amd64 machine locks up and becomes unresponsive

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amd64 machine locks up and becomes unresponsive

Nayden Markatchev
>Synopsis: Machine completely locks up and the only recovery is to power cycle it
>Category: system,amd64
>Environment:
        System      : OpenBSD 6.4
        Details     : OpenBSD 6.4-current (GENERIC.MP) #419: Wed Oct 31 18:14:06 MDT 2018
                         [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP

        Architecture: OpenBSD.amd64
        Machine     : amd64
>Description:
        While lightly using my machine; browser + a small number of terminal windows, it suddenly locked up. My screen was still showing my browser tab and terminal windows but they were completely frozen. I tried to switch to a virtual console(alt-ctl-F1, alt-ctl-F2) but pressing the keys combination had no effect. I noticed that although I was able to turn on and off the backlit of my keyboard using the function keys, changing the screen brightness using the function keys had no effect. I
        tried dropping into ddb (ctl-alt-esc) but this had no effect.
>How-To-Repeat:
        Not sure.
>Fix:
        Not sure. Will update to the latest snapshot and will report if this happens again.


dmesg:
OpenBSD 6.4-current (GENERIC.MP) #419: Wed Oct 31 18:14:06 MDT 2018
    [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8238301184 (7856MB)
avail mem = 7979343872 (7609MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xccbfd000 (66 entries)
bios0: vendor LENOVO version "N14ET29W (1.07 )" date 05/08/2015
bios0: LENOVO 20BTS2HN00
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP ASF! HPET ECDT APIC MCFG SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT PCCT SSDT TCPA SSDT UEFI MSDM BATB FPDT UEFI DMAR
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3) EHC1(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpiec0 at acpi0
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.30 MHz, 06-3d-04
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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
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=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz, 06-3d-04
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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz, 06-3d-04
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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz, 06-3d-04
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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 40 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xf8000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 3 (EXP1)
acpiprt3 at acpi0: bus 4 (EXP2)
acpiprt4 at acpi0: bus -1 (EXP3)
acpiprt5 at acpi0: bus -1 (EXP6)
acpicpu0 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1
acpipwrres1 at acpi0: NVP3, resource for PEG_
acpipwrres2 at acpi0: NVP2, resource for PEG_
acpitz0 at acpi0: critical temperature is 128 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
acpicmos0 at acpi0
acpibat0 at acpi0: BAT0 model "00HW003" serial  1941 type LiP oem "SMP"
acpiac0 at acpi0: AC unit offline
acpithinkpad0 at acpi0
tpm0 at acpi0: TPM_ addr 0xfed40000/0x5000: device 0x0000104a rev 0x4e
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT340F" at acpi0 not configured
acpivideo0 at acpi0: VID_
acpivout at acpivideo0 not configured
acpivideo1 at acpi0: VID_
cpu0: Enhanced SpeedStep 798 MHz: speeds: 2201, 2200, 2100, 2000, 1800, 1700, 1600, 1500, 1300, 1200, 1100, 1000, 900, 700, 600, 500 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 5G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 5500" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 2560x1440, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
azalia0 at pci0 dev 3 function 0 "Intel Core 5G HD Audio" rev 0x09: msi
xhci0 at pci0 dev 20 function 0 "Intel 9 Series xHCI" rev 0x03: msi, xHCI 1.0
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
"Intel 9 Series MEI" rev 0x03 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel I218-V" rev 0x03: msi, address 54:ee:75:5c:f2:15
azalia1 at pci0 dev 27 function 0 "Intel 9 Series HD Audio" rev 0x03: msi
azalia1: codecs: Realtek ALC292
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 9 Series PCIE" rev 0xe3: msi
pci1 at ppb0 bus 3
ppb1 at pci0 dev 28 function 1 "Intel 9 Series PCIE" rev 0xe3: msi
pci2 at ppb1 bus 4
iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 7265" rev 0x59, msi
ehci0 at pci0 dev 29 function 0 "Intel 9 Series USB" rev 0x03: apic 2 int 23
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel 9 Series LPC" rev 0x03
ahci0 at pci0 dev 31 function 2 "Intel 9 Series AHCI" rev 0x03: msi, AHCI 1.3
ahci0: port 3: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 3 lun 0: <ATA, SAMSUNG MZNTE256, EXT2> SCSI3 0/direct fixed naa.5002538844584d30
sd0: 244198MB, 512 bytes/sector, 500118192 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 9 Series SMBus" rev 0x03: apic 2 int 18
iic0 at ichiic0
pchtemp0 at pci0 dev 31 function 6 "Intel 9 Series Thermal" rev 0x03
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
wsmouse1 at pms0 mux 0
pms0: Synaptics clickpad, firmware 8.1, 0x1e2b1 0x943300
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
Unclaimed register detected before reading register 0x23a0
uhidev0 at uhub0 port 5 configuration 1 interface 0 "ELAN Touchscreen" rev 2.00/0.13 addr 2
uhidev0: iclass 3/0, 68 report ids
ums0 at uhidev0 reportid 1: 1 button, tip
wsmouse2 at ums0 mux 0
uhid0 at uhidev0 reportid 2: input=64, output=0, feature=0
uhid1 at uhidev0 reportid 3: input=0, output=31, feature=0
uhid2 at uhidev0 reportid 4: input=19, output=0, feature=0
uhid3 at uhidev0 reportid 10: input=0, output=0, feature=1
ums1 at uhidev0 reportid 68
ums1: mouse has no X report
ugen0 at uhub0 port 6 "Validity Sensors VFS5011 Fingerprint Reader" rev 1.10/0.78 addr 3
ugen1 at uhub0 port 7 "Intel Bluetooth" rev 2.01/0.01 addr 4
uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.29 addr 5
video0 at uvideo0
uhub2 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 2.00/0.03 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (012c0624acccd3e1.a) swap on sd0b dump on sd0b
WARNING: / was not properly unmounted
iwm0: hw rev 0x210, fw ver 16.242414.0, address 5c:e0:c5:50:e1:fa

usbdevs:
Controller /dev/usb0:
addr 01: 8086:0000 Intel, xHCI root hub
         super speed, self powered, config 1, rev 1.00
         driver: uhub0
addr 02: 04f3:041a ELAN, Touchscreen
         full speed, self powered, config 1, rev 0.13
         driver: uhidev0
addr 03: 138a:0017 Validity Sensors, VFS5011 Fingerprint Reader
         full speed, power 100 mA, config 1, rev 0.78, iSerialNumber d767598a9cad
         driver: ugen0
addr 04: 8087:0a2a Intel, Bluetooth
         full speed, self powered, config 1, rev 0.01
         driver: ugen1
addr 05: 04f2:b45d Chicony Electronics Co.,Ltd., Integrated Camera
         high speed, power 500 mA, config 1, rev 0.29, iSerialNumber 0x0001
         driver: uvideo0
Controller /dev/usb1:
addr 01: 8086:0000 Intel, EHCI root hub
         high speed, self powered, config 1, rev 1.00
         driver: uhub1
addr 02: 8087:8001 Intel, Rate Matching Hub
         high speed, self powered, config 1, rev 0.03
         driver: uhub2