btw i've tested a liitle better and the disk is visible, but write errors occurs after ejecting and inserting it is invisible again [129416.884960] sd 7:0:0:0: [sdc] 1250263728 512-byte logical blocks: (640 GB/596 GiB) [129416.885429] sd 7:0:0:0: [sdc] Write Protect is off [129416.885434] sd 7:0:0:0: [sdc] Mode Sense: 23 00 00 00 [129416.885798] sd 7:0:0:0: [sdc] No Caching mode page found [129416.885801] sd 7:0:0:0: [sdc] Assuming drive cache: write through [129416.885806] device: '8:32': device_add [129416.885820] PM: Adding info for No Bus:8:32 [129416.885831] device: 'sdc': device_add [129416.885847] PM: Adding info for No Bus:sdc [129416.897283] sdc: sdc1 [129416.897291] device: 'sdc1': device_add [129416.897309] PM: Adding info for No Bus:sdc1 [129416.898828] sd 7:0:0:0: [sdc] Attached SCSI disk [129479.043607] usb 3-1: reset SuperSpeed USB device number 3 using xhci_hcd [129483.506009] xhci_hcd 0000:02:00.0: WARNING: Host System Error [129483.529130] xhci_hcd 0000:02:00.0: Host not halted after 16000 microseconds. [129483.529146] DMAR: DRHD: handling fault status reg 2 [129483.529149] DMAR: [DMA Read] Request device [02:00.0] fault addr ffdf1000 [fault reason 06] PTE Read access is not set [129518.953695] xhci_hcd 0000:02:00.0: xHCI host not responding to stop endpoint command. [129518.953702] xhci_hcd 0000:02:00.0: Assuming host is dying, halting host. [129518.976675] xhci_hcd 0000:02:00.0: Host not halted after 16000 microseconds. [129518.976686] xhci_hcd 0000:02:00.0: Non-responsive xHCI host is not halting. [129518.976687] xhci_hcd 0000:02:00.0: Completing active URBs anyway. [129518.976699] xhci_hcd 0000:02:00.0: HC died; cleaning up [129519.841735] sd 7:0:0:0: [sdc] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [129519.841739] sd 7:0:0:0: [sdc] tag#0 CDB: Write(10) 2a 00 00 5b 72 e0 00 08 00 00 [129519.841741] blk_update_request: I/O error, dev sdc, sector 5993184 [129519.841743] Buffer I/O error on dev sdc1, logical block 5991136, lost async page write [129519.841745] Buffer I/O error on dev sdc1, logical block 5991137, lost async page write [129519.841747] Buffer I/O error on dev sdc1, logical block 5991138, lost async page write [129519.841748] Buffer I/O error on dev sdc1, logical block 5991139, lost async page write [129519.841749] Buffer I/O error on dev sdc1, logical block 5991140, lost async page write [129519.841750] Buffer I/O error on dev sdc1, logical block 5991141, lost async page write [129519.841752] Buffer I/O error on dev sdc1, logical block 5991142, lost async page write [129519.841753] Buffer I/O error on dev sdc1, logical block 5991143, lost async page write [129519.841758] Buffer I/O error on dev sdc1, logical block 5991144, lost async page write [129519.841760] Buffer I/O error on dev sdc1, logical block 5991145, lost async page write [129520.841755] sd 7:0:0:0: [sdc] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [129520.841759] sd 7:0:0:0: [sdc] tag#0 CDB: Write(10) 2a 00 00 5b 7a e0 00 08 00 00 [129520.841760] blk_update_request: I/O error, dev sdc, sector 5995232 [129530.516824] xhci_hcd 0000:02:00.0: Stopped the command ring failed, maybe the host is dead [129530.540017] xhci_hcd 0000:02:00.0: Host not halted after 16000 microseconds. [129530.540021] xhci_hcd 0000:02:00.0: Abort command ring failed [129530.540023] xhci_hcd 0000:02:00.0: HC died; cleaning up [129530.540064] usb 2-1: USB disconnect, device number 2 [129530.540067] device: 'ep_81': device_unregister [129530.540083] PM: Removing info for No Bus:ep_81 [129530.540099] bus: 'usb': remove device 2-1:1.0 [129530.540108] device: '2-1-port4': device_unregister [129530.540116] PM: Removing info for No Bus:2-1-port4 2016-09-21 18:08 GMT+03:00 c400 <c400c400@xxxxxxxxx>: > 02:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host > Controller (rev 01) (prog-if 30 [XHCI]) > Subsystem: VIA Technologies, Inc. VL805 USB 3.0 Host Controller > Flags: bus master, fast devsel, latency 0, IRQ 41 > Memory at fbb00000 (64-bit, non-prefetchable) [size=4K] > Capabilities: [80] Power Management version 3 > Capabilities: [90] MSI: Enable+ Count=1/4 Maskable- 64bit+ > Capabilities: [c4] Express Endpoint, MSI 00 > Kernel driver in use: xhci_hcd > Kernel modules: xhci_pci -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html