--- xnu/xnu-12377.101.15/tests/stackshot_spawn_exit_stress.c
+++ /dev/null
@@ -1,136 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <darwintest.h>
-#include <darwintest_utils.h>
-
-#include <dispatch/dispatch.h>
-#include <kern/debug.h>
-#include <libproc.h>
-#include <mach-o/dyld.h>
-#include <sys/syscall.h>
-#include <sys/stackshot.h>
-#include <spawn.h>
-
-T_GLOBAL_META(
-	T_META_NAMESPACE("xnu.stackshot"),
-	T_META_RADAR_COMPONENT_NAME("xnu"),
-	T_META_RADAR_COMPONENT_VERSION("stackshot"),
-	T_META_OWNER("jonathan_w_adams"),
-	T_META_CHECK_LEAKS(false),
-	T_META_ASROOT(true)
-	);
-
-#define TEST_DURATION_NS (60 * NSEC_PER_SEC)
-
-#define REAP_INTERVAL 10
-
-static void*
-loop(__attribute__ ((unused)) void *arg)
-{
-	exit(0);
-}
-
-T_HELPER_DECL(spawn_children_helper, "spawn_children helper")
-{
-	pthread_t pthread;
-
-	T_QUIET; T_ASSERT_POSIX_ZERO(pthread_create(&pthread, NULL, loop, NULL), "pthread_create");
-
-	while (1) {
-		;
-	}
-}
-
-static void
-take_stackshot(void)
-{
-	uint64_t stackshot_flags = (STACKSHOT_SAVE_LOADINFO | STACKSHOT_GET_GLOBAL_MEM_STATS |
-	    STACKSHOT_SAVE_IMP_DONATION_PIDS | STACKSHOT_KCDATA_FORMAT);
-
-	void *config = stackshot_config_create();
-	T_QUIET; T_ASSERT_NOTNULL(config, "created stackshot config");
-
-	int ret = stackshot_config_set_flags(config, stackshot_flags);
-	T_QUIET; T_ASSERT_POSIX_ZERO(ret, "set flags on stackshot config");
-
-	int retries_remaining = 5;
-
-retry:
-	ret = stackshot_capture_with_config(config);
-
-	if (ret == EBUSY || ret == ETIMEDOUT) {
-		if (retries_remaining > 0) {
-			retries_remaining--;
-			goto retry;
-		} else {
-			T_QUIET; T_ASSERT_POSIX_ZERO(ret,
-			    "called stackshot_capture_with_config (no retries remaining)");
-		}
-	} else {
-		T_QUIET; T_ASSERT_POSIX_ZERO(ret, "called stackshot_capture_with_config");
-	}
-
-	ret = stackshot_config_dealloc(config);
-	T_QUIET; T_EXPECT_POSIX_ZERO(ret, "deallocated stackshot config");
-}
-
-T_DECL(stackshot_spawn_exit, "tests taking many stackshots while children processes are spawning+exiting", T_META_TIMEOUT(120), T_META_TAG_VM_PREFERRED)
-{
-	char path[PATH_MAX];
-	uint32_t path_size = sizeof(path);
-	T_ASSERT_POSIX_ZERO(_NSGetExecutablePath(path, &path_size), "_NSGetExecutablePath");
-	char *args[] = { path, "-n", "spawn_children_helper", NULL };
-
-	uint64_t stop_time = clock_gettime_nsec_np(CLOCK_UPTIME_RAW) + TEST_DURATION_NS;
-
-	dispatch_queue_t stackshot_queue = dispatch_queue_create("stackshot_queue", NULL);
-	dispatch_async(stackshot_queue, ^(void) {
-		int num_stackshots = 0;
-
-		while (1) {
-		        take_stackshot();
-		        num_stackshots++;
-		        if ((num_stackshots % 100) == 0) {
-		                T_LOG("completed %d stackshots", num_stackshots);
-			}
-
-		        // Sleep between each stackshot
-		        usleep(100);
-		}
-	});
-
-	// <rdar://problem/39739547> META option for T_HELPER_DECL to not output test begin on start
-	posix_spawn_file_actions_t actions;
-	T_QUIET; T_ASSERT_POSIX_SUCCESS(posix_spawn_file_actions_init(&actions), "create spawn actions");
-	T_QUIET; T_ASSERT_POSIX_SUCCESS(posix_spawn_file_actions_addopen(&actions, STDOUT_FILENO, "/dev/null", O_WRONLY, 0),
-	    "set stdout of child to NULL");
-
-	int children_unreaped = 0, status;
-	uint64_t iterations_completed = 0;
-	while (clock_gettime_nsec_np(CLOCK_UPTIME_RAW) < stop_time) {
-		pid_t pid;
-
-		int sp_ret = posix_spawn(&pid, args[0], &actions, NULL, args, NULL);
-		T_QUIET; T_ASSERT_POSIX_ZERO(sp_ret, "spawned process '%s' with PID %d", args[0], pid);
-
-		children_unreaped++;
-
-		if (children_unreaped >= REAP_INTERVAL) {
-			while (children_unreaped) {
-				T_QUIET; T_ASSERT_POSIX_SUCCESS(waitpid(-1, &status, 0), "waitpid returned child pid");
-				children_unreaped--;
-			}
-		}
-
-		if ((iterations_completed % 100) == 0) {
-			T_LOG("spawned %llu children thus far", iterations_completed);
-		}
-		iterations_completed++;
-	}
-
-	while (children_unreaped) {
-		T_QUIET; T_ASSERT_POSIX_SUCCESS(waitpid(-1, &status, 0), "waitpid returned child pid");
-		children_unreaped--;
-	}
-}