Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=84288ad89e9736c7478e138f247397b9ab7a9d28
Commit: 84288ad89e9736c7478e138f247397b9ab7a9d28
Parent: 5ebffd7c05391693b71d3326c8c78ff82f728ed0
Author: Andrew Morton <[EMAIL PROTECTED]>
AuthorDate: Sun Jul 1 12:06:48 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Sun Jul 1 12:29:44 2007 -0700
i386: mtrr crash fix
Commit 3ebad5905609476a4ff1151a66b21d9794009961 ("[PATCH] x86: Save and
restore the fixed-range MTRRs of the BSP when suspending") added mtrr
operations without verifying that the CPU has MTRRs. Crashes transmeta
CPUs.
Cc: "H. Peter Anvin" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/i386/kernel/cpu/mtrr/generic.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c
b/arch/i386/kernel/cpu/mtrr/generic.c
index 5a551fb..f6e4694 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -65,7 +65,8 @@ get_fixed_ranges(mtrr_type * frs)
void mtrr_save_fixed_ranges(void *info)
{
- get_fixed_ranges(mtrr_state.fixed_ranges);
+ if (cpu_has_mtrr)
+ get_fixed_ranges(mtrr_state.fixed_ranges);
}
static void print_fixed(unsigned base, unsigned step, const mtrr_type*types)
-
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