> Date: Wed, 16 Feb 2022 21:13:03 +0000 > From: Klemens Nanni <[email protected]> > > 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.
Yes, this is expected. The graphics buffers are implented as a uvm object and this object is backed by an anonymous memory uvm_object (aobj). So I think the vmobjlock needs a RW_DUPOK flag. > 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. > >
