diff --git a/lib/libzpool/kernel.c b/lib/libzpool/kernel.c
index ba232425d3..a1bb973b1f 100644
--- a/lib/libzpool/kernel.c
+++ b/lib/libzpool/kernel.c
@@ -168,12 +168,6 @@ zk_thread_create(caddr_t stk, size_t stksize, thread_func_t func, void *arg,
 	 * PTHREAD_STACK_MIN is the minimum stack required for a NULL
 	 * procedure in user space and is added in to the stack
 	 * requirements.
-	 *
-	 * Some buggy NPTL threading implementations include the
-	 * guard area within the stack size allocations.  In
-	 * this case we allocate an extra page to account for the
-	 * guard area since we only have two pages of usable stack
-	 * on Linux.
 	 */
 
 	stack = PTHREAD_STACK_MIN + MAX(stksize, STACK_SIZE) * 4;