下面的error信息，是什么原因造成的？
[03/12 06:48:56   496 3.error] guest mkdir cache/home/G/guest/-21344 errorno 17
[03/12 07:44:14   284 4.miscdaemon] (unknown user) flush passwd file
[03/12 09:52:10   491 3.error] guest mkdir cache/home/G/guest/-10368 errorno 17
[03/12 09:54:09   493 3.error] enemy mkdir cache/home/E/enemy/9 errorno 17
[03/12 11:18:53   513 3.error] guest mkdir cache/home/G/guest/-4449 errorno 17
[03/12 14:06:48   488 3.error] guest mkdir cache/home/G/guest/-26272 errorno 17
[03/12 14:17:46   496 3.error] wpa mkdir cache/home/W/wpa/4 errorno 17
[03/12 14:33:32   491 3.error] guest mkdir cache/home/G/guest/-22688 errorno 17
[03/12 15:23:25   621 3.error] guest mkdir cache/home/G/guest/-7584 errorno 17
[03/12 16:44:13   490 3.error] guest mkdir cache/home/G/guest/-20128 errorno 17
[03/12 21:06:27   513 3.error] guest mkdir cache/home/G/guest/-13056 errorno 17
[03/12 22:47:07   490 3.error] guest mkdir cache/home/G/guest/-5760 errorno 17
[03/12 22:54:22   490 3.error] guest mkdir cache/home/G/guest/-7392 errorno 17
[03/13 03:56:27   490 3.error] guest mkdir cache/home/G/guest/-2432 errorno 17
[03/13 05:51:28   489 3.error] guest mkdir cache/home/G/guest/-23840 errorno 17
[03/13 07:44:15   284 4.miscdaemon] (unknown user) flush passwd file
--
修改:linton FROM 220.173.136.*
FROM 220.173.136.*