On 03/04/2013 05:36 AM, Ming Lei wrote: > On Tue, Feb 26, 2013 at 4:54 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > >> >> I'd be interested to hear the results of testing on a variety of >> controllers. (This computer also has an NEC EHCI controller, and that >> one does not have the bug.) Do the EHCI controllers on current Intel >> chipsets pass the test? What about other vendors? > > No the 'EHCI hardware bug detected' error are observed on EHCI > of OMAP4 pandaboard. > On OMAP4 panda I was observing the same URB timeout message as Clemens. After applying Clemens' fix [1] to the test code I can't see the problems on OMAP4 Panda anymore. So OMAP EHCI is not affected. [1] http://marc.info/?l=linux-usb&m=136226443502631&w=2 Log below with Transcend Jetflash root@omaphost:~# ehci-test /dev/bus/usb/001/004 [ 34.412078] usb-storage 1-1.3:1.0: disconnect by usbfs 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 cheers, -roger -- 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
