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| -rw-r--r-- | Documentation/x86/buslock.rst | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Documentation/x86/buslock.rst b/Documentation/x86/buslock.rst index 7c051e714943..31ec0ef78086 100644 --- a/Documentation/x86/buslock.rst +++ b/Documentation/x86/buslock.rst @@ -53,8 +53,14 @@ parameter "split_lock_detect". Here is a summary of different options: |off |Do nothing |Do nothing | +------------------+----------------------------+-----------------------+ |warn |Kernel OOPs |Warn once per task and | -|(default) |Warn once per task and |and continues to run. | -| |disable future checking | | +|(default) |Warn once per task, add a |and continues to run. | +| |delay, add synchronization | | +| |to prevent more than one | | +| |core from executing a | | +| |split lock in parallel. | | +| |sysctl split_lock_mitigate | | +| |can be used to avoid the | | +| |delay and synchronization | | | |When both features are | | | |supported, warn in #AC | | +------------------+----------------------------+-----------------------+ |