2015-03-10 15:03 GMT+01:00 Jörg Otte <jrg.otte@xxxxxxxxx>: > 2015-03-10 14:06 GMT+01:00 Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>: >> On 10.03.2015 11:40, Jörg Otte wrote: >>> If I plug in my USB DVB-T stick I get the following in dmesg: >>> >>> dvb-usb: found a 'TerraTec/qanu USB2.0 Highspeed DVB-T Receiver' in warm state. >>> dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. >>> DVB: registering new adapter (TerraTec/qanu USB2.0 Highspeed DVB-T Receiver) >>> usb 1-1: DVB: registering adapter 0 frontend 0 (TerraTec/qanu USB2.0 >>> Highspeed DVB-T Receiver)... >>> input: IR-receiver inside an USB DVB receiver as >>> /devices/pci0000:00/0000:00:14.0/usb1/1-1/input/input17 >>> dvb-usb: schedule remote query interval to 50 msecs. >>> xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of >>> current TD ep_index 1 comp_code 1 >>> xhci_hcd 0000:00:14.0: Looking for event-dma 0000000207540400 >>> trb-start 0000000207540420 trb-end 0000000207540420 seg-start >>> 00000002075404 >>> xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of >>> current TD ep_index 1 comp_code 1 >>> xhci_hcd 0000:00:14.0: Looking for event-dma 0000000207540410 >>> trb-start 0000000207540420 trb-end 0000000207540420 seg-start >>> 00000002075404 >>> dvb-usb: bulk message failed: -110 (2/0) >>> >>> and DVB-T is not functional. The problem came in with: >>> >>> 1163d50 Merge tag 'usb-4.0-rc3' of >>> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb >>> >>> I never had this xhci_hcd error before so this is a regression. >>> >>> >>> Thanks, Jörg >> >> Oh, thanks. >> >> Looks like we get an event for a TRB we just moved past. >> >> Any chance you could take a log with xhci debugging enabled before attaching the DVB-T >> stick? >> >> echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control >> >> > > here it comes attached. > > >> I'd suspect one of these two patches: >> >> commit 45ba2154d12fc43b70312198ec47085f10be801a >> xhci: fix reporting of 0-sized URBs in control endpoint >> >> commit 27082e2654dc148078b0abdfc3c8e5ccbde0ebfa >> xhci: Clear the host side toggle manually when endpoint is 'soft reset' >> Revert the commits. The second one "xhci: Clear the host side..." is it ! Thanks, Jörg -- 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
