Kernel crash in kern_sched.c

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Kernel crash in kern_sched.c

jes@posteo.de
Hi,

while switching networks a kernel crash appeared:

ddb{0}> show panic
kernel diagnostic assertion "p->p_wchan == NULL" failed: file
"/usr/src/sys/kern/kern_sched.c", line 328

Steps were:

ifconfig iwm0 down
route -n flush
sh /etc/netstart axen0

Crash happened while netstarting axen0.
Screenshot at https://imgur.com/gallery/tjd9C

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Re: Kernel crash in kern_sched.c

jes@posteo.de
Hi,

it happened again. Steps:

Suspending laptop while connected to wifi via iwm0.
Wake up laptop without reconnecting to any wifi.
Plugged in the axen driven usb network card and netstarting axen0.
Crash while doing netstart.

More pictures. I'll try to reproduce it on a APU2 with a serial attached
later.

https://imgur.com/a/D2S7u

The old picture got moved:

https://imgur.com/a/tjd9C


Am 25.01.2018 18:07 schrieb [hidden email]:

> Hi,
>
> while switching networks a kernel crash appeared:
>
> ddb{0}> show panic
> kernel diagnostic assertion "p->p_wchan == NULL" failed: file
> "/usr/src/sys/kern/kern_sched.c", line 328
>
> Steps were:
>
> ifconfig iwm0 down
> route -n flush
> sh /etc/netstart axen0
>
> Crash happened while netstarting axen0.
> Screenshot at https://imgur.com/gallery/tjd9C

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Re: Kernel crash in kern_sched.c

jes@posteo.de
Hi,

dmesg from running system.

OpenBSD 6.2-current (GENERIC.MP) #386: Tue Jan 23 22:24:47 MST 2018
     [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17008246784 (16220MB)
avail mem = 16485855232 (15722MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xe0000 (105 entries)
bios0: vendor Dell Inc. version "1.7.0" date 12/15/2017
bios0: Dell Inc. XPS 15 9560
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT MCFG HPET SSDT BOOT SSDT SSDT
HPET SSDT UEFI SSDT LPIT WSMT SSDT SSDT SSDT SSDT DBGP DBG2 SSDT MSDM
SLIC SSDT NHLT TPM2 SSDT ASF! DMAR BGRT
acpi0: wakeup devices PEGP(S4) PEG0(S4) PEGP(S4) PEG1(S4) PEGP(S4)
PEG2(S4) PXSX(S4) RP09(S4) PXSX(S4) RP10(S4) PXSX(S4) RP11(S4) PXSX(S4)
RP12(S4) PXSX(S4) RP13(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) i7-7700HQ CPU @ 2.80GHz, 2694.75 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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 23MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz, 2693.72 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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) i7-7700HQ CPU @ 2.80GHz, 2693.72 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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) i7-7700HQ CPU @ 2.80GHz, 2693.72 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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) i7-7700HQ CPU @ 2.80GHz, 2693.72 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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) i7-7700HQ CPU @ 2.80GHz, 2693.73 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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) i7-7700HQ CPU @ 2.80GHz, 2693.72 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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) i7-7700HQ CPU @ 2.80GHz, 2693.73 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,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,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, 120 pins
acpimcfg0 at acpi0 addr 0xf0000000, bus 0-127
acpihpet0 at acpi0: 23999999 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (PEG0)
acpiprt2 at acpi0: bus -1 (PEG1)
acpiprt3 at acpi0: bus -1 (PEG2)
acpiprt4 at acpi0: bus 4 (RP09)
acpiprt5 at acpi0: bus -1 (RP10)
acpiprt6 at acpi0: bus -1 (RP11)
acpiprt7 at acpi0: bus -1 (RP12)
acpiprt8 at acpi0: bus 5 (RP13)
acpiprt9 at acpi0: bus 2 (RP01)
acpiprt10 at acpi0: bus 3 (RP02)
acpiprt11 at acpi0: bus -1 (RP03)
acpiprt12 at acpi0: bus -1 (RP04)
acpiprt13 at acpi0: bus -1 (RP05)
acpiprt14 at acpi0: bus -1 (RP06)
acpiprt15 at acpi0: bus -1 (RP07)
acpiprt16 at acpi0: bus -1 (RP08)
acpiprt17 at acpi0: bus -1 (RP17)
acpiprt18 at acpi0: bus -1 (RP18)
acpiprt19 at acpi0: bus -1 (RP19)
acpiprt20 at acpi0: bus -1 (RP20)
acpiprt21 at acpi0: bus -1 (RP21)
acpiprt22 at acpi0: bus -1 (RP22)
acpiprt23 at acpi0: bus -1 (RP23)
acpiprt24 at acpi0: bus -1 (RP24)
acpiprt25 at acpi0: bus -1 (RP14)
acpiprt26 at acpi0: bus 6 (RP15)
acpiprt27 at acpi0: bus -1 (RP16)
acpiec0 at acpi0
acpiec at acpi0 not configured
acpicpu0 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu4 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu5 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu6 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu7 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PG00, resource for PEG0
acpipwrres1 at acpi0: PG01, resource for PEG1
acpipwrres2 at acpi0: PG02, resource for PEG2
acpipwrres3 at acpi0: WRST
acpipwrres4 at acpi0: WRST
acpipwrres5 at acpi0: WRST
acpipwrres6 at acpi0: WRST
acpipwrres7 at acpi0: WRST
acpipwrres8 at acpi0: WRST
acpipwrres9 at acpi0: WRST
acpipwrres10 at acpi0: WRST
acpipwrres11 at acpi0: WRST
acpipwrres12 at acpi0: WRST
acpipwrres13 at acpi0: WRST
acpipwrres14 at acpi0: WRST
acpipwrres15 at acpi0: WRST
acpipwrres16 at acpi0: WRST
acpipwrres17 at acpi0: WRST
acpipwrres18 at acpi0: WRST
acpipwrres19 at acpi0: WRST
acpipwrres20 at acpi0: WRST
acpipwrres21 at acpi0: WRST
acpipwrres22 at acpi0: WRST
acpitz0 at acpi0: critical temperature is 107 degC
"INT3F0D" at acpi0 not configured
"INT3403" at acpi0 not configured
"INT3403" at acpi0 not configured
"INT3403" at acpi0 not configured
"INT3403" at acpi0 not configured
"INT3403" at acpi0 not configured
"DLLK07BE" at acpi0 not configured
"DLL07BE" at acpi0 not configured
"XXXX0000" at acpi0 not configured
"INT3403" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT33A1" at acpi0 not configured
"MSFT0101" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpibtn0 at acpi0: LID0
acpibtn1 at acpi0: PBTN
acpibtn2 at acpi0: SBTN
acpiac0 at acpi0: AC unit online
acpibat0 at acpi0: BAT0 model "DELL 5XJ2878" serial 10488 type LION oem
"LGC-LGC8.33"
"INT33D5" at acpi0 not configured
"INT340E" at acpi0 not configured
"INT3400" at acpi0 not configured
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: LCD_
cpu0: Enhanced SpeedStep 2694 MHz: speeds: 2801, 2800, 2700, 2500, 2400,
2200, 2100, 1900, 1700, 1600, 1500, 1400, 1200, 1100, 900, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 vendor "Intel", unknown product 0x5910
rev 0x05
ppb0 at pci0 dev 1 function 0 "Intel Core 6G PCIE" rev 0x05: msi
pci1 at ppb0 bus 1
vendor "NVIDIA", unknown product 0x1c8d (class display subclass 3D, rev
0xa1) at pci1 dev 0 function 0 not configured
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 630" rev 0x04
drm0 at inteldrm0
inteldrm0: msi
error: [drm:pid0:i915_firmware_load_error_print] *ERROR* failed to load
firmware i915/kbl_dmc_ver1.bin (-22)
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel Core 6G Thermal" rev 0x05 at pci0 dev 4 function 0 not configured
xhci0 at pci0 dev 20 function 0 "Intel 100 Series xHCI" rev 0x31: msi
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
pchtemp0 at pci0 dev 20 function 2 "Intel 100 Series Thermal" rev 0x31
"Intel 100 Series I2C" rev 0x31 at pci0 dev 21 function 0 not configured
"Intel 100 Series I2C" rev 0x31 at pci0 dev 21 function 1 not configured
"Intel 100 Series MEI" rev 0x31 at pci0 dev 22 function 0 not configured
ahci0 at pci0 dev 23 function 0 "Intel 100 Series AHCI" rev 0x31: msi,
AHCI 1.3.1
ahci0: PHY offline on port 1
scsibus1 at ahci0: 32 targets
ppb1 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1: msi
pci2 at ppb1 bus 2
iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless-AC 8265" rev
0x78, msi
ppb2 at pci0 dev 28 function 1 "Intel 100 Series PCIE" rev 0xf1: msi
pci3 at ppb2 bus 3
rtsx0 at pci3 dev 0 function 0 "Realtek RTS525A Card Reader" rev 0x01:
msi
sdmmc0 at rtsx0: 4-bit, dma
ppb3 at pci0 dev 29 function 0 "Intel 100 Series PCIE" rev 0xf1: msi
pci4 at ppb3 bus 4
nvme0 at pci4 dev 0 function 0 unknown vendor 0x15b7 product 0x5001 rev
0x00: apic 2 int 16, NVMe 1.2
nvme0: A400 NVMe SanDisk 512GB, firmware A3582012, serial 173219425636
scsibus2 at nvme0: 1 targets
sd0 at scsibus2 targ 0 lun 0: <NVMe, A400 NVMe SanDis, A358> SCSI4
0/direct fixed
sd0: 488386MB, 512 bytes/sector, 1000215216 sectors
ppb4 at pci0 dev 29 function 4 "Intel 100 Series PCIE" rev 0xf1
pci5 at ppb4 bus 5
ppb5 at pci0 dev 29 function 6 "Intel 100 Series PCIE" rev 0xf1: msi
pci6 at ppb5 bus 6
pcib0 at pci0 dev 31 function 0 vendor "Intel", unknown product 0xa152
rev 0x31
"Intel 100 Series PMC" rev 0x31 at pci0 dev 31 function 2 not configured
azalia0 at pci0 dev 31 function 3 vendor "Intel", unknown product 0xa171
rev 0x31: msi
azalia0: codecs: Realtek/0x0298, Intel/0x280b, using Realtek/0x0298
audio0 at azalia0
ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x31:
apic 2 int 16
iic0 at ichiic0
iic0: addr 0x29 0f=33 10=08 11=91 12=ab 13=52 14=b3 15=20 16=22 17=1b
18=20 19=92 1a=70 1b=74 1c=c0 1e=20 20=07 22=40 2f=20 30=95 32=0e 33=10
8f=33 90=08 91=91 92=ab 93=52 94=b3 95=20 96=22 97=1b 98=20 99=92 9a=70
9b=74 9c=c0 9e=20 a0=07 a2=40 af=20 b0=95 b2=0e b3=10 words 00=0000
01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
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 clickpad, firmware 8.2, 0x1e2b1 0x840300
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
ugen0 at uhub0 port 4 "Intel Bluetooth" rev 2.00/0.10 addr 2
axen0 at uhub0 port 18 configuration 1 interface 0 "ASIX Elec. Corp.
AX88179" rev 3.00/1.00 addr 3
axen0: AX88179, address 00:0e:c6:d9:c7:e3
rgephy0 at axen0 phy 3: RTL8169S/8110S/8211 PHY, rev. 5
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
softraid0: sd1 was not shutdown properly
sd1 at scsibus4 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct
fixed
sd1: 244190MB, 512 bytes/sector, 500102640 sectors
root on sd1a (d68ab7281e4b2dab.a) swap on sd1b dump on sd1b
WARNING: / was not properly unmounted
iwm0: hw rev 0x230, fw ver 22.361476.0, address f8:34:41:d5:5c:aa
invalid buffer(pkt#55), continue
iwm0: unhandled firmware response 0xff/0xb8000010 rx ring 0[6]
iwm0: unhandled firmware response 0xff/0xb8000010 rx ring 1[114]
uhidev0 at uhub0 port 1 configuration 1 interface 0 "PixArt USB Optical
Mouse" rev 1.10/1.00 addr 4
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
iwm0: unhandled firmware response 0xff/0xb8000010 rx ring 8[232]

Am 26.01.2018 09:50 schrieb Gabriel Kihlman:

> why are you not including a dmesg?
>
>
> On 2018-01-26 09:47, [hidden email] wrote:
>> Hi,
>>
>> it happened again. Steps:
>>
>> Suspending laptop while connected to wifi via iwm0.
>> Wake up laptop without reconnecting to any wifi.
>> Plugged in the axen driven usb network card and netstarting axen0.
>> Crash while doing netstart.
>>
>> More pictures. I'll try to reproduce it on a APU2 with a serial
>> attached later.
>>
>> https://imgur.com/a/D2S7u
>>
>> The old picture got moved:
>>
>> https://imgur.com/a/tjd9C
>>
>>
>> Am 25.01.2018 18:07 schrieb [hidden email]:
>>> Hi,
>>>
>>> while switching networks a kernel crash appeared:
>>>
>>> ddb{0}> show panic
>>> kernel diagnostic assertion "p->p_wchan == NULL" failed: file
>>> "/usr/src/sys/kern/kern_sched.c", line 328
>>>
>>> Steps were:
>>>
>>> ifconfig iwm0 down
>>> route -n flush
>>> sh /etc/netstart axen0
>>>
>>> Crash happened while netstarting axen0.
>>> Screenshot at https://imgur.com/gallery/tjd9C