This adds a "break" at the end of the RECORD_SYS_RECVFROM case in
record_linux_system_call.  This seemed correct to me.
2018-05-04  Tom Tromey  <tom@tromey.com>
	* linux-record.c (record_linux_system_call) <case
	RECORD_SYS_RECVFROM>: Add "break".
+2018-05-04  Tom Tromey  <tom@tromey.com>
+
+       * linux-record.c (record_linux_system_call) <case
+       RECORD_SYS_RECVFROM>: Add "break".
+
 2018-05-04  Tom Tromey  <tom@tromey.com>
 
        * mi/mi-main.c (mi_cmd_trace_frame_collected) <REGISTERS_FORMAT>:
 
              if (record_linux_sockaddr (regcache, tdep, tmpulongest, len))
                return -1;
            }
+         break;
        case RECORD_SYS_RECV:
          regcache_raw_read_unsigned (regcache, tdep->arg2,
                                      &tmpulongest);