menu "Kernel hacking" source "lib/Kconfig.debug" config DEBUG_RWLOCK bool "Read-write spinlock debugging" depends on DEBUG_KERNEL && SMP help If you say Y here then read-write lock processing will count how many times it has tried to get the lock and issue an error message after too many attempts. If you suspect a rwlock problem or a kernel hacker asks for this option then say Y. Otherwise say N. endmenu