Date: Thu, 26 Nov 2020 16:26:58 +0100 From: Thomas Steen Rasmussen <thomas@gibfest.dk> To: Hans Petter Selasky <hps@selasky.org> Cc: usb@freebsd.org Subject: Re: webcamd, usb and two webcams - only one works Message-ID: <0330eee1-e22c-82b9-1c50-4e8c42bf9466@gibfest.dk> In-Reply-To: <638a1059-f8dc-59c5-21ff-aabc380cac28@selasky.org> References: <c11c1a2f-306f-3cd9-825f-4c39fd250d50@gibfest.dk> <9a382539-c90d-91b9-bfac-f36c0f19d3f7@selasky.org> <723be24d-b2fe-85df-4961-5483004050e8@gibfest.dk> <f49afce8-e055-d432-b374-4af10bf7d70e@selasky.org> <cdadc525-e4f9-6cde-26f3-15d7594bd5ee@gibfest.dk> <6c527c1f-62a6-3089-50b8-02cda74b4eb1@selasky.org> <13180470-0336-b115-ce31-bc392ff8da76@gibfest.dk> <638a1059-f8dc-59c5-21ff-aabc380cac28@selasky.org>
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On 11/26/20 4:08 PM, Hans Petter Selasky wrote: > On 11/26/20 3:38 PM, Thomas Steen Rasmussen wrote: >> I tried swapping the webcams around, the error is always with the >> second webcam connected (so video2), regardless of which webcam it is. > > Hi, > > Might be a bug in the XHCI controller driver or XHCI HW, that the > isochronous transactions don't get scheduling time. > > Do you have the possibility to test on another computer running FreeBSD? I do actually, let me get that setup. > > There is a debug knob for the XHCI controller, > > sysctl hw.usb.xhci.debug > > Try flipping it to 17 for a second while in the "timeout" state, and > then flip it back to 0. Prints end up in dmesg and /var/log/messages . > It might sched some more details into the exact XHCI error code. I included some of the dmesg output from the xhci debug here: ====================== xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x11aff1d80 xhci_dump_trb: trb = 0xfffffe00339f2010 xhci_dump_trb: qwTrb0 = 0x000000011aff1d80 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1d80 xhci_dump_trb: qwTrb0 = 0x000000011ae5ac00 xhci_dump_trb: dwTrb2 = 0x00040400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe00339f1d90 xhci_dump_trb: qwTrb0 = 0x000000011ae5b000 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x11aff1c00 xhci_dump_trb: trb = 0xfffffe00339f1da0 xhci_dump_trb: qwTrb0 = 0x000000011aff1c00 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1c00 xhci_dump_trb: qwTrb0 = 0x000000011ae5b800 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe00339f1c10 xhci_dump_trb: qwTrb0 = 0x000000011ae5c000 xhci_dump_trb: dwTrb2 = 0x00020400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x11aff1a80 xhci_dump_trb: trb = 0xfffffe00339f1c20 xhci_dump_trb: qwTrb0 = 0x000000011aff1a80 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1a80 xhci_dump_trb: qwTrb0 = 0x000000011ae5c400 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x11aff1900 xhci_dump_trb: trb = 0xfffffe00339f1a90 xhci_dump_trb: qwTrb0 = 0x000000011aff1900 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1900 xhci_dump_trb: qwTrb0 = 0x000000011ae5d000 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x11aff1780 xhci_dump_trb: trb = 0xfffffe00339f1910 xhci_dump_trb: qwTrb0 = 0x000000011aff1780 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1780 xhci_dump_trb: qwTrb0 = 0x000000011ae5dc00 xhci_dump_trb: dwTrb2 = 0x00040400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe00339f1790 xhci_dump_trb: qwTrb0 = 0x000000011ae5e000 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x11aff1600 xhci_dump_trb: trb = 0xfffffe00339f17a0 xhci_dump_trb: qwTrb0 = 0x000000011aff1600 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1600 xhci_dump_trb: qwTrb0 = 0x000000011ae5e800 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe00339f1610 xhci_dump_trb: qwTrb0 = 0x000000011ae5f000 xhci_dump_trb: dwTrb2 = 0x00020400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x11aff1480 xhci_dump_trb: trb = 0xfffffe00339f1620 xhci_dump_trb: qwTrb0 = 0x000000011aff1480 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe00339f1480 xhci_dump_trb: qwTrb0 = 0x000000011ae5f400 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x11aff1300 xhci_dump_trb: trb = 0xfffffe00339f1490 xhci_dump_trb: qwTrb0 = 0x000000011aff1300 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_setup_generic_chain: first=0xfffff800102c6400 last=0xfffffe00339f1480 xhci_transfer_insert: xhci_dump_trb: trb = 0xfffffe00339f1490 xhci_dump_trb: qwTrb0 = 0x0000000096c80820 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001821 xhci_dump_trb: trb = 0xfffff80096c80810 xhci_dump_trb: qwTrb0 = 0x00000000102c6400 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00000000 xhci_transfer_insert: qh_pos = 1 xhci_interrupt: real interrupt (status=0x00000008) xhci_interrupt_poll: event[20] = 37 (0x0000000000000000 0x0c000000 0x00009400) xhci_interrupt_poll: Unhandled event = 37 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0001 xhci_roothub_exec: UR_GET_STATUS i=1 xhci_roothub_exec: port status=0x000002a0 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0002 xhci_roothub_exec: UR_GET_STATUS i=2 xhci_roothub_exec: port status=0x000002a0 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0003 xhci_roothub_exec: UR_GET_STATUS i=3 xhci_roothub_exec: port status=0x00000e03 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0004 xhci_roothub_exec: UR_GET_STATUS i=4 xhci_roothub_exec: port status=0x00000e03 xhci_timeout: xfer=0xfffffe00337af148 xhci_device_done: xfer=0xfffffe00337af148, endpoint=0xfffff8011a9e6968, error=20 xhci_device_done: xfer=0xfffffe0030694148, endpoint=0xfffff8011a9e6968, error=20 xhci_dump_endpoint: pep = 0xfffffe00337ae140 xhci_set_hw_power: xhci_dump_endpoint: dwEpCtx0=0x00000000 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0001 xhci_dump_endpoint: dwEpCtx1=0x04000228 xhci_dump_endpoint: qwEpCtx2=0x0000000096c80801 xhci_dump_endpoint: dwEpCtx4=0x0c000c00 xhci_dump_endpoint: dwEpCtx5=0x00000000 xhci_dump_endpoint: dwEpCtx6=0x00000000 xhci_dump_endpoint: dwEpCtx7=0x00000000 xhci_cmd_stop_ep: xhci_roothub_exec: UR_GET_STATUS i=1 xhci_roothub_exec: port status=0x000002a0 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0002 xhci_roothub_exec: UR_GET_STATUS i=2 xhci_roothub_exec: port status=0x000002a0 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0003 xhci_roothub_exec: UR_GET_STATUS i=3 xhci_roothub_exec: port status=0x00000e03 xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000 wIndex=0x0004 xhci_roothub_exec: UR_GET_STATUS i=4 xhci_roothub_exec: port status=0x00000e03 xhci_do_command: command[13] = 15 (0x0000000000000000, 0x00000000, 0x02093c00) xhci_interrupt: real interrupt (status=0x00000008) xhci_interrupt_poll: event[21] = 33 (0x00000001002f8e50 0x05000000 0x02008400) xhci_check_command: Received command event xhci_configure_reset_endpoint: Could not stop endpoint 9 xhci_cmd_set_tr_dequeue_ptr: xhci_do_command: command[14] = 16 (0x0000000096c80801, 0x00000000, 0x02094000) xhci_interrupt: real interrupt (status=0x00000008) xhci_interrupt_poll: event[22] = 33 (0x00000001002f8e60 0x05000000 0x02008400) xhci_check_command: Received command event xhci_configure_reset_endpoint: Could not set dequeue ptr for endpoint 9 xhci_cmd_evaluate_ctx: xhci_do_command: command[0] = 13 (0x00000001265ae000, 0x00000000, 0x02003400) xhci_interrupt: real interrupt (status=0x00000008) xhci_interrupt_poll: event[23] = 33 (0x00000001002f8d80 0x01000000 0x02008400) xhci_check_command: Received command event xhci_device_generic_enter: xhci_setup_generic_chain: MFINDEX=0x0000260f xhci_setup_generic_chain: start next=9767 xhci_dump_trb: trb = 0xfffff8011ad0e800 xhci_dump_trb: qwTrb0 = 0x0000000122ad1000 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x4c421415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x122bf8d80 xhci_dump_trb: trb = 0xfffff8011ad0e810 xhci_dump_trb: qwTrb0 = 0x0000000122bf8d80 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8d80 xhci_dump_trb: qwTrb0 = 0x0000000122ad1c00 xhci_dump_trb: dwTrb2 = 0x00040400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe0033bf8d90 xhci_dump_trb: qwTrb0 = 0x0000000122ad2000 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x122bf8c00 xhci_dump_trb: trb = 0xfffffe0033bf8da0 xhci_dump_trb: qwTrb0 = 0x0000000122bf8c00 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8c00 xhci_dump_trb: qwTrb0 = 0x0000000122ad2800 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe0033bf8c10 xhci_dump_trb: qwTrb0 = 0x0000000122ad3000 xhci_dump_trb: dwTrb2 = 0x00020400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x122bf8a80 xhci_dump_trb: trb = 0xfffffe0033bf8c20 xhci_dump_trb: qwTrb0 = 0x0000000122bf8a80 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8a80 xhci_dump_trb: qwTrb0 = 0x0000000122ad3400 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x122bf8900 xhci_dump_trb: trb = 0xfffffe0033bf8a90 xhci_dump_trb: qwTrb0 = 0x0000000122bf8900 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8900 xhci_dump_trb: qwTrb0 = 0x0000000122ad4000 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x122bf8780 xhci_dump_trb: trb = 0xfffffe0033bf8910 xhci_dump_trb: qwTrb0 = 0x0000000122bf8780 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8780 xhci_dump_trb: qwTrb0 = 0x0000000122ad4c00 xhci_dump_trb: dwTrb2 = 0x00040400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe0033bf8790 xhci_dump_trb: qwTrb0 = 0x0000000122ad5000 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x122bf8600 xhci_dump_trb: trb = 0xfffffe0033bf87a0 xhci_dump_trb: qwTrb0 = 0x0000000122bf8600 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8600 xhci_dump_trb: qwTrb0 = 0x0000000122ad5800 xhci_dump_trb: dwTrb2 = 0x00020800 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe0033bf8610 xhci_dump_trb: qwTrb0 = 0x0000000122ad6000 xhci_dump_trb: dwTrb2 = 0x00020400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=2 xhci_setup_generic_chain_sub: LINK=0x122bf8480 xhci_dump_trb: trb = 0xfffffe0033bf8620 xhci_dump_trb: qwTrb0 = 0x0000000122bf8480 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8480 xhci_dump_trb: qwTrb0 = 0x0000000122ad6400 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x122bf8300 xhci_dump_trb: trb = 0xfffffe0033bf8490 xhci_dump_trb: qwTrb0 = 0x0000000122bf8300 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8300 xhci_dump_trb: qwTrb0 = 0x0000000122ad7000 xhci_dump_trb: dwTrb2 = 0x00020c00 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_setup_generic_chain_sub: NTRB=1 xhci_setup_generic_chain_sub: LINK=0x122bf8180 xhci_dump_trb: trb = 0xfffffe0033bf8310 xhci_dump_trb: qwTrb0 = 0x0000000122bf8180 xhci_dump_trb: dwTrb2 = 0x00000000 xhci_dump_trb: dwTrb3 = 0x00001831 xhci_dump_trb: trb = 0xfffffe0033bf8180 xhci_dump_trb: qwTrb0 = 0x0000000122ad7c00 xhci_dump_trb: dwTrb2 = 0x00040400 xhci_dump_trb: dwTrb3 = 0x80021415 xhci_dump_trb: trb = 0xfffffe0033bf8190 ======================= The full dmesg output is here but it is just more of the same it seems: https://dpaste.org/qodA
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