Hi Mathias, On Tue, 2015-09-15 at 16:18 +-0300, Mathias Nyman wrote: +AD4- On 10.09.2015 14:54, Alexey Brodkin wrote: +AD4- I'm not sure what happens here, have you tried the 4.2 kernel? I've just tried vanilla 4.3-rc1 and see exactly the same picture. +AD4- If I send additional xhci debugging patches can you apply and test them? Sure+ACE- +AD4- An additional usbmon trace showing which URBs are actually sent could help. Below are simple +ACI-usbmon+ACI- outputs. If there's a need for additional options for usbmon let me know which ones I need to pass. Successful run: ---------------------------+AD4-8------------------------- 09c4b540 0.363288 S Ci:1:002:0 s 80 06 0300 0000 00ff 255 +ADw- 09c4b540 0.363389 C Ci:1:002:0 0 4 +AD0- 04030904 09c4b540 0.363438 S Ci:1:002:0 s 80 06 0305 0409 00ff 255 +ADw- 09c4b540 0.363537 C Ci:1:002:0 0 14 +AD0- 0e033800 38003000 34003700 3500 . . 8 . 8 . 0 . 4 . 7 . 5 . 09c4b540 0.363587 S Co:1:002:0 s 00 09 0001 0000 0000 0 09c4b540 0.363621 C Co:1:002:0 0 0 09c4b540 0.363748 S Ci:1:002:0 s 80 06 0300 0000 00ff 255 +ADw- 09c4b540 0.363849 C Ci:1:002:0 0 4 +AD0- 04030904 09c4b540 0.363893 S Ci:1:002:0 s 80 06 0305 0409 00ff 255 +ADw- 09c4b540 0.363993 C Ci:1:002:0 0 14 +AD0- 0e033800 38003000 34003700 3500 . . 8 . 8 . 0 . 4 . 7 . 5 . 09c4b540 0.364046 S Co:1:002:0 s 00 09 0001 0000 0000 0 09c4b540 0.364058 C Co:1:002:0 0 0 09c4b540 0.364124 S Bi:1:002:2 - 65664 +ADw- 09c4b540 0.374150 C Bi:1:002:2 -2 0 09c4b540 0.374248 S Bo:1:002:1 - 5 +AD0- 0b000000 38 . . . . 8 09c4b540 0.374261 C Bo:1:002:1 0 5 +AD4- 09c4b540 0.374312 S Bi:1:002:2 - 65664 +ADw- 09c4b540 0.374368 C Bi:1:002:2 0 73 +AD0- 00000000 00000001 08200716 00000000 00000000 00100400 00000000 00000000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09c4b540 0.374434 S Bo:1:002:1 - 5 +AD0- 0c000000 00 09c4b540 0.374449 C Bo:1:002:1 0 5 +AD4- 09c4b540 0.374488 S Bi:1:002:2 - 65664 +ADw- 09c4b540 0.374498 C Bi:1:002:2 0 21 +AD0- 00000000 00010101 12201220 18420100 00000000 00 . . . . . . . . . . . B . . . . . . . 09c4b540 0.374552 S Bo:1:002:1 - 5 +AD0- 0d000000 00 09c4b540 0.374561 C Bo:1:002:1 0 5 +AD4- 09c4b540 0.374597 S Bi:1:002:2 - 65664 +ADw- 09c4b540 0.374605 C Bi:1:002:2 0 37 +AD0- 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ---------------------------+AD4-8------------------------- Failed run: ---------------------------+AD4-8------------------------- 081ade40 5.512105 S Ci:1:002:0 s 80 06 0300 0000 00ff 255 +ADw- 081ade40 5.514388 C Ci:1:002:0 0 4 +AD0- 04030904 c92cda80 5.514417 S Ci:1:002:0 s 80 06 0305 0409 00ff 255 +ADw- c92cda80 5.514492 C Ci:1:002:0 0 14 +AD0- 0e033800 38003000 34003700 3500 . . 8 . 8 . 0 . 4 . 7 . 5 . 0a6aef00 5.516150 S Co:1:002:0 s 00 09 0001 0000 0000 0 0a6aef00 5.516167 C Co:1:002:0 0 0 0a6ae780 5.516289 S Ci:1:002:0 s 80 06 0300 0000 00ff 255 +ADw- 0a6ae780 5.516366 C Ci:1:002:0 0 4 +AD0- 04030904 0a6ae780 5.516380 S Ci:1:002:0 s 80 06 0305 0409 00ff 255 +ADw- 0a6ae780 5.516454 C Ci:1:002:0 0 14 +AD0- 0e033800 38003000 34003700 3500 . . 8 . 8 . 0 . 4 . 7 . 5 . 0a6ae780 5.516466 S Co:1:002:0 s 00 09 0001 0000 0000 0 0a6ae780 5.516494 C Co:1:002:0 0 0 0a6ae780 5.516525 S Bi:1:002:2 - 65664 +ADw- 0a6ae780 5.526555 C Bi:1:002:2 -2 0 0a6ae780 5.526590 S Bo:1:002:1 - 5 +AD0- 0b000000 38 . . . . 8 0a6ae780 5.526604 C Bo:1:002:1 0 5 +AD4- 0a6ae780 5.526637 S Bi:1:002:2 - 65664 +ADw- +ADw- 5 seconds delay+AD4- 0a6ae780 10.526672 C Bi:1:002:2 -2 0 c92cd3c0 10.526789 S Bo:1:002:1 - 5 +AD0- 0c000000 38 . . . . 8 c92cd3c0 10.526802 C Bo:1:002:1 0 5 +AD4- c92cd3c0 10.526833 S Bi:1:002:2 - 65664 +ADw- +ADw- 5 seconds delay+AD4- c92cd3c0 15.526862 C Bi:1:002:2 -2 0 08fa46c0 15.526975 S Bo:1:002:1 - 5 +AD0- 0d000000 38 . . . . 8 08fa46c0 15.526989 C Bo:1:002:1 0 5 +AD4- 08fa46c0 15.527034 S Bi:1:002:2 - 65664 +ADw- 08fa46c0 15.527045 C Bi:1:002:2 0 37 +AD0- 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ---------------------------+AD4-8-------------------------+AFw- -Alexey-- 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