2016-05-23 16:35 GMT+03:00 Bin Liu <b-liu@xxxxxx>: > Hi, > > On Sat, May 21, 2016 at 08:50:32PM +0300, Matwey V. Kornilov wrote: >> 2016-05-21 6:13 GMT+03:00 Bin Liu <binmlist@xxxxxxxxx>: >> > Hi, >> > >> > On Fri, May 20, 2016 at 4:20 PM, Matwey V. Kornilov <matwey@xxxxxxxxxx> wrote: >> >> 2016-05-21 0:12 GMT+03:00 Bin Liu <b-liu@xxxxxx>: >> >>> Hi, >> >>> >> >>> On Sat, May 21, 2016 at 12:05:06AM +0300, Matwey V. Kornilov wrote: >> >>>> By the way, is it ok that function musb_rx_dma_iso_cppi41 uses >> >>>> hw_ep->tx_channel? I would suppose that it should use rx_channel >> >>>> instead. >> >>> >> >>> I just got here, and am wondering the same. But the question is why just >> >>> your case hit the problem. I will try to look at it more next week. >> >>> >> >>> I had an impression the linux-usb@ has a discussion before about >> >>> rx/tx-channel messing up, will have to look it up. >> >>> >> >> >> >> Thank you. >> >> If you need additional info, I can use kgdb with this issue. >> > >> > After reviewed the code, it must be hw_ep->rx_channel instead. It is likely a >> > bug caused by commit 069a3fd (usb: musb: Remove ifdefs for musb_host_rx >> > in musb_host.c part1). Please test with the following patch. >> > >> >> I've just tested this patch. Indeed, it helps to avoid kernel panic. > > Thanks for testing it. > >> Now, I can interact with my webcam and watch video-stream in xawtv. >> It would be great if the patch could become a part of 4.6.x stable tree. > > Sure. > > Would you mind to add your Reported-by in the patch? Sure, please add Reported-by: Matwey V. Kornilov <matwey@xxxxxxxxxx> > > Regards, > -Bin. > -- With best regards, Matwey V. Kornilov. Sternberg Astronomical Institute, Lomonosov Moscow State University, Russia 119991, Moscow, Universitetsky pr-k 13, +7 (495) 9392382 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
