projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| f427ee49 A |
1 | #include <sys/sysctl.h> |
| 2 | #include <time.h> | |
| 3 | ||
| 4 | #include <darwintest.h> | |
| 5 | #include <darwintest_utils.h> | |
| 6 | ||
| 7 | ||
| 8 | static void * | |
| 9 | gc_thread_func(__unused void *arg) | |
| 10 | { | |
| 11 | int err; | |
| 12 | unsigned int count = 1; | |
| 13 | size_t s = sizeof(count); | |
| 14 | time_t start = time(NULL); | |
| 15 | time_t end = time(NULL); | |
| 16 | ||
| 17 | /* | |
| 18 | * Keep kicking the test for 15 seconds to see if we can panic() the kernel | |
| 19 | */ | |
| 20 | while (time(&end) < start + 15) { | |
| 21 | err = sysctlbyname("kern.zone_gc_replenish_test", &count, &s, &count, s); | |
| 22 | ||
| 23 | /* If the sysctl isn't supported, test succeeds */ | |
| 24 | if (err != 0) { | |
| 25 | T_SKIP("sysctl kern.zone_gc_replenish_test not found, skipping test"); | |
| 26 | break; | |
| 27 | } | |
| 28 | } | |
| 29 | return NULL; | |
| 30 | } | |
| 31 | ||
| 32 | static void * | |
| 33 | alloc_thread_func(__unused void *arg) | |
| 34 | { | |
| 35 | int err; | |
| 36 | unsigned int count = 1; | |
| 37 | size_t s = sizeof(count); | |
| 38 | time_t start = time(NULL); | |
| 39 | time_t end = time(NULL); | |
| 40 | ||
| 41 | /* | |
| 42 | * Keep kicking the test for 15 seconds to see if we can panic() the kernel | |
| 43 | */ | |
| 44 | while (time(&end) < start + 15) { | |
| 45 | err = sysctlbyname("kern.zone_alloc_replenish_test", &count, &s, &count, s); | |
| 46 | ||
| 47 | /* If the sysctl isn't supported, test succeeds */ | |
| 48 | if (err != 0) { | |
| 49 | T_SKIP("sysctl kern.zone_alloc_replenish_test not found, skipping test"); | |
| 50 | break; | |
| 51 | } | |
| 52 | } | |
| 53 | return NULL; | |
| 54 | } | |
| 55 | ||
| 56 | T_DECL(zone_gc_replenish_test, | |
| 57 | "Test zone garbage collection, exhaustion and replenishment", | |
| 58 | T_META_NAMESPACE("xnu.vm"), | |
| 59 | T_META_CHECK_LEAKS(false)) | |
| 60 | { | |
| 61 | pthread_attr_t attr; | |
| 62 | pthread_t gc_thread; | |
| 63 | pthread_t alloc_thread; | |
| 64 | int ret; | |
| 65 | ||
| 66 | ret = pthread_attr_init(&attr); | |
| 67 | T_QUIET; T_ASSERT_MACH_SUCCESS(ret, "pthread_attr_init"); | |
| 68 | ||
| 69 | ret = pthread_create(&gc_thread, &attr, gc_thread_func, NULL); | |
| 70 | T_QUIET; T_ASSERT_POSIX_ZERO(ret, "gc pthread_create"); | |
| 71 | ||
| 72 | ret = pthread_create(&alloc_thread, &attr, alloc_thread_func, NULL); | |
| 73 | T_QUIET; T_ASSERT_POSIX_ZERO(ret, "alloc pthread_create"); | |
| 74 | ||
| 75 | T_ASSERT_POSIX_ZERO(pthread_join(gc_thread, NULL), NULL); | |
| 76 | T_ASSERT_POSIX_ZERO(pthread_join(alloc_thread, NULL), NULL); | |
| 77 | T_PASS("Ran 15 seconds with no panic"); | |
| 78 | } |