diff --git a/libc/thread/sem_getvalue.c b/libc/thread/sem_getvalue.c
index db638f248..f1ac20b40 100644
--- a/libc/thread/sem_getvalue.c
+++ b/libc/thread/sem_getvalue.c
@@ -29,7 +29,6 @@
  * @return 0 on success, or -1 w/ errno
  */
 int sem_getvalue(sem_t *sem, int *sval) {
-  _unassert(sem->sem_pshared || sem->sem_pid == getpid());
   *sval = atomic_load_explicit(&sem->sem_value, memory_order_relaxed);
   return 0;
 }
diff --git a/libc/thread/sem_post.c b/libc/thread/sem_post.c
index 4587c9938..37c5f3f43 100644
--- a/libc/thread/sem_post.c
+++ b/libc/thread/sem_post.c
@@ -33,11 +33,10 @@
  */
 int sem_post(sem_t *sem) {
   int rc, old, wakeups;
-  _unassert(sem->sem_pshared || sem->sem_pid == getpid());
   old = atomic_fetch_add_explicit(&sem->sem_value, 1, memory_order_acq_rel);
   _unassert(old > INT_MIN);
   if (old >= 0) {
-    wakeups = nsync_futex_wake_(&sem->sem_value, 1, sem->sem_pshared);
+    wakeups = nsync_futex_wake_(&sem->sem_value, 1, true);
     _npassert(wakeups >= 0);
     rc = 0;
   } else {
diff --git a/libc/thread/sem_timedwait.c b/libc/thread/sem_timedwait.c
index bc3fa15c2..9419fab74 100644
--- a/libc/thread/sem_timedwait.c
+++ b/libc/thread/sem_timedwait.c
@@ -75,7 +75,7 @@ int sem_timedwait(sem_t *sem, const struct timespec *abstime) {
 
   do {
     if (!(v = atomic_load_explicit(&sem->sem_value, memory_order_relaxed))) {
-      rc = nsync_futex_wait_(&sem->sem_value, v, sem->sem_pshared, abstime);
+      rc = nsync_futex_wait_(&sem->sem_value, v, true, abstime);
       if (rc == -EINTR || rc == -ECANCELED) {
         errno = -rc;
         rc = -1;
diff --git a/libc/thread/sem_trywait.c b/libc/thread/sem_trywait.c
index 765a4187a..0fa730554 100644
--- a/libc/thread/sem_trywait.c
+++ b/libc/thread/sem_trywait.c
@@ -34,7 +34,6 @@
  */
 int sem_trywait(sem_t *sem) {
   int v;
-  _unassert(sem->sem_pshared || sem->sem_pid == getpid());
   v = atomic_load_explicit(&sem->sem_value, memory_order_relaxed);
   do {
     _unassert(v > INT_MIN);
diff --git a/test/libc/thread/sem_timedwait_test.c b/test/libc/thread/sem_timedwait_test.c
index 7fa087d2d..bb8beb2a7 100644
--- a/test/libc/thread/sem_timedwait_test.c
+++ b/test/libc/thread/sem_timedwait_test.c
@@ -42,54 +42,6 @@ TEST(sem_init, einval) {
   ASSERT_SYS(EINVAL, -1, sem_init(&sem, 0, -1));
 }
 
-TEST(sem_post, accessInChildProcessWhenNotPshared_isUndefinedBehavior) {
-  if (!IsModeDbg()) return;
-  int val;
-  sem_t sem;
-  ASSERT_SYS(0, 0, sem_init(&sem, 0, 0));
-  SPAWN(fork);
-  IgnoreStderr();
-  sem_post(&sem);
-  EXITS(77);
-}
-
-TEST(sem_getvalue, accessInChildProcessWhenNotPshared_isUndefinedBehavior) {
-  if (!IsModeDbg()) return;
-  int val;
-  sem_t sem;
-  ASSERT_SYS(0, 0, sem_init(&sem, 0, 0));
-  ASSERT_SYS(0, 0, sem_getvalue(&sem, &val));
-  SPAWN(fork);
-  IgnoreStderr();
-  sem_getvalue(&sem, &val);
-  EXITS(77);
-  ASSERT_SYS(0, 0, sem_destroy(&sem));
-}
-
-TEST(sem_timedwait, accessInChildProcessWhenNotPshared_isUndefinedBehavior) {
-  if (!IsModeDbg()) return;
-  int val;
-  sem_t sem;
-  ASSERT_SYS(0, 0, sem_init(&sem, 0, 0));
-  SPAWN(fork);
-  IgnoreStderr();
-  sem_timedwait(&sem, 0);
-  EXITS(77);
-  ASSERT_SYS(0, 0, sem_destroy(&sem));
-}
-
-TEST(sem_trywait, accessInChildProcessWhenNotPshared_isUndefinedBehavior) {
-  if (!IsModeDbg()) return;
-  int val;
-  sem_t sem;
-  ASSERT_SYS(0, 0, sem_init(&sem, 0, 0));
-  SPAWN(fork);
-  IgnoreStderr();
-  sem_trywait(&sem);
-  EXITS(77);
-  ASSERT_SYS(0, 0, sem_destroy(&sem));
-}
-
 TEST(sem_post, afterDestroyed_isUndefinedBehavior) {
   if (!IsModeDbg()) return;
   int val;