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-rw-r--r--Documentation/x86/x86_64/boot-options.txt6
-rw-r--r--Documentation/x86/x86_64/machinecheck4
2 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt
index 63fca718256..0ee5e3b212f 100644
--- a/Documentation/x86/x86_64/boot-options.txt
+++ b/Documentation/x86/x86_64/boot-options.txt
@@ -15,13 +15,17 @@ Machine check
in a reboot. On Intel systems it is enabled by default.
mce=nobootlog
Disable boot machine check logging.
- mce=tolerancelevel (number)
+ mce=tolerancelevel[,monarchtimeout] (number,number)
+ tolerance levels:
0: always panic on uncorrected errors, log corrected errors
1: panic or SIGBUS on uncorrected errors, log corrected errors
2: SIGBUS or log uncorrected errors, log corrected errors
3: never panic or SIGBUS, log all errors (for testing only)
Default is 1
Can be also set using sysfs which is preferable.
+ monarchtimeout:
+ Sets the time in us to wait for other CPUs on machine checks. 0
+ to disable.
nomce (for compatibility with i386): same as mce=off
diff --git a/Documentation/x86/x86_64/machinecheck b/Documentation/x86/x86_64/machinecheck
index a4fdb25446e..b1fb3027328 100644
--- a/Documentation/x86/x86_64/machinecheck
+++ b/Documentation/x86/x86_64/machinecheck
@@ -69,6 +69,10 @@ trigger
Program to run when a machine check event is detected.
This is an alternative to running mcelog regularly from cron
and allows to detect events faster.
+monarch_timeout
+ How long to wait for the other CPUs to machine check too on a
+ exception. 0 to disable waiting for other CPUs.
+ Unit: us
TBD document entries for AMD threshold interrupt configuration