On Tue, 17 Nov 2009, Rickard Bellini wrote: > > Hi, > > The device has displayed the XactErr problem on a different x86 machine. > Have also tested 3 different hardware of the device. The machine itself > does not exhibit any problems, the device and other USB devices works > without issues running Windows. > > We can sometimes run 2000+ cycles of remote wakup without any > problem, it is just sometimes (when we hit some sweet spot) we trigger > this XactErr and the device detects USB reset. The logs only displays > the last unsuccessful cycle. Try doing this before you start testing: echo on >/sys/bus/usb/devices/usb3/power/level This will prevent the root hub from autosuspending. Although the logs seem to indicate that root-hub autosuspend is not the cause of the problem, I would like to be certain. Alan Stern -- 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
