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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 11:12:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 11:12:13 -0700 |
| commit | 7687b80a4f5a178fe292d071c91ebf273ebe12db (patch) | |
| tree | cc5091575aed17806f7cb1efb1ceec86c39ff8b9 /arch/x86/Kconfig | |
| parent | Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| parent | Merge tag 'please-pull-naveen' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/mce (diff) | |
| download | linux-dev-7687b80a4f5a178fe292d071c91ebf273ebe12db.tar.xz linux-dev-7687b80a4f5a178fe292d071c91ebf273ebe12db.zip | |
Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/MCE update from Ingo Molnar:
"Various MCE robustness enhancements.
One of the changes adds CMCI (Corrected Machine Check Interrupt) poll
mode on Intel Nehalem+ CPUs, which mode is automatically entered when
the rate of messages is too high - and exited once the storm is over.
An MCE events storm will roughly look like this:
[ 5342.740616] mce: [Hardware Error]: Machine check events logged
[ 5342.746501] mce: [Hardware Error]: Machine check events logged
[ 5342.757971] CMCI storm detected: switching to poll mode
[ 5372.674957] CMCI storm subsided: switching to interrupt mode
This should make such events more survivable"
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Provide boot argument to honour bios-set CMCI threshold
x86, MCE: Remove unused defines
x86, mce: Enable MCA support by default
x86/mce: Add CMCI poll mode
x86/mce: Make cmci_discover() quiet
x86: mce: Remove the frozen cases in the hotplug code
x86: mce: Split timer init
x86: mce: Serialize mce injection
x86: mce: Disable preemption when calling raise_local()
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 57fecc1db94d..6cd6f24e1223 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -874,6 +874,7 @@ config X86_REROUTE_FOR_BROKEN_BOOT_IRQS config X86_MCE bool "Machine Check / overheating reporting" + default y ---help--- Machine Check support allows the processor to notify the kernel if it detects a problem (e.g. overheating, data corruption). |