On Tue, 20 May 2014, Heinz Diehl wrote: > Hi, > > the use of the ASMedia AS2105 controller on USB 3.0 leads to the > syslog being spammed with a lot of entries like this: > > usb 9-2: reset SuperSpeed USB device number 3 using xhci_hcd > [ 232.682214] usb 9-2: Parent hub missing LPM exit latency info. Power > management will be impacted. > [ 232.683435] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with > disabled ep ffff8800c751ff00 > [ 232.683444] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with > disabled ep ffff8800c751ff40 > > After some minutes, the filesystem on the HDD gets corrupted, and the > HDD gets unmounted/dropped out (disconnected). > > Tried three totally different machines with different hardware > components, with the same result. The AS2105 works flawlessly using > Windows 7-64, as it does connected to USB 2.0/1.1 in Linux.
I have no idea if this will help, but you can try posting a usbmon trace showing what happens when the device is plugged in and the errors occur. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
