stderr.log message

[Home Alone]

Any idea what these messages from the stderr.log mean?

2012-09-17 17:47:33.027 [STDERR] 1494: packetLen < 0
2012-09-17 17:57:52.801 [STDERR] 10425: packetLen < 0
2012-09-17 18:31:32.706 [STDERR] 28563: packetLen < 0
2012-09-17 18:44:52.601 [STDERR] 8437: packetLen < 0
2012-09-17 19:09:26.817 [STDERR] 710: packetLen < 0
2012-09-17 19:09:26.898 [STDERR] 728: packetLen < 0
2012-09-17 19:09:27.946 [STDERR] 29758: packetLen < 0
2012-09-17 19:20:55.976 [STDERR] 10423: packetLen < 0
2012-09-17 19:22:16.040 [STDERR] 31651: packetLen < 0
2012-09-17 19:44:10.696 [STDERR] 31771: packetLen < 0