Index: source/Host/common/MainLoop.cpp
===================================================================
--- source/Host/common/MainLoop.cpp
+++ source/Host/common/MainLoop.cpp
@@ -105,8 +105,11 @@
   for (auto &fd : loop.m_read_fds)
     EV_SET(&in_events[i++], fd.first, EVFILT_READ, EV_ADD, 0, 0, 0);
 
-  num_events = kevent(loop.m_kqueue, in_events.data(), in_events.size(),
-                      out_events, llvm::array_lengthof(out_events), nullptr);
+  do {
+    errno = 0;
+    num_events = kevent(loop.m_kqueue, in_events.data(), in_events.size(),
+                        out_events, llvm::array_lengthof(out_events), nullptr);
+  } while (num_events == -1 && errno == EINTR);
 
   if (num_events < 0)
     return Status("kevent() failed with error %d\n", num_events);