Re: kern/56115: uvideo does not work on rpi4

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR kern/56115; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56115: uvideo does not work on rpi4
Date: Sat, 10 Jul 2021 09:38:32 -0000 (UTC)

 mlelstv%serpens.de@localhost (Michael van Elst) writes:
 
 >The following reply was made to PR kern/56115; it has been noted by GNATS.
 
 >From: mlelstv%serpens.de@localhost (Michael van Elst)
 >To: gnats-bugs%netbsd.org@localhost
 >Cc: 
 >Subject: Re: kern/56115: uvideo does not work on rpi4
 >Date: Sat, 10 Jul 2021 07:22:50 -0000 (UTC)
 
 > sc.dying%gmail.com@localhost writes:
 > 
 > >Currently Max ESIT Payload in periodic endpoint context is 0.
 > >VL805 on rpi4 strictly treats this value as an upper limit of transfer
 > >size for periodic endpoint, so the xfer fails with Bandwidth Overrun Error.
 > 
 > >Attached diff should fix it.
 > 
 > Also fixes USB audio.
 > 
 
 
 But it probably exposes a different issue then (uaudio has some
 extra debug output):
 
 [  9769.030793] audio0(uaudio0): trigger_input failed: errno=5
 
 EIO. Either uaudio_chan_open() or uaudio_chan_alloc_buffers() failed.
 
 [  9769.030793] audio0(uaudio0): audio_drain: device timeout, seq=7, usrbuf=46336/H69120, outbuf=2880/11520
 [  9769.030793] uaudio0: ptransfer error 6
 
 That's USBD_CANCELLED.
 
 
 [  9769.030793] panic: kernel diagnostic assertion "xfer == SIMPLEQ_FIRST(&pipe->up_queue)" failed: file "/scratch/netbsd-current/src/sys/dev/usb/usbdi.c", line 1050 xfer 0xffff0000d6f2e580 is not start of queue (0xffff0000d6f2e440 is at start)
 [  9769.030793] cpu0: Begin traceback...
 [  9769.030793] trace fp ffffc0009de17af0
 [  9769.030793] fp ffffc0009de17b20 vpanic() at ffffc0000056b5bc netbsd:vpanic+0x14c
 [  9769.030793] fp ffffc0009de17b80 kern_assert() at ffffc000007dea88 netbsd:kern_assert+0x58
 [  9769.030793] fp ffffc0009de17c10 usb_transfer_complete() at ffffc00000141600 netbsd:usb_transfer_complete+0x38c
 [  9769.030793] fp ffffc0009de17c50 xhci_softintr() at ffffc000001ef69c netbsd:xhci_softintr+0x478
 [  9769.030793] fp ffffc0009de17cd0 usb_soft_intr() at ffffc0000013d368 netbsd:usb_soft_intr+0x24
 [  9769.030793] fp ffffc0009de17d30 softint_dispatch() at ffffc00000534fe0 netbsd:softint_dispatch+0xe0
 [  9769.030793] fp ffffc0009dda8cc0 cpu_switchto_softint() at ffffc000000a5800 netbsd:cpu_switchto_softint+0x70
 [  9769.030793] fp 0000000000000000 max_watchpoint() at ffffc00000c466fc ffffc00000c466fc
 [  9769.030793] cpu0: End traceback...