Проблема с USB 3.0 внешним хардом.

Добрый вечер. После покупки появилась пробема...

Перекомпилил ядро с поддержкой усб 3.0, хард видится, монтируется, но скорость записи 32-35 мб\сек, почти как на усб 2.0 хардах. А должна быть около 50 мб\сек мин.

dmesg вывод:

[ 3.434090] usb 9-3: new high speed USB device using xhci_hcd and address 0
[ 3.489301] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep
[ 3.491459] usb 9-3: default language 0x0409
[ 3.491800] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep
[ 3.494300] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep
[ 3.496801] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep
[ 3.498870] usb 9-3: udev 2, busnum 9, minor = 1025
[ 3.498872] usb 9-3: New USB device found, idVendor=1058, idProduct=1123
[ 3.500906] usb 9-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3.502954] usb 9-3: Product: My Book 3.0
[ 3.504994] usb 9-3: Manufacturer: Western Digital
[ 3.507031] usb 9-3: SerialNumber: 574341545230373735303831
[ 3.509171] usb 9-3: usb_probe_device
[ 3.509175] usb 9-3: configuration #1 chosen from 1 choice
[ 3.509438] usb 9-3: Successful Endpoint Configure command
[ 3.509811] usb 9-3: adding 9-3:1.0 (config #1, interface 0)
[ 3.509942] usb-storage 9-3:1.0: usb_probe_interface
[ 3.509946] usb-storage 9-3:1.0: usb_probe_interface - got id
[ 3.510015] scsi7 : usb-storage 9-3:1.0
[ 3.512178] drivers/usb/core/inode.c: creating file '002'
[ 3.512196] hub 1-0:1.0: state 7 ports 6 chg 0000 evt 0040
[ 3.512203] hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0000
[ 4.512532] usb 9-3: ep 0x3 - urb len = 0x1f (31), addr = 0x36aaa000, num_trbs = 1
[ 4.512559] usb 9-3: ep 0x3 - asked for 31 bytes, 0 bytes untransferred
[ 4.512572] usb 9-3: ep 0x84 - urb len = 36, sglist used, num_trbs = 1

Последние 3 строчки повторяюся ( ОЧЕНЬ МНОГО раз )

После некоторого простоя:

[ 1712.859825] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep
[ 1712.860823] xhci_hcd 0000:04:00.0: WARN: Stalled endpoint

Версия ядра 2.6.34-r1

.config:
http://pastebin.com/BTUdnseZ

lsusb -vvv вывод:

http://pastebin.com/ZYz8KUsN

lspci:

04:00.0 USB Controller: NEC Corporation Device 0194 (rev 03)