On Mon, 4 Mar 2013, Lan Tianyu wrote: > Test on the Sandybridge platform. > At the first time, I get following output. But after that, I was > hard to get any output. And test on the v3.8. You have to unplug the flash drive after running the test each time. By the way, be sure to apply Clemens Ladisch's fix to the test program: http://marc.info/?l=linux-usb&m=136226443502631&w=2 > sudo ./ehci-test /dev/bus/usb/001/003 > [ 140.855342] usb-storage 1-1.2:1.0: disconnect by usbfs > Invalid URB stat[ 140.863000] ehci-pci 0000:00:1a.0: shutdown urb > ffff88014545f300 ep1in-bulk > [ 140.871303] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f0c0 ep1in-bulk > [ 140.878231] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545fcc0 ep1in-bulk > [ 140.885158] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545fb40 ep1in-bulk > [ 140.892088] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f9c0 ep1in-bulk > [ 140.899015] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f780 ep1in-bulk > [ 140.905941] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f240 ep1in-bulk > [ 140.912870] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f900 ep1in-bulk > [ 140.919799] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545fc00 ep1in-bulk > [ 140.926725] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f540 ep1in-bulk > [ 140.933655] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f3c0 ep1in-bulk > [ 140.940583] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545fd80 ep1in-bulk > [ 140.947512] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f600 ep1in-bulk > [ 140.954440] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f180 ep1in-bulk > [ 140.961368] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f000 ep1in-bulk > [ 140.968297] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545fa80 ep1in-bulk > [ 140.975223] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545f840 ep1in-bulk > us -32, act len [ 140.982151] ehci-pci 0000:00:1a.0: shutdown urb > ffff88014545fe40 ep1in-bulk > [ 140.990459] ehci-pci 0000:00:1a.0: shutdown urb ffff88014545ff00 ep1in-bulk > [ 140.997388] ehci-pci 0000:00:1a.0: shutdown urb ffff880145f08000 ep1in-bulk > [ 141.004316] ehci-pci 0000:00:1a.0: shutdown urb ffff880145f080c0 ep1in-bulk > [ 141.011245] ehci-pci 0000:00:1a.0: shutdown urb ffff880145f08180 ep1in-bulk The fix to the test program ought to help with this. 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
