На этом участке лога было задержано два пакета гдето на две секуды (идущие от удаленной машины к нам). У меня впечатление что надо более подробный лог.
Mar 1 14:56:48 bj2 last message repeated 26 times
Mar 1 14:56:48 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:48 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:48 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:49 bj2 last message repeated 32 times
Mar 1 14:56:49 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:49 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:49 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:49 bj2 last message repeated 39 times
Mar 1 14:56:49 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:49 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:49 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:50 bj2 last message repeated 39 times
Mar 1 14:56:50 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:50 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:50 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:51 bj2 last message repeated 27 times
Mar 1 14:56:51 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:51 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:51 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:51 bj2 last message repeated 26 times
Mar 1 14:56:51 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:51 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:51 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:52 bj2 last message repeated 26 times
Mar 1 14:56:52 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:52 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:52 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:52 bj2 last message repeated 25 times
Mar 1 14:56:52 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:52 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:52 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:53 bj2 last message repeated 26 times
Mar 1 14:56:53 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:53 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:53 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:53 bj2 last message repeated 26 times
Mar 1 14:56:53 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:53 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:53 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:54 bj2 last message repeated 25 times
Mar 1 14:56:54 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:54 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:54 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:54 bj2 last message repeated 26 times
Mar 1 14:56:54 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:54 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:54 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:55 bj2 last message repeated 26 times
Mar 1 14:56:55 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:55 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:55 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:56 bj2 last message repeated 25 times
Mar 1 14:56:56 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:56 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:56 bj2 kernel: usbserial.c: serial_write_room - port 0
Mar 1 14:56:56 bj2 last message repeated 26 times
Mar 1 14:56:56 bj2 kernel: usbserial.c: __serial_write - port 0, 4 byte(s)
Mar 1 14:56:56 bj2 kernel: usbserial.c: port_softint - port 0
Mar 1 14:56:56 bj2 kernel: usbserial.c: serial_write_room - port 0