Почему система становится ломающейся при подключении к Интернету?

Почему, когда я подключаю свой нетбук к Интернету через LAN или Wifi, вся система становится лагги? Даже когда он находится в режиме ожидания, на мониторе процессора отображается 100% -ное использование при подключении. У меня была эта проблема примерно через полгода, так как я установил Ubuntu 11.10.

В настоящее время я использую Ubuntu 12.04 LTS на нетбуке Toshiba NB-105 Satellite с 1 ГБ ОЗУ и 1 ГГц Intel Процессор Atom.

Вот мой syslog:

$ tail -n 30 /var/log/syslog
May 23 02:45:28 jesselan-NB-105 kernel: [17552.933099] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:45:28 jesselan-NB-105 kernel: [17552.935345] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:45:28 jesselan-NB-105 kernel: [17552.935360] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:46:20 jesselan-NB-105 kernel: [17604.643371] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:46:20 jesselan-NB-105 kernel: [17604.649520] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:46:20 jesselan-NB-105 kernel: [17604.649547] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:47:11 jesselan-NB-105 kernel: [17656.349121] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:47:11 jesselan-NB-105 kernel: [17656.351373] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:47:11 jesselan-NB-105 kernel: [17656.351392] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:48:03 jesselan-NB-105 kernel: [17708.069032] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:48:03 jesselan-NB-105 kernel: [17708.071240] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:48:03 jesselan-NB-105 kernel: [17708.071254] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:48:55 jesselan-NB-105 kernel: [17759.901056] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:48:55 jesselan-NB-105 kernel: [17759.903757] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:48:55 jesselan-NB-105 kernel: [17759.903774] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:49:48 jesselan-NB-105 kernel: [17812.913124] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:49:48 jesselan-NB-105 kernel: [17812.915338] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:49:48 jesselan-NB-105 kernel: [17812.915365] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:50:40 jesselan-NB-105 kernel: [17864.205232] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:50:40 jesselan-NB-105 kernel: [17864.207449] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:50:40 jesselan-NB-105 kernel: [17864.207461] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:51:34 jesselan-NB-105 kernel: [17918.353070] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:51:34 jesselan-NB-105 kernel: [17918.355337] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:51:34 jesselan-NB-105 kernel: [17918.355347] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:52:25 jesselan-NB-105 kernel: [17969.913237] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:52:25 jesselan-NB-105 kernel: [17969.915480] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:52:25 jesselan-NB-105 kernel: [17969.915506] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:53:17 jesselan-NB-105 kernel: [18021.721949] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:53:17 jesselan-NB-105 kernel: [18021.724196] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:53:17 jesselan-NB-105 kernel: [18021.724210] sd 6:0:0:0: [sdb] Assuming drive cache: write through

. Следуя предложению agc93, чтобы проверить, какие запущенные процессы наиболее интенсивно работают в CPU, похоже, что это gwibber.service а затем Google Chrome и Ubuntu One. Что мне делать с этим?