Unmodified -current with WITNESS enabled booting into X on my X230:
wsdisplay0: screen 1-5 added (std, vt100 emulation)
witness: acquiring duplicate lock of same type: "&uobj->vmobjlock"
1st uobjlk
2nd uobjlk
Starting stack trace...
witness_checkorder(fffffd83b625f9b0,9,0) at witness_checkorder+0x8ac
rw_enter(fffffd83b625f9a0,1) at rw_enter+0x68
uvm_obj_wire(fffffd843c39e948,0,40000,ffff800033b70428) at uvm_obj_wire+0x46
shmem_get_pages(ffff800008008500) at shmem_get_pages+0xb8
__i915_gem_object_get_pages(ffff800008008500) at
__i915_gem_object_get_pages+0x6d
i915_gem_fault(ffff800008008500,ffff800033b707c0,10009b000,a43d6b1c000,ffff800033b70740,1,35ba896911df1241,ffff8000000aa078,ffff8000000aa178)
at i915_gem_fault+0x203
drm_fault(ffff800033b707c0,a43d6b1c000,ffff800033b70740,1,0,0,7eca45006f70ee0,ffff800033b707c0)
at drm_fault+0x156
uvm_fault(fffffd843a7cf480,a43d6b1c000,0,2) at uvm_fault+0x179
upageflttrap(ffff800033b70920,a43d6b1c000) at upageflttrap+0x62
usertrap(ffff800033b70920) at usertrap+0x129
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffdc7c0, count: 246
End of stack trace.
The system works fine (unless booted with kern.witness.watch=3), so I'm
posting it here for reference -- haven't had time to look into this.
Looking at bugs@ I see Jan Stary's report from 08.02.22 unrelatedly
containing it in "C2 state not recognized on Thinkpad T420s when on AC".
X230 dmesg follows.
OpenBSD 7.0-current (GENERIC.MP) #0: Wed Feb 16 21:14:45 CET 2022
kn@eru:/home/kn/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17118130176 (16325MB)
avail mem = 16450445312 (15688MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xbff31020 (17 entries)
bios0: vendor coreboot version "CBET4000 x230-seabios" date 01/07/2020
bios0: LENOVO 2325A95
acpi0 at bios0: ACPI 4.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT MCFG TCPA APIC DMAR HPET
acpi0: wakeup devices HDEF(S4) EHC1(S4) EHC2(S4) XHC_(S4) SLPB(S3) LID_(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimcfg0 at acpi0
acpimcfg0: addr 0xf0000000, bus 0-63
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz, 2594.47 MHz, 06-3a-09
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,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=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz, 2594.12 MHz, 06-3a-09
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,MD_CLEAR,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) i5-3320M CPU @ 2.60GHz, 2594.12 MHz, 06-3a-09
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,MD_CLEAR,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) i5-3320M CPU @ 2.60GHz, 2594.11 MHz, 06-3a-09
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,MD_CLEAR,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, 24 pins
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus 2 (RP02)
acpiprt3 at acpi0: bus 3 (RP03)
acpiprt4 at acpi0: bus -1 (RP04)
acpiprt5 at acpi0: bus -1 (RP05)
acpiprt6 at acpi0: bus -1 (RP06)
acpiprt7 at acpi0: bus -1 (RP07)
acpiprt8 at acpi0: bus -1 (RP08)
acpiec0 at acpi0
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
acpiac0 at acpi0: AC unit offline
acpibat0 at acpi0: BAT0 model "45N1175" serial 11496 type LION oem "SANYO"
acpibat1 at acpi0: BAT1 not present
acpibtn0 at acpi0: SLPB
acpibtn1 at acpi0: LID_
acpithinkpad0 at acpi0: version 1.0
acpicmos0 at acpi0
tpm0 at acpi0 TPM_ 1.2 (TIS) addr 0xfed40000/0x5000, device 0x0000104a rev 0x4e
"PNP0C0B" at acpi0 not configured
"BOOT0000" at acpi0 not configured
acpicpu0 at acpi0: C3(200@90 mwait.1@0x30), C2(500@63 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu1 at acpi0: C3(200@90 mwait.1@0x30), C2(500@63 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu2 at acpi0: C3(200@90 mwait.1@0x30), C2(500@63 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu3 at acpi0: C3(200@90 mwait.1@0x30), C2(500@63 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpitz0 at acpi0: critical temperature is 100 degC
acpipwrres0 at acpi0: FPWR, resource for FAN_
acpitz1 at acpi0: critical temperature is 99 degC
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: LCD0
cpu0: using VERW MDS workaround (except on vmm entry)
cpu0: Enhanced SpeedStep 2594 MHz: speeds: 2601, 2600, 2400, 2200, 2000, 1800,
1600, 1400, 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, IVYBRIDGE, gen 7
"Intel Core 3G Thermal" rev 0x09 at pci0 dev 4 function 0 not configured
xhci0 at pci0 dev 20 function 0 "Intel 7 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 7 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address
3c:97:0e:6e:e9:1b
ehci0 at pci0 dev 26 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 19
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
azalia0 at pci0 dev 27 function 0 "Intel 7 Series HD Audio" rev 0x04: msi
azalia0: codecs: Realtek ALC269, Intel/0x2806, using Realtek ALC269
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4
pci1 at ppb0 bus 1
sdhc0 at pci1 dev 0 function 0 "Ricoh 5U822 SD/MMC" rev 0x07: apic 2 int 16
sdhc0: SDHC 3.0, 50 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
ppb1 at pci0 dev 28 function 1 "Intel 7 Series PCIE" rev 0xc4
pci2 at ppb1 bus 2
athn0 at pci2 dev 0 function 0 "Atheros AR9281" rev 0x01: apic 2 int 17
athn0: AR9280 rev 2 (2T2R), ROM rev 22, address 04:f0:21:30:37:de
ppb2 at pci0 dev 28 function 2 "Intel 7 Series PCIE" rev 0xc4: msi
pci3 at ppb2 bus 3
ehci1 at pci0 dev 29 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 18
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00
addr 1
pcib0 at pci0 dev 31 function 0 "Intel QM77 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 7 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, Samsung SSD 850, EMT0> naa.5002538d410a7bce
sd0: 238475MB, 512 bytes/sector, 488397168 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 16
iic0 at ichiic0
iic0: addr 0x24 03=04 09=16 0a=37 0b=20 0c=04 0d=16 0e=02 0f=22 words 00=00ff
01=00ff 02=00ff 03=04ff 04=00ff 05=00ff 06=00ff 07=00ff
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x51: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
"Intel 7 Series Thermal" rev 0x04 at pci0 dev 31 function 6 not configured
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
wsmouse1 at pms0 mux 0
pms0: Synaptics clickpad, firmware 8.1, 0x1e2b1 0x940300 0x194b40 0xd002a3
0x123800
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
uhub3 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev
2.00/0.00 addr 2
uhidev0 at uhub3 port 2 configuration 1 interface 0 "Yubico YubiKey
OTP+FIDO+CCID" rev 2.00/5.24 addr 3
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhidev1 at uhub3 port 2 configuration 1 interface 1 "Yubico YubiKey
OTP+FIDO+CCID" rev 2.00/5.24 addr 3
uhidev1: iclass 3/0
fido0 at uhidev1: input=64, output=64, feature=0
ugen0 at uhub3 port 2 configuration 1 "Yubico YubiKey OTP+FIDO+CCID" rev
2.00/5.24 addr 3
uhub4 at uhub2 port 1 configuration 1 interface 0 "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
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006>
sd1: 238472MB, 512 bytes/sector, 488391473 sectors
root on sd1a (b712848db54bdd1d.a) swap on sd1b dump on sd1b
inteldrm0: 1366x768, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
witness: acquiring duplicate lock of same type: "&uobj->vmobjlock"
1st uobjlk
2nd uobjlk
Starting stack trace...
witness_checkorder(fffffd83b625f9b0,9,0) at witness_checkorder+0x8ac
rw_enter(fffffd83b625f9a0,1) at rw_enter+0x68
uvm_obj_wire(fffffd843c39e948,0,40000,ffff800033b70428) at uvm_obj_wire+0x46
shmem_get_pages(ffff800008008500) at shmem_get_pages+0xb8
__i915_gem_object_get_pages(ffff800008008500) at
__i915_gem_object_get_pages+0x6d
i915_gem_fault(ffff800008008500,ffff800033b707c0,10009b000,a43d6b1c000,ffff800033b70740,1,35ba896911df1241,ffff8000000aa078,ffff8000000aa178)
at i915_gem_fault+0x203
drm_fault(ffff800033b707c0,a43d6b1c000,ffff800033b70740,1,0,0,7eca45006f70ee0,ffff800033b707c0)
at drm_fault+0x156
uvm_fault(fffffd843a7cf480,a43d6b1c000,0,2) at uvm_fault+0x179
upageflttrap(ffff800033b70920,a43d6b1c000) at upageflttrap+0x62
usertrap(ffff800033b70920) at usertrap+0x129
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffdc7c0, count: 246
End of stack trace.
