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-rw-r--r--Documentation/x86_64/machinecheck7
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/x86_64/machinecheck b/Documentation/x86_64/machinecheck
index 068a6d9904b..feaeaf6f6e4 100644
--- a/Documentation/x86_64/machinecheck
+++ b/Documentation/x86_64/machinecheck
@@ -36,7 +36,12 @@ between all CPUs.
check_interval
How often to poll for corrected machine check errors, in seconds
- (Note output is hexademical). Default 5 minutes.
+ (Note output is hexademical). Default 5 minutes. When the poller
+ finds MCEs it triggers an exponential speedup (poll more often) on
+ the polling interval. When the poller stops finding MCEs, it
+ triggers an exponential backoff (poll less often) on the polling
+ interval. The check_interval variable is both the initial and
+ maximum polling interval.
tolerant
Tolerance level. When a machine check exception occurs for a non