a55ac8 (patch) | |
| tree | cac68f94cbd80b5b4e06aac3d1f6cdec3452c452 /arch | |
| parent | c4bd1fdab0deec0f69aeabab22075cb22ac8ad44 (diff) | |
| download | linux-9754a5b840a209bc1f192d59f63e81b698a55ac8.tar.gz linux-9754a5b840a209bc1f192d59f63e81b698a55ac8.tar.bz2 linux-9754a5b840a209bc1f192d59f63e81b698a55ac8.zip | |
x86: work around MTRR mask setting, v2
improve the debug printout:
- make it actually display something
- print it only once
would be nice to have a WARN_ONCE() facility, to feed such things to
kerneloops.org.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/mtrr/generic.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 43102e03e2d1..cb7d3b6a80eb 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -401,7 +401,12 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, tmp |= ~((1<<(hi - 1)) - 1); if (tmp != mask_lo) { - WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + static int once = 1; + + if (once) { + printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + once = 0; + } mask_lo = tmp; } } |