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authorAndi Kleen <andi@firstfloor.org>2009-07-09 00:31:38 +0200
committerH. Peter Anvin <hpa@zytor.com>2009-07-09 18:39:46 -0700
commitbab9bc6583fe6c1660d6ed36dd14bbb4edfaf393 (patch)
tree6b2125ecc71e3d4d24265c20100b404349b9403e /arch/x86/Kconfig
parentc31d96338a6041520ba5f1b6a4a5012ef00686b3 (diff)
x86: mce: Update X86_MCE description in x86/Kconfig
- Clarify that this config controls thermal throttling reporting too - Clarify the types of errors reported by machine checks - Drop references to ancient CPUs. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig16
1 files changed, 4 insertions, 12 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5962b872a7a..134a8c0d80d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -774,20 +774,12 @@ config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
increased on these systems.
config X86_MCE
- bool "Machine Check Exception"
+ bool "Machine Check / overheating reporting"
---help---
- Machine Check Exception support allows the processor to notify the
- kernel if it detects a problem (e.g. overheating, component failure).
+ Machine Check support allows the processor to notify the
+ kernel if it detects a problem (e.g. overheating, data corruption).
The action the kernel takes depends on the severity of the problem,
- ranging from a warning message on the console, to halting the machine.
- Your processor must be a Pentium or newer to support this - check the
- flags in /proc/cpuinfo for mce. Note that some older Pentium systems
- have a design flaw which leads to false MCE events - hence MCE is
- disabled on all P5 processors, unless explicitly enabled with "mce"
- as a boot argument. Similarly, if MCE is built in and creates a
- problem on some new non-standard machine, you can boot with "nomce"
- to disable it. MCE support simply ignores non-MCE processors like
- the 386 and 486, so nearly everyone can say Y here.
+ ranging from warning messages to halting the machine.
config X86_OLD_MCE
depends on X86_32 && X86_MCE