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Ahoj linuxáci, Nedávno jsem si pořídil nový NB Thinkpad T430,má integrovaný USB 3.0 řadič. Nainstaloval jsem na něj Archlinux s kernelem 3.5 a řekl ši, že vyzkouším rychlost tohoto rozhraní. Připojil jsem svůj externí disk ( třeba tady http://www.czc.cz/wd-my-passport-essential-usb-3-0-500gb-cerveny/82768/produkt ) Jádro ovšem začalo protestovat...

[   81.638161] usb 2-1: >new SuperSpeed USB device number 2 using xhci_hcd
[   81.658974] usbcore: registered new interface driver uas
[   81.663146] Initializing USB Mass Storage driver...
[   81.663370] scsi6 : usb-storage 2-1:1.0
[   81.663550] usbcore: registered new interface driver usb-storage
[   81.663553] USB Mass Storage support registered.
[   92.651066] scsi 6:0:0:0: >Direct-Access     WD       My Passport 0730 1012 PQ: 0 ANSI: 6
[   92.651517] sd 6:0:0:0: >[sdc] 976707584 512-byte logical blocks: (500 GB/465 GiB)
[   92.651675] sd 6:0:0:0: >[sdc] Write Protect is off
[   92.651682] sd 6:0:0:0: >[sdc] Mode Sense: 47 00 10 08
[   92.651864] sd 6:0:0:0: >[sdc] No Caching mode page present
[   92.651871] sd 6:0:0:0: >[sdc] Assuming drive cache: write through
[   92.652888] sd 6:0:0:0: >[sdc] No Caching mode page present
[   92.652890] sd 6:0:0:0: >[sdc] Assuming drive cache: write through
[   92.666320]  sdc: sdc1 sdc2
[   92.667233] sd 6:0:0:0: >[sdc] No Caching mode page present
[   92.667236] sd 6:0:0:0: >[sdc] Assuming drive cache: write through
[   92.667238] sd 6:0:0:0: >[sdc] Attached SCSI disk
[   92.774003] usb 2-1: >Device not responding to set address.
[   92.976831] usb 2-1: >Device not responding to set address.
[   93.179907] usb 2-1: >device not accepting address 2, error -71
[   93.286457] usb 2-1: >Device not responding to set address.
[   93.489494] usb 2-1: >Device not responding to set address.
[   93.692514] usb 2-1: >device not accepting address 2, error -71
[   93.799171] usb 2-1: >Device not responding to set address.
[   94.002147] usb 2-1: >Device not responding to set address.
[   94.205164] usb 2-1: >device not accepting address 2, error -71
[   94.311774] usb 2-1: >Device not responding to set address.
[   94.514824] usb 2-1: >Device not responding to set address.
[   94.717855] usb 2-1: >device not accepting address 2, error -71
[   94.717899] usb 2-1: >USB disconnect, device number 2
[   94.721016] xhci_hcd 0000:00:14.0: >xHCI xhci_drop_endpoint called with disabled ep ffff8800b8064cc0
[   94.721024] xhci_hcd 0000:00:14.0: >xHCI xhci_drop_endpoint called with disabled ep ffff8800b8064c80
[   94.827760] usb 2-1: >Device not responding to set address.
[   95.030803] usb 2-1: >Device not responding to set address.
[   95.233807] usb 2-1: >device not accepting address 3, error -71
[   95.340403] usb 2-1: >Device not responding to set address.
[   95.543579] usb 2-1: >Device not responding to set address.
[   95.746524] usb 2-1: >device not accepting address 4, error -71
[   95.853114] usb 2-1: >Device not responding to set address.
[   96.056182] usb 2-1: >Device not responding to set address.
[   96.259183] usb 2-1: >device not accepting address 5, error -71
[   96.365778] usb 2-1: >Device not responding to set address.
[   96.568792] usb 2-1: >Device not responding to set address.
[   96.771846] usb 2-1: >device not accepting address 6, error -71
[   96.771872] hub 2-0:1.0: >unable to enumerate USB device on port 1
[  113.633440] usb 2-1: >Device not responding to set address.
[  113.836497] usb 2-1: >Device not responding to set address.
[  114.039515] usb 2-1: >device not accepting address 7, error -71
[  114.146105] usb 2-1: >Device not responding to set address.
[  114.349168] usb 2-1: >Device not responding to set address.
[  114.552196] usb 2-1: >device not accepting address 8, error -71
[  114.658758] usb 2-1: >Device not responding to set address.
[  114.861836] usb 2-1: >Device not responding to set address.
[  115.064849] usb 2-1: >device not accepting address 9, error -71
[  115.171448] usb 2-1: >Device not responding to set address.
[  115.374483] usb 2-1: >Device not responding to set address.
[  115.577517] usb 2-1: >device not accepting address 10, error -71
[  115.577539] hub 2-0:1.0: >unable to enumerate USB device on port 1

a to je všechno, disk se zastaví a já můžu akorát přepojit disk na USB2.0 port.

Nevzdal jsem to a zjišťoval dál, bootnul jsem do opensuse s kernelem 3.4 a tam disk fungoval. Zkusim jsem zkompilovat vanilla kernel 3.6 a tam jsem dostal úplně stejnou chybu jako v archu. Když jsem googlil, nenarazil jsem na žádné zmínky o tom, že by byly s USB 3.0 nějaké výrazné problémy. Připojil jsem tedy na USB 3.0 port jiný disk, novější generace ( třeba tady http://www.czc.cz/wd-my-passport-generation-2-1tb-cerna/108413/produkt ) a vše běželo jak má, prostě žádný problém.

Vůbec nevím jak tento problém řešit, jestli někam dát bugreport a jaké další info poskytnout. Je to tedy závislé na HW disku a objevilo se to pravděpodobně někde ve verzi 3.4 až 3.5. Kdyby někdo měl nápad jak vyřešit tento problém, sem s nim.

Díky za všechny nápady, všechny další informace není problém poskytnout, stačí říct jaké...