Hi,
I have a navigation device (Navilock NL-8002U USB 2.0 Multi GNSS
Receiver) that registers itself as a umodem. This device starts
spitting out data the moment you plug it in.
On amd64 it seems to behave, but on armv7 I see two (maybe related) problems.
The first problem:
$ doas cu -l cuaU0 gets me:
cu: tcsetattr: Operation not permitted
$
snippet of ktrace:
98810 cu CALL fcntl(3,F_ISATTY)
98810 cu RET fcntl 1
98810 cu CALL kbind(0xbfff0d64,12,0x597af14c5495c4bc)
98810 cu RET kbind 0
98810 cu CALL ioctl(3,TIOCEXCL,0x2a5308b6)
98810 cu RET ioctl 0
98810 cu CALL ioctl(3,TIOCGETA,0xb47a014)
98810 cu RET ioctl 0
98810 cu CALL kbind(0xbfff0d64,12,0x597af14c5495c4bc)
98810 cu RET kbind 0
98810 cu CALL kbind(0xbfff0d64,12,0x597af14c5495c4bc)
98810 cu RET kbind 0
98810 cu CALL ioctl(3,TIOCSETAF,0xbfff0dd0)
98810 cu RET ioctl -1 errno 1 Operation not permitted
This is tcsetattr doing TCSAFLUSH
A quick debufg statement showed fp->f_type == DTYPE_VNODE &&
(vp->v_flag & VISTTY) being true...
The second problem is:
Once in a while the above command ends in a panic:
panic: ehci_device_clear_toggle: queue active
Stopped at db_enter: ldrb r15, [r15, r15, ror r15]!
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter
rlv=0xc03f4514 rfp=0xce678e38
ehci_device_intr_done
rlv=0xc03d80ac rfp=0xce678e60
usbd_clear_endpoint_stall_async+0x3c
rlv=0xc0421050 rfp=0xce678e90
ucomwritecb+0x138
rlv=0xc03d7c98 rfp=0xce678eb0
usb_transfer_complete+0x248
rlv=0xc03f2fd4 rfp=0xce678ed8
ehci_softintr+0x158
rlv=0xc060f1fc rfp=0xce678ef8
softintr_dispatch+0x88
rlv=0xc04c2860 rfp=0xce678f20
arm_do_pending_intr+0xd4
rlv=0xc062de80 rfp=0xce678f48
ampintc_irq_handler+0x188
rlv=0xc0369c40 rfp=0xce678fa8
irq_entry+0x78
rlv=0xc03c9b0c rfp=0xc09caf60
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
30760 269279 22256 1000 3 0x10008b pause ksh
22256 359091 75313 1000 3 0x90 select sshd
75313 489871 52778 0 3 0x92 poll sshd
39590 17879 1 0 3 0x100083 ttyin getty
14580 375990 1 0 3 0x100098 poll cron
65661 93652 1 110 3 0x100090 poll sndiod
89428 380436 1 99 3 0x100090 poll sndiod
16531 17371 19532 95 3 0x100092 kqread smtpd
37829 206637 19532 103 3 0x100092 kqread smtpd
80588 177174 19532 95 3 0x100092 kqread smtpd
27750 516927 19532 95 3 0x100092 kqread smtpd
6333 265931 19532 95 3 0x100092 kqread smtpd
48693 212975 19532 95 3 0x100092 kqread smtpd
19532 199315 1 0 3 0x100080 kqread smtpd
52778 9679 1 0 3 0x80 select sshd
88404 115359 1 0 3 0x100080 poll ntpd
52625 216875 19866 83 3 0x100092 poll ntpd
19866 233431 1 83 3 0x100092 poll ntpd
52912 179612 1 53 3 0x90 kqread unbound
2276 302495 17233 74 3 0x100092 bpf pflogd
17233 24631 1 0 3 0x80 netio pflogd
71094 434772 58306 73 3 0x100090 kqread syslogd
58306 207959 1 0 3 0x100082 netio syslogd
68934 338374 31294 115 3 0x100092 kqread slaacd
95992 45997 31294 115 3 0x100092 kqread slaacd
31294 264847 1 0 3 0x100080 kqread slaacd
21738 176494 0 0 3 0x14200 pgzero zerothread
7467 113892 0 0 3 0x14200 aiodoned aiodoned
23411 10451 0 0 3 0x14200 syncer update
8355 97239 0 0 3 0x14200 cleaner cleaner
27887 221760 0 0 3 0x14200 reaper reaper
24598 94694 0 0 3 0x14200 pgdaemon pagedaemon
37970 308957 0 0 3 0x14200 bored crynlk
69197 163401 0 0 3 0x14200 bored crypto
87870 45626 0 0 3 0x14200 mmctsk sdmmc2
62965 463088 0 0 3 0x14200 mmctsk sdmmc1
43499 41837 0 0 3 0x14200 mmctsk sdmmc0
37042 265180 0 0 3 0x14200 usbtsk usbtask
38838 167254 0 0 3 0x14200 usbatsk usbatsk
27583 520971 0 0 3 0x14200 bored softnet
31265 164371 0 0 3 0x14200 bored systqmp
26614 225651 0 0 3 0x14200 bored systq
62494 175743 0 0 3 0x40014200 bored softclock
* 9652 452730 0 0 7 0x40014200 idle0
27308 426878 0 0 3 0x14200 bored smr
64999 465467 0 0 3 0x14200 kmalloc kmthread
1 435904 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
Any clue on how to debug this?
OpenBSD 6.6-beta (GENERIC) #0: Wed Aug 14 12:02:58 CEST 2019
o...@wand.intra.drijf.net:/usr/src/sys/arch/armv7/compile/GENERIC
real mem = 2111688704 (2013MB)
avail mem = 2060709888 (1965MB)
mainbus0 at root: Wandboard i.MX6 Quad Board rev B1
cpu0 at mainbus0: ARM Cortex-A9 r2p10 (ARMv7)
cpu0: DC enabled IC enabled WB disabled EABT branch prediction enabled
cpu0: 32KB(32b/l,4way) I-cache, 32KB(32b/l,4way) wr-back D-cache
cortex0 at mainbus0
amptimer0 at cortex0: tick rate 396000 KHz
armliicc0 at cortex0: rtl 7 waymask: 0x0000000f
imxtemp0 at mainbus0simplebus0 at mainbus0: "soc"
ampintc0 at simplebus0 nirq 160, ncpu 4: "interrupt-controller"
"dma-apbh" at simplebus0 not configured
"hdmi" at simplebus0 not configured
"gpu" at simplebus0 not configured
"gpu" at simplebus0 not configured
"timer" at simplebus0 not configured
"l2-cache" at simplebus0 not configured
simplebus1 at simplebus0: "aips-bus"
imxccm0 at simplebus1
imxanatop0 at simplebus1
syscon0 at simplebus1: "snvs"
imxrtc0 at syscon0
"snvs-lpgpr" at syscon0 not configured
syscon1 at simplebus1: "iomuxc-gpr"
"mux-controller" at syscon1 not configured
"ipu1_csi0_mux" at syscon1 not configured
"ipu2_csi1_mux" at syscon1 not configured
imxiomuxc0 at simplebus1
simplebus2 at simplebus1: "spba-bus"
"spdif" at simplebus2 not configured
imxuart0 at simplebus2: console
"ssi" at simplebus2 not configured
"asrc" at simplebus2 not configured
"vpu" at simplebus1 not configured
"gpt" at simplebus1 not configured
imxgpio0 at simplebus1
imxgpio1 at simplebus1
imxgpio2 at simplebus1
imxgpio3 at simplebus1
imxgpio4 at simplebus1
imxgpio5 at simplebus1
imxgpio6 at simplebus1
imxdog0 at simplebus1
"usbphy" at simplebus1 not configured
"usbphy" at simplebus1 not configured
"src" at simplebus1 not configured
imxgpc0 at simplebus1
"sdma" at simplebus1 not configured
simplebus3 at simplebus0: "aips-bus"
syscon2 at simplebus3: "ocotp"
"caam" at simplebus3 not configured
imxehci0 at simplebus3
usb0 at imxehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "i.MX EHCI root hub" rev 2.00/1.00
addr 1
imxehci1 at simplebus3
usb1 at imxehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "i.MX EHCI root hub" rev 2.00/1.00
addr 1
"usbmisc" at simplebus3 not configured
fec0 at simplebus3
fec0: address 00:1f:7b:b4:06:10
atphy0 at fec0 phy 1: AR8035 10/100/1000 PHY, rev. 4
imxesdhc0 at simplebus3
imxesdhc0: 198 MHz base clock
sdmmc0 at imxesdhc0: 4-bit, sd high-speed, mmc high-speed, dma
imxesdhc1 at simplebus3
imxesdhc1: 198 MHz base clock
sdmmc1 at imxesdhc1: 4-bit, sd high-speed, mmc high-speed, dma
imxesdhc2 at simplebus3
imxesdhc2: 198 MHz base clock
sdmmc2 at imxesdhc2: 4-bit, sd high-speed, mmc high-speed, dma
imxiic0 at simplebus3
iic0 at imxiic0
imxiic1 at simplebus3
iic1 at imxiic1
"fsl,sgtl5000" at iic1 addr 0xa not configured
"mmdc" at simplebus3 not configured
"audmux" at simplebus3 not configured
"vdoa" at simplebus3 not configured
imxuart1 at simplebus3
"ipu" at simplebus0 not configured
"sram" at simplebus0 not configured
imxahci0 at simplebus0: AHCI 1.3
imxahci0: port 0: 3.0Gb/s
scsibus0 at imxahci0: 32 targets
sd0 at scsibus0 targ 0 lun 0: <ATA, KINGSTON SV300S3, 608A> SCSI3 0/direct
fixed naa.50026b736503c6f1
sd0: 114473MB, 512 bytes/sector, 234441648 sectors, thin
"gpu" at simplebus0 not configured
"ipu" at simplebus0 not configured
scsibus1 at sdmmc2: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <SD/MMC, SU16G, 0080> SCSI2 0/direct removable
sd1: 15193MB, 512 bytes/sector, 31116288 sectors
bwfm0 at sdmmc1 function 1
bwfm0: SoC interconnect SB not implemented
bwfm0: cannot attach chip
manufacturer 0x02d0, product 0x4329 at sdmmc1 function 2 not configured
manufacturer 0x02d0, product 0x4329 at sdmmc1 function 3 not configured
umodem0 at uhub1 port 1 configuration 1 interface 0 "u-blox AG - www.u-blox.com
u-blox GNSS receiver" rev 1.10/3.01 addr 2
umodem0: data interface 1, has CM over data, has no break
umodem0: status change notification available
ucom0 at umodem0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
bootfile: sd0a:/bsd
boot device: sd0
root on sd1a (d1e4f9a54e2211c2.a) swap on sd1b dump on sd1b
The lines below show the lhs and rhs of the if statement for the
pledge handling code:
cond: 1 8
cond: 1 8
cond: 1 8
cond: 1 8
cond: 1 8
cond: 1 8
cond: 1 8
