Index: head/sys/riscv/conf/GENERIC
===================================================================
--- head/sys/riscv/conf/GENERIC
+++ head/sys/riscv/conf/GENERIC
@@ -140,7 +140,7 @@
 options 	INVARIANTS		# Enable calls of extra sanity checking
 options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
 options 	WITNESS			# Enable checks to detect deadlocks and cycles
-# options 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
+options 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
 options 	MALLOC_DEBUG_MAXZONES=8	# Separate malloc(9) zones
 # options 	EARLY_PRINTF
 options 	VERBOSE_SYSINIT=0	# Support debug.verbose_sysinit, off by default