diff --git a/poky/bitbake/lib/bb/runqueue.py b/poky/bitbake/lib/bb/runqueue.py
index 0bb3bc2..48788f4 100644
--- a/poky/bitbake/lib/bb/runqueue.py
+++ b/poky/bitbake/lib/bb/runqueue.py
@@ -212,6 +212,10 @@
                     exceeds_cpu_pressure =  self.rq.max_cpu_pressure and (float(curr_cpu_pressure) - float(self.prev_cpu_pressure)) > self.rq.max_cpu_pressure
                     exceeds_io_pressure =  self.rq.max_io_pressure and (float(curr_io_pressure) - float(self.prev_io_pressure)) > self.rq.max_io_pressure
                     exceeds_memory_pressure = self.rq.max_memory_pressure and (float(curr_memory_pressure) - float(self.prev_memory_pressure)) > self.rq.max_memory_pressure
+            pressure_state = (exceeds_cpu_pressure, exceeds_io_pressure, exceeds_memory_pressure)
+            if hasattr(self, "pressure_state") and pressure_state != self.pressure_state:
+                bb.note("Pressure status changed to CPU: %s, IO: %s, Mem: %s" % pressure_state)
+            self.pressure_state = pressure_state
             return (exceeds_cpu_pressure or exceeds_io_pressure or exceeds_memory_pressure)
         return False
 
@@ -1991,11 +1995,19 @@
                 self.setbuildable(revdep)
                 logger.debug("Marking task %s as buildable", revdep)
 
-        for t in self.sq_deferred.copy():
+        found = None
+        for t in sorted(self.sq_deferred.copy()):
             if self.sq_deferred[t] == task:
-                logger.debug2("Deferred task %s now buildable" % t)
-                del self.sq_deferred[t]
-                update_scenequeue_data([t], self.sqdata, self.rqdata, self.rq, self.cooker, self.stampcache, self, summary=False)
+                # Allow the next deferred task to run. Any other deferred tasks should be deferred after that task.
+                # We shouldn't allow all to run at once as it is prone to races.
+                if not found:
+                    bb.debug(1, "Deferred task %s now buildable" % t)
+                    del self.sq_deferred[t]
+                    update_scenequeue_data([t], self.sqdata, self.rqdata, self.rq, self.cooker, self.stampcache, self, summary=False)
+                    found = t
+                else:
+                    bb.debug(1, "Deferring %s after %s" % (t, found))
+                    self.sq_deferred[t] = found
 
     def task_complete(self, task):
         self.stats.taskCompleted()
@@ -2932,7 +2944,7 @@
                 sqdata.hashes[h] = tid
             else:
                 sqrq.sq_deferred[tid] = sqdata.hashes[h]
-                bb.note("Deferring %s after %s" % (tid, sqdata.hashes[h]))
+                bb.debug(1, "Deferring %s after %s" % (tid, sqdata.hashes[h]))
 
     update_scenequeue_data(sqdata.sq_revdeps, sqdata, rqdata, rq, cooker, stampcache, sqrq, summary=True)