On Wed, 23 Jun 2010, Andrea Righi wrote: > ffff88007a862cc0 2028329666 S Bi:2:002:1 -115 4096 < > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > device stalls here (in this case with a large URB)... > > ffff88007a862cc0 2058694464 C Bi:2:002:1 -104 0 > > > > I'm about out of ideas. You could look at the qh status values in the > > "async" debugging file while waiting for the URB to time out, but they > > probably won't tell you anything new. > > for this last case: > > $ cat /sys/kernel/debug/usb/ehci/oxu210hp_sph/async > qh/ffff88007b051800 dev2 hs ep1 42002102 40000000 (90008d80* data1 nak0) > ffffc90005001120*in len=4096 10008d80 urb ffff88007a862cc0 Nothing stands out as significant. The values indicate that the controller hasn't received any data from the device, but that's probably not true in reality. 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
