Putting out the burning tree on Windows. Turns out you can completely starve threads by not yielding on windows/vmware, really weird.

src/rt/rust_dom.cpp

@@ -400,9 +400,9 @@ rust_dom::start_main_loop()
 
         rust_task *scheduled_task = schedule_task();
 
-        // If we cannot schedule a task because all other live tasks
-        // are blocked, yield and hopefully some progress is made in
-        // other domains.
+        // The scheduler busy waits until a task is available for scheduling.
+        // Eventually we'll want a smarter way to do this, perhaps sleep
+        // for a minimum amount of time.
 
         if (scheduled_task == NULL) {
             if (_log.is_tracing(rust_log::TASK)) {

src/rt/sync/sync.cpp

@@ -5,7 +5,7 @@ void sync::yield() {
 #ifdef __APPLE__
     pthread_yield_np();
 #elif __WIN32__
-
+    Sleep(1);
 #else
     pthread_yield();
 #endif

src/rt/sync/timer.cpp

@@ -6,12 +6,12 @@
 #endif
 
 timer::timer() {
-    reset(0);
 #if __WIN32__
     uint64_t ticks_per_second;
     QueryPerformanceFrequency((LARGE_INTEGER *)&ticks_per_second);
     _ticks_per_us = ticks_per_second / 1000000;
 #endif
+    reset(0);
 }
 
 void