diff --git a/examples/greenbean.c b/examples/greenbean.c
index 9f2aae6c1..8ffc51622 100644
--- a/examples/greenbean.c
+++ b/examples/greenbean.c
@@ -289,10 +289,11 @@ int main(int argc, char *argv[]) {
   // print all the ips that 0.0.0.0 would bind
   // Cosmo's GetHostIps() API is much easier than ioctl(SIOCGIFCONF)
   uint32_t *hostips;
-  for (hostips = gc(GetHostIps()), i = 0; hostips[i]; ++i) {
+  for (hostips = GetHostIps(), i = 0; hostips[i]; ++i) {
     kprintf("listening on http://%hhu.%hhu.%hhu.%hhu:%hu\n", hostips[i] >> 24,
             hostips[i] >> 16, hostips[i] >> 8, hostips[i], PORT);
   }
+  free(hostips);
 
   // secure the server
   //
@@ -342,7 +343,7 @@ int main(int argc, char *argv[]) {
   unassert(!pthread_attr_setguardsize(&attr, getpagesize()));
   unassert(!pthread_attr_setsigmask_np(&attr, &block));
   unassert(!pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, 0));
-  pthread_t *th = gc(calloc(threads, sizeof(pthread_t)));
+  pthread_t *th = calloc(threads, sizeof(pthread_t));
   for (i = 0; i < threads; ++i) {
     int rc;
     ++a_workers;
@@ -399,6 +400,7 @@ int main(int argc, char *argv[]) {
   for (i = 0; i < threads; ++i) {
     unassert(!pthread_join(th[i], 0));
   }
+  free(th);
 
   // close the server socket
   if (!IsWindows())
diff --git a/libc/mem/gc.c b/libc/mem/gc.c
index 1ef55198c..7f34d9db5 100644
--- a/libc/mem/gc.c
+++ b/libc/mem/gc.c
@@ -33,28 +33,6 @@ forceinline bool PointerNotOwnedByParentStackFrame(struct StackFrame *frame,
            ((intptr_t)ptr < (intptr_t)parent));
 }
 
-static void TeardownGc(void) {
-  struct Garbages *g;
-  struct CosmoTib *t;
-  if (__tls_enabled) {
-    t = __get_tls();
-    if ((g = t->tib_garbages)) {
-      // exit() currently doesn't use gclongjmp() like pthread_exit()
-      // so we need to run the deferred functions manually.
-      while (g->i) {
-        --g->i;
-        ((void (*)(intptr_t))g->p[g->i].fn)(g->p[g->i].arg);
-      }
-      free(g->p);
-      free(g);
-    }
-  }
-}
-
-__attribute__((__constructor__(51))) static textstartup void InitGc(void) {
-  atexit(TeardownGc);
-}
-
 // add item to garbage shadow stack.
 // then rewrite caller's return address on stack.
 static void DeferFunction(struct StackFrame *frame, void *fn, void *arg) {
diff --git a/libc/runtime/cxa_thread_atexit.c b/libc/runtime/cxa_thread_atexit.c
index cce24949f..143727024 100644
--- a/libc/runtime/cxa_thread_atexit.c
+++ b/libc/runtime/cxa_thread_atexit.c
@@ -68,8 +68,10 @@ static void _pthread_ungarbage(struct CosmoTib *tib) {
     tib->tib_garbages = 0;
     while (g->i--)
       ((void (*)(intptr_t))g->p[g->i].fn)(g->p[g->i].arg);
-    _weaken(free)(g->p);
-    _weaken(free)(g);
+    if (_weaken(free)) {
+      _weaken(free)(g->p);
+      _weaken(free)(g);
+    }
   }
 }
 
diff --git a/libc/thread/pthread_attr_setguardsize.c b/libc/thread/pthread_attr_setguardsize.c
index 2905a7605..2e03607b2 100644
--- a/libc/thread/pthread_attr_setguardsize.c
+++ b/libc/thread/pthread_attr_setguardsize.c
@@ -16,7 +16,6 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/errno.h"
 #include "libc/thread/thread.h"
 
 /**
@@ -33,11 +32,8 @@
  *
  * @param guardsize contains guard size in bytes
  * @return 0 on success, or errno on error
- * @raise EINVAL if `guardsize` is zero
  */
 errno_t pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize) {
-  if (!guardsize)
-    return EINVAL;
   attr->__guardsize = guardsize;
   return 0;
 }