Commit 9d839c28 authored Apr 19, 2021 by Fenghua Yu Committed by Thomas Gleixner May 18, 2021

Documentation/admin-guide: Add bus lock ratelimit



Since bus lock rate limit changes the split_lock_detect parameter,
update the documentation for the change.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20210419214958.4035512-4-fenghua.yu@intel.com

parent ef4ae6e4

Documentation/admin-guide/kernel-parameters.txt

+8 −0

Original line number	Diff line number	Diff line
		@@ -5283,6 +5283,14 @@
		exception. Default behavior is by #AC if
		both features are enabled in hardware.

		ratelimit:N -
		Set system wide rate limit to N bus locks
		per second for bus lock detection.
		0 < N <= 1000.

		N/A for split lock detection.


		If an #AC exception is hit in the kernel or in
		firmware (i.e. not while executing in user mode)
		the kernel will oops in either "warn" or "fatal"