Hi!
I'm occasionally seeing a crash after system boot. It happens before I'm
able to login into the system, but after the xenocara shows up. Sometimes
I get a ddb prompt, most times I don't.
This is a ThinkPad T490 laptop, running the latest snapshot:
$ cat /var/db/installed.BUILDINFO
Build date: 1792763060 - Fri Oct 23 13:44:20 UTC 2026
but this has been happening for some time, even when using -stable.
Here's the backtrace I got this morning:
(Note: I've used gocr to convert photos to text. I corrected a few
conversion errors, but probably not everything. I can share the photos, of
course.)
uvm fault(0xffffffff82bd8e08, 0xffffd30551100160, 0, 2) -> e
uvm fault(0xffffffff82bd8e08, 0xffffd30551100160, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at bufcache_release+0x149: movq %rsi,0x48(%r8)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
360329 18962 0 0x2 0x4000000 3 ld
377998 18962 0 0x2 0x4000000 1 ld
*264289 18962 0 0x2 0x4000000 2K ld
185346 41082 0 0x14000 0x200 0 srdis
bufcache_release(fffff3054eed0440) at bufcache_release+0x149
breLse(fffff3054eed0440) at brelse+0x89
ffs_read(ffff8001733d2708) at ffs_read+0x1e4
VOP_READ(fffff305bc887b20,fff8001733d2770,0,fffff3067be49f08) at VOP_READ+0x45
uvn_io(fffff305abcb4e80,fff8001733d2858,1,202,0) at uvn_io+0x2c5
uvnget(fffff305abcb4e80,58000,ffff8001733d2918,ffff8001733d2908,0,1,2c3a600da393313,58000)
at uvn_get+0x1ba
uvm_fault_lower_io(ffff8001733d2b08,fff8001733d2b40,ffff8001733d2998,ffff8001733d2988)
at uvm_fault_lower_io+0x200
uvm_fault_lower(ffff8001733d2b08,ffff8001733d2b40,ffff8001733d2a80) at
uvm_fault_lower+0xf4
uvm_fault(fffff305b310c180,2caa45000,0,1) at uvm_fault+0x1c5
upageflttrap(ffff8001733d2c80,2caa45008) at upageflttrap+0x6c
usertrap(ffff8001733d2c80) at usertrap+0x22e
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x2524763b0, count: 3
And here's the dmesg after booting:
OpenBSD 8.0-current (GENERIC.MP) #123: Fri Oct 23 07:33:43 MDT 2026
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 25383043072 (24207MB)
avail mem = 24588738560 (23449MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 3.1 @ 0x6de49000 (69 entries)
bios0: vendor LENOVO version "N2IETA7W (1.85 )" date 04/07/2026
bios0: LENOVO 20N2000FPG
efi0 at bios0: UEFI 2.6
efi0: Lenovo rev 0x1850
acpi0 at bios0: ACPI 6.1
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT SSDT SSDT SSDT UEFI SSDT HPET APIC MCFG ECDT SSDT
SSDT BOOT SLIC SSDT LPIT WSMT SSDT DBGP DBG2 MSDM BATB NHLT DMAR FPDT UEFI
acpi0: wakeup devices GLAN(S4) XHC_(S3) XDCI(S4) HDAS(S4) RP01(S4) PXSX(S4)
RP02(S4) PXSX(S4) RP03(S4) PXSX(S4) RP04(S4) PXSX(S4) RP05(S4) PXSX(S4)
RP06(S4) PXSX(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 23999999 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz, 1375.06 MHz, 06-8e-0c, patch
00000100
cpu0: cpuid 1
edx=bfebfbff<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>
ecx=77fafbbf<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>
cpu0: cpuid 6 eax=27f7<SENSOR,ARAT,PTS> ecx=9<EFFFREQ>
cpu0: cpuid 7.0
ebx=29c67af<FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT>
edx=bc000600<SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD>
cpu0: cpuid a vers=4, gp=8, gpwidth=48, ff=3, ffwidth=48
cpu0: cpuid d.1 eax=f<XSAVEOPT,XSAVEC,XGETBV1,XSAVES>
cpu0: cpuid 80000001 edx=2c100800<NXE,PAGE1GB,RDTSCP,LONG>
ecx=121<LAHF,ABM,3DNOWP>
cpu0: cpuid 80000007 edx=100<ITSC>
cpu0: msr
10a=a0a0c2b<IBRS_ALL,SKIP_L1DFL,MDS_NO,MISC_PKG_CT,ENERGY_FILT,FB_CLEAR,RRSBA,GDS_CTRL,RFDS_NO>
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 256KB 64b/line
4-way L2 cache, 6MB 64b/line 12-way L3 cache
cpu0: smt 0, core 0, package 0, type P
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 24MHz
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) i5-8265U CPU @ 1.60GHz, 1155.25 MHz, 06-8e-0c, patch
00000100
cpu1: smt 0, core 1, package 0, type P
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz, 1002.55 MHz, 06-8e-0c, patch
00000100
cpu2: smt 0, core 2, package 0, type P
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz, 900.01 MHz, 06-8e-0c, patch
00000100
cpu3: smt 0, core 3, package 0, type P
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpiec0 at acpi0
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus -1 (RP02)
acpiprt3 at acpi0: bus -1 (RP03)
acpiprt4 at acpi0: bus -1 (RP04)
acpiprt5 at acpi0: bus 2 (RP05)
acpiprt6 at acpi0: bus -1 (RP06)
acpiprt7 at acpi0: bus -1 (RP07)
acpiprt8 at acpi0: bus -1 (RP08)
acpiprt9 at acpi0: bus 60 (RP09)
acpiprt10 at acpi0: bus -1 (RP10)
acpiprt11 at acpi0: bus -1 (RP11)
acpiprt12 at acpi0: bus -1 (RP12)
acpiprt13 at acpi0: bus 61 (RP13)
acpiprt14 at acpi0: bus -1 (RP14)
acpiprt15 at acpi0: bus -1 (RP15)
acpiprt16 at acpi0: bus -1 (RP16)
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)
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
acpithinkpad0 at acpi0: version 2.0
acpiac0 at acpi0: AC unit offline
acpibat0 at acpi0: BAT0 model "02DL008" serial 2126 type LiP oem "SMP"
"LEN0100" at acpi0 not configured
"INT3403" at acpi0 not configured
"INT3403" at acpi0 not configured
acpicmos0 at acpi0
"LEN0071" at acpi0 not configured
"LEN205B" at acpi0 not configured
pchgpio0 at acpi0 GPI0 addr 0xfd6e0000/0x10000 0xfd6d0000/0x10000
0xfd6a0000/0x10000 irq 14, 320 pins
"PNP0C14" at acpi0 not configured
"INT0E0C" at acpi0 not configured
acpibtn0 at acpi0: SLPB(wakeup)
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpibtn1 at acpi0: LID_(wakeup)
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT3400" at acpi0 not configured
"USBC000" at acpi0 not configured
acpipwrres0 at acpi0: PUBS, resource for XHC_
acpipwrres1 at acpi0: USBC, resource for XDCI
acpipwrres2 at acpi0: PXP_, resource for RP05
acpipwrres3 at acpi0: V0PR
acpipwrres4 at acpi0: V1PR
acpipwrres5 at acpi0: V2PR
acpipwrres6 at acpi0: WRST
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
acpitz0 at acpi0
acpitz0: critical temperature is 128 degC
acpipwrres7 at acpi0: PIN_
acpipwrres8 at acpi0: PINP
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD1F
cpu0: Enhanced SpeedStep 1375 MHz: speeds: 1801, 1800, 1700, 1600, 1500, 1400,
1300, 1200, 1100, 1000, 900, 800, 700, 600, 500, 400 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 8G Host" rev 0x0c
inteldrm0 at pci0 dev 2 function 0 "Intel UHD Graphics 620" rev 0x02
drm0 at inteldrm0
inteldrm0: msi, COFFEELAKE, gen 9
"Intel Core 6G Thermal" rev 0x0c at pci0 dev 4 function 0 not configured
"Intel Core GMM" rev 0x00 at pci0 dev 8 function 0 not configured
pchtemp0 at pci0 dev 18 function 0 "Intel 300 Series Thermal" rev 0x30
xhci0 at pci0 dev 20 function 0 "Intel 300 Series xHCI" rev 0x30: msi, xHCI 1.10
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 300 Series Shared SRAM" rev 0x30 at pci0 dev 20 function 2 not configured
iwm0 at pci0 dev 20 function 3 "Intel AC 9560" rev 0x30, msix
dwiic0 at pci0 dev 21 function 0 "Intel 300 Series I2C" rev 0x30: apic 2 int 16
iic0 at dwiic0
"Intel 300 Series MEI" rev 0x30 at pci0 dev 22 function 0 not configured
ppb0 at pci0 dev 28 function 0 "Intel 300 Series PCIE" rev 0xf0: msi
pci1 at ppb0 bus 1
sdhc0 at pci1 dev 0 function 0 vendor "Genesys Logic", unknown product 0x9750
rev 0x01: msi
sdhc0: SDHC 4.20, 50 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, ddr52, dma
ppb1 at pci0 dev 28 function 4 "Intel 300 Series PCIE" rev 0xf0: msi
pci2 at ppb1 bus 2
ppb2 at pci2 dev 0 function 0 "Intel JHL6240 Thunderbolt 3" rev 0x01
pci3 at ppb2 bus 3
ppb3 at pci3 dev 0 function 0 "Intel JHL6240 Thunderbolt 3" rev 0x01: msi
pci4 at ppb3 bus 4
"Intel JHL6240 Thunderbolt 3" rev 0x01 at pci4 dev 0 function 0 not configured
ppb4 at pci3 dev 1 function 0 "Intel JHL6240 Thunderbolt 3" rev 0x01: msi
pci5 at ppb4 bus 5
ppb5 at pci3 dev 2 function 0 "Intel JHL6240 Thunderbolt 3" rev 0x01: msi
pci6 at ppb5 bus 58
xhci1 at pci6 dev 0 function 0 "Intel JHL6240 Thunderbolt 3" rev 0x01: msi,
xHCI 1.10
usb1 at xhci1: USB revision 3.0
uhub1 at usb1 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00
addr 1
ppb6 at pci0 dev 29 function 0 "Intel 300 Series PCIE" rev 0xf0: msi
pci7 at ppb6 bus 60
ppb7 at pci0 dev 29 function 4 "Intel 300 Series PCIE" rev 0xf0: msi
pci8 at ppb7 bus 61
nvme0 at pci8 dev 0 function 0 vendor "Kioxia", unknown product 0x0009 rev
0x01: msix, NVMe 1.3
nvme0: KIOXIA-EXCERIA G2 SSD, firmware ECFA17.1, serial Y3OB808SK70S
scsibus1 at nvme0: 2 targets, initiator 0
sd0 at scsibus1 targ 1 lun 0: <NVMe, KIOXIA-EXCERIA G, ECFA>
sd0: 476940MB, 512 bytes/sector, 976773168 sectors
pcib0 at pci0 dev 31 function 0 "Intel 300 Series LPC" rev 0x30
azalia0 at pci0 dev 31 function 3 "Intel 300 Series HD Audio" rev 0x30: msi
azalia0: codecs: Realtek ALC257, Intel/0x280b, using Realtek ALC257
audio0 at azalia0
ichiic0 at pci0 dev 31 function 4 "Intel 300 Series SMBus" rev 0x30: apic 2 int
16
iic1 at ichiic0
"Intel 300 Series SPI" rev 0x30 at pci0 dev 31 function 5 not configured
em0 at pci0 dev 31 function 6 "Intel I219-V" rev 0x30: msi, address
98:fa:9b:74:ff:50
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 10.32, 0x1e2a1 0x940300 0x378f40 0xf00aa3
0x12e800
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
iwm0: restrict all mbufs to low memory
ugen0 at uhub0 port 1 "Generic EMV Smartcard Reader" rev 2.01/1.20 addr 2
uhidev0 at uhub0 port 3 configuration 1 interface 0 "PixArt Dell MS116 USB
Optical Mouse" rev 2.00/1.00 addr 3
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse2 at ums0 mux 0
uhidev1 at uhub0 port 4 configuration 1 interface 0 "Microsoft Microsoft\M-.
2.4GHz Transceiver v9.0" rev 2.00/7.97 addr 4
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhidev2 at uhub0 port 4 configuration 1 interface 1 "Microsoft Microsoft\M-.
2.4GHz Transceiver v9.0" rev 2.00/7.97 addr 4
uhidev2: iclass 3/1, 31 report ids
uhid0 at uhidev2 reportid 18: input=0, output=0, feature=1
uhid1 at uhidev2 reportid 23: input=0, output=0, feature=1
ums1 at uhidev2 reportid 26: 5 buttons, Z and W dir
wsmouse3 at ums1 mux 0
ucc0 at uhidev2 reportid 31: 1 usage, 0 keys, enum
uhidev3 at uhub0 port 4 configuration 1 interface 2 "Microsoft Microsoft\M-.
2.4GHz Transceiver v9.0" rev 2.00/7.97 addr 4
uhidev3: iclass 3/0, 40 report ids
uhid2 at uhidev3 reportid 3: input=1, output=0, feature=0
ucc1 at uhidev3 reportid 7: 1024 usages, 20 keys, array
wskbd2 at ucc1 mux 1
uhid3 at uhidev3 reportid 32: input=0, output=0, feature=18
uhid4 at uhidev3 reportid 33: input=2, output=0, feature=0
uhid5 at uhidev3 reportid 34: input=0, output=0, feature=26
uhid6 at uhidev3 reportid 35: input=0, output=0, feature=26
uhid7 at uhidev3 reportid 36: input=0, output=0, feature=31
uhid8 at uhidev3 reportid 37: input=0, output=0, feature=31
uhid9 at uhidev3 reportid 38: input=0, output=0, feature=31
uhid10 at uhidev3 reportid 39: input=31, output=0, feature=0
uhid11 at uhidev3 reportid 40: input=0, output=0, feature=3
uhidev4 at uhub0 port 6 configuration 1 interface 0 "ELAN Touchscreen" rev
2.00/57.13 addr 5
uhidev4: iclass 3/0, 68 report ids
ums2 at uhidev4 reportid 1: 1 button, tip
wsmouse4 at ums2 mux 0
uhid12 at uhidev4 reportid 2: input=64, output=0, feature=0
uhid13 at uhidev4 reportid 3: input=0, output=63, feature=0
uhid14 at uhidev4 reportid 4: input=19, output=0, feature=0
uhid15 at uhidev4 reportid 10: input=0, output=0, feature=1
ums3 at uhidev4 reportid 68: 0 buttons
wsmouse5 at ums3 mux 0
uvideo0 at uhub0 port 8 configuration 1 interface 0 "SunplusIT Inc Integrated
Camera" rev 2.01/54.22 addr 6
video0 at uvideo0
ugen1 at uhub0 port 9 "Synaptics Fingerprint Reader" rev 2.00/0.00 addr 7
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
softraid0: sd1 was not shutdown properly
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006>
sd1: 476679MB, 512 bytes/sector, 976240063 sectors
root on sd1a (9978dddba972bb2a.a) swap on sd1b dump on sd1b
WARNING: / was not properly unmounted
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wskbd2: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
iwm0: hw rev 0x310, fw ver 46.7e3e4b69.0, address d0:ab:d5:97:50:0e
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: 058f:9540 Generic, EMV Smartcard Reader
full speed, power 50 mA, config 1, rev 1.20
driver: ugen0
addr 03: 413c:301a PixArt, Dell MS116 USB Optical Mouse
low speed, power 100 mA, config 1, rev 1.00
driver: uhidev0
addr 04: 045e:07a5 Microsoft, Microsoft\M-. 2.4GHz Transceiver v9.0
full speed, power 100 mA, config 1, rev 7.97
driver: uhidev1
driver: uhidev2
driver: uhidev3
addr 05: 04f3:289b ELAN, Touchscreen
full speed, self powered, config 1, rev 57.13
driver: uhidev4
addr 06: 5986:2113 SunplusIT Inc, Integrated Camera
high speed, power 500 mA, config 1, rev 54.22
driver: uvideo0
addr 07: 06cb:00bd Synaptics, Fingerprint Reader
full speed, power 100 mA, config 1, rev 0.00, iSerial 38281cb68025
driver: ugen1
addr 08: 0ea0:2168 USB, Flash Disk
high speed, power 200 mA, config 1, rev 2.00, iSerial 233A104175FBDEFD
driver: umass0
Controller /dev/usb1:
addr 01: 8086:0000 Intel, xHCI root hub
super speed, self powered, config 1, rev 1.00
driver: uhub1
