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authorAndi Kleen <andi@firstfloor.org>2009-02-12 13:39:26 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2009-02-17 15:24:28 -0800
commit6ec68bff3c81e776a455f6aca95c8c5f1d630198 (patch)
tree248b9c4dbb9271f7a8ad15b7103febefe877a79f
parentbf51935f3e988e0ed6f34b55593e5912f990750a (diff)
x86, mce: reinitialize per cpu features on resume
Impact: Bug fix This fixes a long standing bug in the machine check code. On resume the boot CPU wouldn't get its vendor specific state like thermal handling reinitialized. This means the boot cpu wouldn't ever get any thermal events reported again. Call the respective initialization functions on resume v2: Remove ancient init because they don't have a resume device anyways. Pointed out by Thomas Gleixner. v3: Now fix the Subject too to reflect v2 change Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_64.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 1c838032fd3..1f184efb6bc 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -734,6 +734,7 @@ __setup("mce=", mcheck_enable);
static int mce_resume(struct sys_device *dev)
{
mce_init(NULL);
+ mce_cpu_features(&current_cpu_data);
return 0;
}