>Synopsis: Unplugging my urtwn device causes an assertion failure in the
>driver code (see trace)
>Category: system kernel amd64
>Environment:
System : OpenBSD 5.8
Details : OpenBSD 5.8-current (GENERIC.MP) #1706: Fri Dec 4
01:49:55 MST 2015
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
In the past, my urtwn(4) device (RTL8192CU chipset, I think) would stop
working after a while, and would start working again after unplugging and
plugging back in. I suspect it stopped working due to overheating, because it's
really hot when I pull it out. Occasionally, this would crash the system.
I upgraded from the Nov 25 snapshot to yesterday's snapshot, and now it
seems to fail every time with an assertion that drops me to the ddb prompt.
Here's the traceback I typed from a picture of the screen:
panic: kernel diagnostic assertion "ifp != NULL" failed: file
"../../../../net/route.c", line 863
Stopped at Debugger+0x9: leave
TID PID UID PRFLAGS PFLAGS CPU COMMAND
18228 18228 77 0x10 0x80 3 dhclient
*26266 26266 0 0x14000 0x200 6 usbtask
Debugger() at Debugger+0x9
panic() at panic+0xfe
__assert() at __assert+0x25
rtrequest_delete() at rtrequest_delete+0x20a
rtdeletemsg() at rtdeletemsg+0xae
rtflushclone1() at rtflushclone1+0x98
rn_walktree() at rn_walktree+0x83
rtrequest_delete() at rtrequest_delete+0x18a
rtdeletemsg() at rtdeletemsg+0xae
rt_if_remove_rtdelete() at rt_if_remove_rtdelete+0x2b
rn_walktree() at rn_walktree+0x83
rt_if_remove() at rt_if_remove+0x58
if_detach() at if_detach+0x9e
urtwn_detach() at urtwn_detach+0x81
end trace frame 0xffff800032cdddc0, count: 0
>How-To-Repeat:
Unplug and plug in the urtwn wifi dongle as described above.
>Fix:
I don't know of a way around this.
dmesg:
OpenBSD 5.8-current (GENERIC.MP) #1706: Fri Dec 4 01:49:55 MST 2015
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8464150528 (8072MB)
avail mem = 8203505664 (7823MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xeb270 (42 entries)
bios0: vendor American Megatrends Inc. version "4.6.5" date 05/24/2012
bios0: CLEVO CO. W240EU/W250EUQ/W270EUQ
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT MCFG SSDT HPET SSDT SSDT SSDT
acpi0: wakeup devices P0P1(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3)
USB6(S3) USB7(S3) PXSX(S5) RP01(S4) PXSX(S5) RP02(S4) PXSX(S5) RP03(S4)
PXSX(S5) RP04(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.95 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 0, core 3, package 0
cpu4 at mainbus0: apid 1 (application processor)
cpu4: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu4:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu4: 256KB 64b/line 8-way L2 cache
cpu4: smt 1, core 0, package 0
cpu5 at mainbus0: apid 3 (application processor)
cpu5: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu5:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu5: 256KB 64b/line 8-way L2 cache
cpu5: smt 1, core 1, package 0
cpu6 at mainbus0: apid 5 (application processor)
cpu6: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu6:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu6: 256KB 64b/line 8-way L2 cache
cpu6: smt 1, core 2, package 0
cpu7 at mainbus0: apid 7 (application processor)
cpu7: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 2394.56 MHz
cpu7:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu7: 256KB 64b/line 8-way L2 cache
cpu7: smt 1, core 3, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus -1 (RP02)
acpiprt3 at acpi0: bus 2 (RP03)
acpiprt4 at acpi0: bus 3 (RP04)
acpiec0 at acpi0
acpicpu0 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu1 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu2 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu3 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu4 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu5 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu6 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu7 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpitz0 at acpi0: critical temperature is 120 degC
acpibtn0 at acpi0: PWRB
acpibtn1 at acpi0: SLPB
acpibtn2 at acpi0: LID0
acpiac0 at acpi0: AC unit online
acpibat0 at acpi0: BAT0 model "BAT" serial 0001 type LION oem "NOTEBOOK"
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: LCD0
cpu0: Enhanced SpeedStep 2394 MHz: speeds: 2401, 2400, 2300, 2200, 2100, 2000,
1900, 1800, 1700, 1600, 1500, 1400, 1300, 1200 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 3G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 4000" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1366x768
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
xhci0 at pci0 dev 20 function 0 "Intel 7 Series xHCI" rev 0x04: msi
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 "Intel xHCI root hub" rev 3.00/1.00 addr 1
"Intel 7 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
ehci0 at pci0 dev 26 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 16
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 7 Series HD Audio" rev 0x04: msi
azalia0: codecs: VIA/0x8446, Intel/0x2806, using VIA/0x8446
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi
pci1 at ppb0 bus 1
ppb1 at pci0 dev 28 function 2 "Intel 7 Series PCIE" rev 0xc4: msi
pci2 at ppb1 bus 2
vendor "Realtek", unknown product 0x8723 (class network subclass miscellaneous,
rev 0x00) at pci2 dev 0 function 0 not configured
ppb2 at pci0 dev 28 function 3 "Intel 7 Series PCIE" rev 0xc4: msi
pci3 at ppb2 bus 3
rtsx0 at pci3 dev 0 function 0 "Realtek RTL8411 Card Reader" rev 0x01: msi
sdmmc0 at rtsx0
re0 at pci3 dev 0 function 2 "Realtek 8168" rev 0x0a: RTL8411 (0x4880), msi,
address 00:90:f5:d8:78:88
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 5
ehci1 at pci0 dev 29 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 23
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel HM76 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 7 Series AHCI" rev 0x04: msi, AHCI 1.3
ahci0: port 0: 3.0Gb/s
ahci0: port 2: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, ST9750420AS, 0001> SCSI3 0/direct fixed
naa.5000c5004631f92c
sd0: 715404MB, 512 bytes/sector, 1465149168 sectors
cd0 at scsibus1 targ 2 lun 0: <MATSHITA, BD-CMB UJ160, 1.00> ATAPI 5/cdrom
removable
ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pms0: Synaptics touchpad, firmware 7.2
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
uhidev0 at uhub0 port 2 configuration 1 interface 0 "MOSART Semi. 2.4G Keyboard
Mouse" rev 1.10/3.18 addr 2
uhidev0: no report descriptor
uhidev1 at uhub0 port 2 configuration 1 interface 1 "MOSART Semi. 2.4G Keyboard
Mouse" rev 1.10/3.18 addr 2
uhidev1: no report descriptor
ugen0 at uhub0 port 3 "Realtek RT Bluetooth Radio" rev 2.00/2.00 addr 3
uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhub4 at uhub2 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (a77c8939b548556e.a) swap on sd0b dump on sd0b
WARNING: / was not properly unmounted
Process (pid 1) got signal 31
usbdevs:
Controller /dev/usb0:
addr 1: super speed, self powered, config 1, xHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 disabled
port 2 addr 2: full speed, power 100 mA, config 1, 2.4G Keyboard
Mouse(0x4101), MOSART Semi.(0x062a), rev 3.18
port 3 addr 3: full speed, power 500 mA, config 1, RT Bluetooth Radio(0x8723),
Realtek(0x0bda), rev 2.00, iSerialNumber 00e04c000001
port 4 disabled
port 5 disabled
port 6 disabled
port 7 disabled
port 8 disabled
Controller /dev/usb1:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 addr 2: high speed, self powered, config 1, Rate Matching Hub(0x0024),
Intel(0x8087), rev 0.00
port 1 powered
port 2 powered
port 3 powered
port 4 powered
port 5 powered
port 6 powered
port 2 powered
Controller /dev/usb2:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 addr 2: high speed, self powered, config 1, Rate Matching Hub(0x0024),
Intel(0x8087), rev 0.00
port 1 powered
port 2 powered
port 3 powered
port 4 powered
port 5 powered
port 6 powered
port 2 powered
