Fix for second logic bug when handing oplock breaks and client messages

simultaneously.
Jeremy.

source/smbd/process.c

@@ -207,6 +207,11 @@ static BOOL receive_message_or_smb(char *buffer, int buffer_len, int timeout)
 	   signals */
 	if (selrtn == -1 && errno == EINTR) {
 		async_processing(&fds, buffer, buffer_len);
+		/*
+		 * After async processing we must go and do the select again, as
+		 * the state of the flag in fds for the server file descriptor is
+		 * indeterminate - we may have done I/O on it in the oplock processing. JRA.
+		 */
 		goto again;
 	}
 
@@ -231,7 +236,12 @@ static BOOL receive_message_or_smb(char *buffer, int buffer_len, int timeout)
 
 	if (oplock_message_waiting(&fds)) {
 		async_processing(&fds, buffer, buffer_len);
-		if (!FD_ISSET(smbd_server_fd(),&fds)) goto again;
+		/*
+		 * After async processing we must go and do the select again, as
+		 * the state of the flag in fds for the server file descriptor is
+		 * indeterminate - we may have done I/O on it in the oplock processing. JRA.
+		 */
+		goto again;
 	}
 	
 	return receive_smb(smbd_server_fd(), buffer, 0);