--- xnu/xnu-12377.101.15/tests/kqueue_close.c
+++ /dev/null
@@ -1,156 +0,0 @@
-#include <unistd.h>
-#include <pthread.h>
-#include <errno.h>
-
-#include <sys/event.h>
-#include <mach/mach.h>
-#include <mach/mach_port.h>
-
-#include <Block.h>
-#include <darwintest.h>
-
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
-
-/*
- * <rdar://problem/30231213> close() of kqueue FD races with kqueue_scan park
- *
- * When close concurrent with poll goes wrong, the close hangs
- * and the kevent never gets any more events.
- */
-
-/* Both events should fire at about the same time */
-static uint32_t timeout_ms = 10;
-
-static void *
-poll_kqueue(void *arg)
-{
-	int fd = (int)arg;
-
-	struct kevent kev = {
-		.filter = EVFILT_TIMER,
-		.flags  = EV_ADD,
-		.data   = timeout_ms,
-	};
-
-	int rv = kevent(fd, &kev, 1, NULL, 0, NULL);
-
-	if (rv == -1 && errno == EBADF) {
-		/* The close may race with this thread spawning */
-		T_LOG("kqueue already closed?");
-		return NULL;
-	} else {
-		T_QUIET; T_ASSERT_POSIX_SUCCESS(rv, "kevent");
-	}
-
-	while ((rv = kevent(fd, NULL, 0, &kev, 1, NULL)) == 1) {
-		T_LOG("poll\n");
-	}
-
-	if (rv != -1 || errno != EBADF) {
-		T_ASSERT_POSIX_SUCCESS(rv, "fd should be closed");
-	}
-
-	return NULL;
-}
-
-static void
-run_test(void)
-{
-	int fd = kqueue();
-	T_QUIET; T_ASSERT_POSIX_SUCCESS(fd, "kqueue");
-
-	pthread_t thread;
-	int rv = pthread_create(&thread, NULL, poll_kqueue,
-	    (void *)(uintptr_t)fd);
-	T_QUIET; T_ASSERT_POSIX_SUCCESS(rv, "pthread_create");
-
-	usleep(timeout_ms * 1000);
-
-	rv = close(fd);
-	T_ASSERT_POSIX_SUCCESS(rv, "close");
-
-	rv = pthread_join(thread, NULL);
-	T_QUIET; T_ASSERT_POSIX_SUCCESS(rv, "pthread_join");
-}
-
-T_DECL(kqueue_close_race, "Races kqueue close with kqueue process",
-    T_META_LTEPHASE(LTE_POSTINIT), T_META_TIMEOUT(5), T_META_TAG_VM_PREFERRED)
-{
-	for (uint32_t i = 1; i < 100; i++) {
-		run_test();
-	}
-}
-
-static void *
-pthread_async_do(void *arg)
-{
-	void (^block)(void) = arg;
-	block();
-	Block_release(block);
-	pthread_detach(pthread_self());
-	return NULL;
-}
-
-static void
-pthread_async(void (^block)(void))
-{
-	pthread_t th;
-	int rc;
-
-	rc = pthread_create(&th, NULL, pthread_async_do, Block_copy(block));
-	T_QUIET; T_ASSERT_POSIX_SUCCESS(rc, "pthread_create");
-}
-
-T_DECL(kqueue_filter_close,
-    "Check closing a kqfile with various filters works, rdar://72542450", T_META_TAG_VM_PREFERRED)
-{
-	mach_port_t mp, pset;
-	kern_return_t kr;
-	struct kevent ke;
-	int kq, rc;
-	int pfd[2];
-
-	kq = kqueue();
-	T_ASSERT_POSIX_SUCCESS(kq, "kqueue()");
-
-	kr = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &mp);
-	T_QUIET; T_EXPECT_MACH_SUCCESS(kr, "mach_port_allocate(RECEIVE)");
-
-	ke = (struct kevent){
-		.filter = EVFILT_MACHPORT,
-		.flags  = EV_ADD,
-		.ident  = mp,
-	};
-	rc = kevent(kq, &ke, 1, NULL, 0, NULL);
-	T_EXPECT_POSIX_SUCCESS(rc, "kevent(mp)");
-
-	kr = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_PORT_SET, &pset);
-	T_QUIET; T_EXPECT_MACH_SUCCESS(kr, "mach_port_allocate(PSET)");
-
-	ke = (struct kevent){
-		.filter = EVFILT_MACHPORT,
-		.flags  = EV_ADD,
-		.ident  = pset,
-	};
-	rc = kevent(kq, &ke, 1, NULL, 0, NULL);
-	T_EXPECT_POSIX_SUCCESS(rc, "kevent(pset)");
-
-	rc = pipe(pfd);
-	T_EXPECT_POSIX_SUCCESS(rc, "pipe");
-
-	ke = (struct kevent){
-		.filter = EVFILT_READ,
-		.flags  = EV_ADD,
-		.ident  = (unsigned long)pfd[0],
-	};
-	rc = kevent(kq, &ke, 1, NULL, 0, NULL);
-	T_EXPECT_POSIX_SUCCESS(rc, "kevent(fd)");
-
-	pthread_async(^{
-		sleep(1);
-		T_EXPECT_POSIX_SUCCESS(close(kq), "close");
-	});
-
-	rc = kevent(kq, NULL, 0, &ke, 1, NULL);
-	T_EXPECT_POSIX_FAILURE(rc, EBADF, "kevent(closed fd) returns EBADF");
-}