For more details, see Documentation/locking/lockdep-design.rst.
config PROVE_RAW_LOCK_NESTING
- bool "Enable raw_spinlock - spinlock nesting checks"
+ bool
depends on PROVE_LOCKING
- default n
+ default y
help
Enable the raw_spinlock vs. spinlock nesting checks which ensure
that the lock nesting rules for PREEMPT_RT enabled kernels are
not violated.
- NOTE: There are known nesting problems. So if you enable this
- option expect lockdep splats until these problems have been fully
- addressed which is work in progress. This config switch allows to
- identify and analyze these problems. It will be removed and the
- check permanently enabled once the main issues have been fixed.
-
- If unsure, select N.
-
config LOCK_STAT
bool "Lock usage statistics"
depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT