panic while using uvideo on arm64 (RPi3)

Paul de Weerd

2017-06-09 08:45:56 UTC

May not be related to the webcam afterall. Just leaving the machine
idling for a few minutes after boot I get another panic:

panic: pool_do_get: dwc2qtd free list modified: page 0xffffff80042fe000; item addr 0xffffff80042fe070; offset 0x0=0xdead4100
Stopped at panic+0x158: TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at panic+0x154
panic() at pool_get+0x54
pool_get() at dwc2_hcd_urb_enqueue+0x94
dwc2_hcd_urb_enqueue() at dwc2_device_start+0x3c4
dwc2_device_start() at usb_transfer_complete+0x2ec
usb_transfer_complete() at dwc2_softintr+0x74
dwc2_softintr() at softintr_dispatch+0xa0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>

Paul 'WEiRD' de Weerd

On Fri, Jun 09, 2017 at 10:39:45AM +0200, Paul de Weerd wrote:
| I'm getting a panic when trying to use fswebcam to grab an image from
| my webcam on a Raspberry Pi 3:
|
| panic: kernel diagnostic assertion "xfertype != UE_ISOCHRONOUS || xfer->nframes < DWC2_MAXISOCPACKETS" failed: file "/usr/src/sys/dev/usb/dwc2/dwc2.c", line 1306
| Stopped at panic+0x158: TID PID UID PRFLAGS PFLAGS CPU COMMAND
| *502853 41556 0 0x3 0 0 fswebcam
| db_enter() at panic+0x154
| panic() at dwc2_device_start+0x45c
| dwc2_device_start() at usbd_transfer+0x140
| usbd_transfer() at uvideo_vs_start_isoc+0x78
| uvideo_vs_start_isoc() at uvideo_streamon+0xb0
| uvideo_streamon() at VOP_IOCTL+0x3c
| VOP_IOCTL() at vn_ioctl+0x70
| https://www.openbsd.org/ddb.html describes the minimum info required in bug
| reports. Insufficient info makes it difficult to find and fix bugs.
| ddb>
|
| Unfortunately, I seem to be having some issues with my serial console
| cable, as I can't type on the console anymore (I still get output, but
| it doesn't take input).
|
| I'll try to get that sorted and report with more details.
|
| Cheers,
|
| Paul 'WEiRD' de Weerd
|
| OpenBSD 6.1-current (GENERIC) #0: Tue Jun 6 17:36:34 AEST 2017
| ***@arm64.jsg.id.au:/usr/src/sys/arch/arm64/compile/GENERIC
| real mem = 961036288 (916MB)
| avail mem = 905613312 (863MB)
| mainbus0 at root: Raspberry Pi 3 Model B Rev 1.2
| cpu0 at mainbus0: ARM Cortex-A53 r0p4
| simplefb0 at mainbus0: 656x416
| wsdisplay0 at simplefb0 mux 1
| wsdisplay0: screen 0 added (std, vt100 emulation)
| simplebus0 at mainbus0: "soc"
| bcmintc0 at simplebus0
| bcmdog0 at simplebus0
| pluart0 at simplebus0
| com0 at simplebus0: ns16550, no working fifo
| com0: console
| dwctwo0 at simplebus0
| agtimer0 at simplebus0: tick rate 19200 KHz
| simplebus1 at mainbus0: "clocks"
| usb0 at dwctwo0: USB revision 2.0
| uhub0 at usb0 configuration 1 interface 0 "Broadcom DWC2 root hub" rev 2.00/1.00 addr 1
| uhub1 at uhub0 port 1 configuration 1 interface 0 "Standard Microsystems product 0x9514" rev 2.00/2.00 addr 2
| smsc0 at uhub1 port 1 configuration 1 interface 0 "Standard Microsystems SMSC9512/14" rev 2.00/2.00 addr 3
| smsc0: address b8:27:eb:93:42:d5
| ukphy0 at smsc0 phy 1: Generic IEEE 802.3u media interface, rev. 3: OUI 0x0001f0, model 0x000c
| umass0 at uhub1 port 2 configuration 1 interface 0 "SanDisk Ultra Fit" rev 2.10/1.00 addr 4
| umass0: using SCSI over Bulk-Only
| scsibus0 at umass0: 2 targets, initiator 0
| sd0 at scsibus0 targ 1 lun 0: <SanDisk, Ultra Fit, 1.00> SCSI4 0/direct removable serial.07815583320220107303
| sd0: 29327MB, 512 bytes/sector, 60062500 sectors
| uvideo0 at uhub1 port 4 configuration 1 interface 0 "vendor 0x046d Webcam C170" rev 2.00/28.25 addr 5
| video0 at uvideo0
| uaudio0 at uhub1 port 4 configuration 1 interface 2 "vendor 0x046d Webcam C170" rev 2.00/28.25 addr 5
| uaudio0: audio rev 1.00, 2 mixer controls
| audio0 at uaudio0
| urtwn0 at uhub1 port 5 configuration 1 interface 0 "Realtek 802.11n NIC" rev 2.00/0.00 addr 6
| urtwn0: MAC/BB RTL8188EU, RF 6052 1T1R, address ec:08:6b:07:c2:1c
| vscsi0 at root
| scsibus1 at vscsi0: 256 targets
| softraid0 at root
| scsibus2 at softraid0: 256 targets
| bootfile: sd0a:/bsd
| boot device: sd0
| root on sd0a (59de83c8e783b811.a) swap on sd0b dump on sd0b
|
|
| --
| >++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+
| +++++++++++>-]<.>++[<------------>-]<+.--------------.[-]
| http://www.weirdnet.nl/
|

++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+

+++++++++++>-]<.>++[<------------>-]<+.--------------.[-]
http://www.weirdnet.nl/