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lockdep: Enable PROVE_RAW_LOCK_NESTING with PROVE_LOCKING.

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With the printk issues solved, the last known splat created by
PROVE_RAW_LOCK_NESTING is gone.

Enable PROVE_RAW_LOCK_NESTING by default as part of PROVE_LOCKING. Keep
the defines around in case something serious pops up and it needs to be
disabled.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20241009161041.1018375-2-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2024-10-09 17:45:03 +02:00 committed by Boqun Feng
parent e48bf7ca60
commit 560af5dc83
1 changed files with 2 additions and 10 deletions
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12
lib/Kconfig.debug
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@ -1409,22 +1409,14 @@ config PROVE_LOCKING
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