On Mon, Oct 11, 2010 at 1:53 PM, Ming Lei <tom.leiming@xxxxxxxxx> wrote: > 2010/10/11 Grazvydas Ignotas <notasas@xxxxxxxxx>: >>>> which effectively disables DMA due to a bug in it, so it's probably >>>> DMA problems on my board. Here is my log: >>> >>> Yes, your issue may be related with ep1out Rx DMA, but I am not sure >>> since the very important message between timestamp 39.256011 and >>> 85.210693 is not provided by you, why not post all messages? >> >> I did not remove any messages (only added annotation), there was >> simply no output. I suppose something wrong happens after > > If so, no any rx interrupt for ep1out comes after request is queued since > musb_g_rx is not called from your log. > > There is two possibilities: > > - usb host does not send any packets to ep1out > > - packets has been sent from usb host to musb gadget, but omap3 > is not notified by musb rx interrupt, or there is no musb rx > interrupt. > > You can trace usb traffic in usb host to see if there are packets sent > to ep1out, usbmon can do it for you, please see Documentation/usb/usbmon.txt > for reference. If no packets are traced for ep1out, your problem is nothing > to do with musb, and may should be related with usb host driver(usbnet?). ok here are usbmon logs, taken using same scenario: http://notaz.gp2x.de/misc/pnd/linux_next_20101008_usbmon and here is usbmon log when musb runs in PIO mode and ping works: http://notaz.gp2x.de/misc/pnd/linux_next_20101008_usbmon_nodma So maybe it's ep2in issue after all? -- 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
