From f84c9e227bacf32a71cfc449c6c33b632f50b6df Mon Sep 17 00:00:00 2001
From: Amos Jeffries <squid3@treenet.co.nz>
Date: Fri, 20 Jul 2012 19:09:39 -0600
Subject: [PATCH] Bug 3556 Workaround: epoll assertion failed: comm.cc:1093:
 isOpen(fd)

---
 src/comm.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/comm.cc b/src/comm.cc
index e39f66b1a8..878b1bb545 100644
--- a/src/comm.cc
+++ b/src/comm.cc
@@ -1090,7 +1090,11 @@ _comm_close(int fd, char const *file, int line)
         return;
 
     /* The following fails because ipc.c is doing calls to pipe() to create sockets! */
-    assert(isOpen(fd));
+    if (!isOpen(fd)) {
+        debugs(50, DBG_IMPORTANT, HERE << "BUG 3556: FD " << fd << " is not an open socket.");
+        // XXX: do we need to run close(fd) or fd_close(fd) here?
+        return;
+    }
 
     assert(F->type != FD_FILE);
 
-- 
2.47.2