Hi,

I've started seeing the following error on my laptop along with
associated temporary freezing of the system:
  drm:pid90783:intel_gt_reset *NOTICE* Resetting chip for stopped
  heartbeat on rcs0
  drm:pid90783:mark_guilty *NOTICE* Xorg[83345] context reset due to GPU
  hang
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  i915_vma_coredump_create: stub
  pool_fini: stub
  err_free_sgl: stub


Seems like I started seeing them after upgrade to OpenBSD 6.8. But, I'm
not sure. It could be simply a coincidence.

It could be simply failing hardware. 

Any insight or advice would be greatly appreciated.

Some context follows:

Output of uname -a:

  OpenBSD puffy 6.8 GENERIC.MP#1 amd64


Output of fw_update -i:

  Installed: vmm-firmware-1.11.0p3 inteldrm-firmware-20200421 
uvideo-firmware-1.2p3 intel-firmware-20200616v0


/var/run/dmesg.boot:
  OpenBSD 6.8 (GENERIC.MP) #1: Tue Nov  3 09:06:04 MST 2020
      
r...@syspatch-68-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
  real mem = 8491147264 (8097MB)
  avail mem = 8218771456 (7838MB)
  random: good seed from bootblocks
  mpath0 at root
  scsibus0 at mpath0: 256 targets
  mainbus0 at root
  bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xecb60 (88 entries)
  bios0: vendor Dell Inc. version "A09" date 07/06/2015
  bios0: Dell Inc. Latitude 3340
  acpi0 at bios0: ACPI 5.0
  acpi0: sleep states S0 S3 S4 S5
  acpi0: tables DSDT FACP APIC FPDT ASF! SLIC LPIT SSDT SSDT SSDT SSDT HPET 
SSDT MCFG MSDM
  acpi0: wakeup devices RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) PXSX(S4) RP04(S4) 
PXSX(S4) PXSX(S4) PXSX(S4) PXSX(S4) PXSX(S4) GLAN(S4) EHC1(S0) EHC2(S0) 
XHC_(S0) HDEF(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) Celeron(R) 2957U @ 1.40GHz, 1397.04 MHz, 06-45-01
  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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,XSAVE,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,TSC_ADJUST,ERMS,INVPCID,SRBDS_CTRL,MD_CLEAR,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 2 (application processor)
  cpu1: Intel(R) Celeron(R) 2957U @ 1.40GHz, 1396.78 MHz, 06-45-01
  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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,XSAVE,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,TSC_ADJUST,ERMS,INVPCID,SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
  cpu1: 256KB 64b/line 8-way L2 cache
  cpu1: smt 0, core 1, package 0
  ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 40 pins
  acpihpet0 at acpi0: 14318179 Hz
  acpimcfg0 at acpi0
  acpimcfg0: addr 0xf8000000, bus 0-63
  acpiprt0 at acpi0: bus 0 (PCI0)
  acpiprt1 at acpi0: bus 1 (RP01)
  acpiprt2 at acpi0: bus 2 (RP02)
  acpiprt3 at acpi0: bus 3 (RP04)
  acpiprt4 at acpi0: bus -1 (PEG0)
  acpiprt5 at acpi0: bus -1 (PEG1)
  acpiprt6 at acpi0: bus -1 (PEG2)
  acpiec0 at acpi0
  acpipci0 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
  acpicmos0 at acpi0
  "INT33D7" at acpi0 not configured
  "SMO8810" 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 offline
  acpibat0 at acpi0: BAT0 model "DELL H2F7D53" serial 584 type LION oem "SMP"
  "DELLABCE" at acpi0 not configured
  acpicpu0 at acpi0: C3(200@506 mwait.1@0x60), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
  acpicpu1 at acpi0: C3(200@506 mwait.1@0x60), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
  acpipwrres0 at acpi0: PAUD, resource for HDEF
  acpitz0 at acpi0: critical temperature is 107 degC
  acpivideo0 at acpi0: GFX0
  acpivout0 at acpivideo0: LCD_
  cpu0: using VERW MDS workaround (except on vmm entry)
  cpu0: Enhanced SpeedStep 1397 MHz: speeds: 1400, 1300, 1200, 1100, 1000, 900, 
800 MHz
  pci0 at mainbus0 bus 0
  pchb0 at pci0 dev 0 function 0 "Intel Core 4G Host" rev 0x0b
  inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x0b
  drm0 at inteldrm0
  inteldrm0: msi, HASWELL, gen 7
  azalia0 at pci0 dev 3 function 0 "Intel Core 4G HD Audio" rev 0x0b: msi
  azalia0: No codecs found
  xhci0 at pci0 dev 20 function 0 "Intel 8 Series xHCI" rev 0x04: 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 8 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
  em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x04: msi, address 
20:47:47:1f:ff:2f
  azalia1 at pci0 dev 27 function 0 "Intel 8 Series HD Audio" rev 0x04: msi
  azalia1: codecs: Realtek/0x0255
  audio0 at azalia1
  ppb0 at pci0 dev 28 function 0 "Intel 8 Series PCIE" rev 0xe4
  pci1 at ppb0 bus 1
  ppb1 at pci0 dev 28 function 1 "Intel 8 Series PCIE" rev 0xe4: msi
  pci2 at ppb1 bus 2
  sdhc0 at pci2 dev 0 function 0 vendor "O2 Micro", unknown product 0x8520 rev 
0x01: apic 8 int 17
  sdhc0: SDHC 4.0, 50 MHz base clock
  sdmmc0 at sdhc0: 8-bit, sd high-speed, mmc high-speed, ddr52, dma
  ppb2 at pci0 dev 28 function 3 "Intel 8 Series PCIE" rev 0xe4: msi
  pci3 at ppb2 bus 3
  "Atheros AR9565" rev 0x01 at pci3 dev 0 function 0 not configured
  ehci0 at pci0 dev 29 function 0 "Intel 8 Series USB" rev 0x04: apic 8 int 21
  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 8 Series LPC" rev 0x04
  ahci0 at pci0 dev 31 function 2 "Intel 8 Series AHCI" rev 0x04: msi, AHCI 1.3
  ahci0: port 0: 6.0Gb/s
  scsibus1 at ahci0: 32 targets
  sd0 at scsibus1 targ 0 lun 0: <ATA, ST500LT012-1DG14, 0001> 
naa.5000c50089f43bae
  sd0: 476940MB, 512 bytes/sector, 976773168 sectors
  ichiic0 at pci0 dev 31 function 3 "Intel 8 Series SMBus" rev 0x04: apic 8 int 
18
  iic0 at ichiic0
  iic0: addr 0x29 07=ff 0f=33 10=84 11=93 12=0f 13=51 14=b2 15=31 16=2b 17=1e 
18=1d 19=81 1a=60 1b=63 1c=c0 1e=20 20=7f 22=40 25=40 27=ff 29=05 2b=01 2d=49 
2f=20 30=95 31=25 32=0e 33=16 87=ff 8f=33 90=84 91=93 92=0f 93=51 94=b2 95=31 
96=2b 97=1e 98=1d 99=81 9a=60 9b=63 9c=c0 9e=20 a0=7f a2=40 a5=40 a7=df a9=03 
ab=ff ad=46 af=20 b0=95 b1=25 b2=0e b3=16 words 00=0000 01=0000 02=0000 03=0000 
04=0000 05=0000 06=0000 07=ffff
  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
  pms0 at pckbc0 (aux slot)
  wsmouse0 at pms0 mux 0
  pcppi0 at isa0 port 0x61
  spkr0 at pcppi0
  vmm0 at mainbus0: VMX/EPT
  ugen0 at uhub0 port 4 "Atheros Communications product 0xe005" rev 1.10/0.01 
addr 2
  uhub2 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" 
rev 2.00/0.04 addr 2
  uvideo0 at uhub2 port 6 configuration 1 interface 0 "CN0FHKK77248756GBCBNA00 
Integrated_Webcam_HD" rev 2.00/32.54 addr 3
  video0 at uvideo0
  vscsi0 at root
  scsibus2 at vscsi0: 256 targets
  softraid0 at root
  scsibus3 at softraid0: 256 targets
  root on sd0a (fda071029b3b2f13.a) swap on sd0b dump on sd0b
  inteldrm0: 1366x768, 32bpp
  wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
  wsdisplay0: screen 1-5 added (std, vt100 emulation)



Thank you

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