diff --git a/sys/compat/linux/linux_futex.c b/sys/compat/linux/linux_futex.c
--- a/sys/compat/linux/linux_futex.c
+++ b/sys/compat/linux/linux_futex.c
@@ -664,6 +664,7 @@
 	struct timespec uts, *ts;
 	int error, save;
 	uint32_t flags, val;
+	int no_compare;
 
 	if (args->op & LINUX_FUTEX_PRIVATE_FLAG) {
 		flags = 0;
@@ -688,6 +689,7 @@
 
 	error = 0;
 	f = f2 = NULL;
+	no_compare = 0;		// for FUTEX_REQUEUE
 
 	switch (args->op) {
 	case LINUX_FUTEX_WAIT:
@@ -767,6 +769,27 @@
 		futex_put(f, NULL);
 		break;
 
+	case LINUX_FUTEX_REQUEUE:
+		/*
+		 * Glibc does not use this operation since version 2.3.3,
+		 * as it is racy and replaced by FUTEX_CMP_REQUEUE operation.
+		 * Glibc versions prior to 2.3.3 fall back to FUTEX_WAKE when
+		 * FUTEX_REQUEUE returned EINVAL.
+		 */
+		pem = pem_find(td->td_proc);
+		if ((pem->flags & LINUX_XDEPR_REQUEUEOP) == 0) {
+			linux_msg(td, "warn: deprecated FUTEX_REQUEUE");
+			pem->flags |= LINUX_XDEPR_REQUEUEOP;
+			LIN_SDT_PROBE0(futex, linux_sys_futex,
+					deprecated_requeue);
+		}
+		/*
+		 * The above is true, however musl libc does make use of the
+		 * futex requeue operation, so we add support for it.
+		 */
+		no_compare = 1;
+		/* FALLTHROUGH */
+
 	case LINUX_FUTEX_CMP_REQUEUE:
 		LIN_SDT_PROBE5(futex, linux_sys_futex, debug_cmp_requeue,
 		    args->uaddr, args->val, args->val3, args->uaddr2,
@@ -819,7 +842,7 @@
 			    error);
 			return (error);
 		}
-		if (val != args->val3) {
+		if ((no_compare == 0) && val != args->val3) {
 			LIN_SDT_PROBE2(futex, linux_sys_futex,
 			    debug_cmp_requeue_value_neq, args->val, val);
 			LINUX_CTR2(sys_futex, "CMP_REQUEUE val 0x%x != uval 0x%x",
@@ -931,22 +954,6 @@
 		}
 		return (ENOSYS);
 
-	case LINUX_FUTEX_REQUEUE:
-		/*
-		 * Glibc does not use this operation since version 2.3.3,
-		 * as it is racy and replaced by FUTEX_CMP_REQUEUE operation.
-		 * Glibc versions prior to 2.3.3 fall back to FUTEX_WAKE when
-		 * FUTEX_REQUEUE returned EINVAL.
-		 */
-		pem = pem_find(td->td_proc);
-		if ((pem->flags & LINUX_XDEPR_REQUEUEOP) == 0) {
-			linux_msg(td, "unsupported FUTEX_REQUEUE");
-			pem->flags |= LINUX_XDEPR_REQUEUEOP;
-			LIN_SDT_PROBE0(futex, linux_sys_futex,
-			    deprecated_requeue);
-		}
-		return (EINVAL);
-
 	case LINUX_FUTEX_WAIT_REQUEUE_PI:
 		/* not yet implemented */
 		pem = pem_find(td->td_proc);