On Thu, Feb 25, 2010 at 02:36:02PM -0500, Alan Stern wrote: > On Thu, 25 Feb 2010, Sarah Sharp wrote: > > > > > now, I unplug the USB DVD drive: > > > > > > > > Feb 25 17:35:38 tonkachi kernel: [ 276.374282] xhci_hcd 0000:02:00.0: > > > > WARN: transfer error on endpoint > > > > Feb 25 17:35:39 tonkachi kernel: [ 276.728151] xhci_hcd 0000:02:00.0: > > > > WARN: transfer error on endpoint > > > > Feb 25 17:35:39 tonkachi kernel: [ 276.728819] xhci_hcd 0000:02:00.0: > > > > WARN: transfer error on endpoint > > Shouldn't there be some messages here about "USB disconnect"? This > suggests there's something wrong with the root hub. True. I can't tell exactly what's going on without CONFIG_USB_XHCI_HCD_DEBUGGING. It's possible the xHCI host never notified the driver of the disconnect, or there's a bug in the xHCI hub emulation code. Sarah Sharp -- 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
