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' > > -Mathias > Thanks, Jörg
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