I have just installed 6.9-stable/amd64 on a new-to-me (used) Lenovo Thinkpad T580 (dmesg below). This was a from-scratch install on a new-from-the-factory SSD (via booting the 6.9/amd64 bsd.rd from a usb stick).
During the installation (both in the bsd.rd install script and previously when I dropped into the bsd.rd shell to set up softraid-crypto) the machine acted incredibly slow, and there was a several-second delay in echoing typed characters. I suspected that it was some device producing spurious interrupts, and just let the install run overnight until it finally finished. After the install (booting into normal multiuser operation) the machine seemed to work fine at first. Notably, X "just works", screen brightness adjust with Fn-F5/Fn-F6 "just works", iwm wifi "just works", and suspend-to-RAM with Fn/Backspace "just works". *BUT*, intermittently (maybe 25% of the time?) after a power-cycle and reboot, there is what appears to be a system process 'acpi0' infinite-looping (taking 100% of one CPU core, with 'top' showing ~80% system time for that processor). Here's a cut-n-paste of the beginning of 'top -S -i -s1' output in that state, showing the runaway process: load averages: 1.02, 1.10, 0.86 gold.bkis-orchard.net 00:41:44 134 processes: 130 idle, 4 on processor up 0:19 CPU0: 0.0% user, 0.0% nice, 80.2% sys, 1.0% spin, 17.8% intr, 1.0% idle CPU1: 0.0% user, 0.0% nice, 0.0% sys, 1.0% spin, 0.0% intr, 99.0% idle CPU2: 0.0% user, 0.0% nice, 1.0% sys, 2.0% spin, 0.0% intr, 97.0% idle CPU3: 0.0% user, 0.0% nice, 1.0% sys, 2.0% spin, 0.0% intr, 97.0% idle Memory: Real: 341M/1548M act/tot Free: 14G Cache: 665M Swap: 0K/34G PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND 67563 root 10 0 0K 19M sleep/0 acpi0 14:48 77.73% acpi0 59020 _x11 2 0 36M 59M sleep/1 poll 0:48 5.47% Xorg 48374 root 2 0 8952K 15M sleep/2 select 0:09 0.73% perl Specifying an additional '-H' option to 'top' ("show process threads") didn't change the output significantly. FWIW, I have apmd running # cat /etc/rc.conf.local apmd_flags='-A -t 60' vmd_flags='' xenodm_flags='' # apmd appears to be adjusting the CPU clock rate correctly, both now and on those cold-boots where the infinite-loop problem does not occur. As I noted above, suspend-to-RAM (via Fn-Backspace, which is the key combination marked with the usual Thinkpad "moon" icon) "just works". Is this sort of acpi (?) runaway a known T580 problem? Neither google nor the nycbug.org dmesg archive show any OpenBSD T580 dmesg, but I do see occasional web posts mentioning OpenBSD on a T580. Below I give my dmesg (from the current boot, the one that produced the above runaway process). What other information would be useful to try to diagnose the problem? Thanks, -- -- "Jonathan Thornburg [remove color- to reply]" <jthorn4...@pink-gmail.com> on the west coast of Canada, eh? --- begin dmesg --- OpenBSD 6.9 (GENERIC.MP) #4: Tue Aug 10 08:12:23 MDT 2021 r...@syspatch-69-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 16755720192 (15979MB) avail mem = 16232525824 (15480MB) random: good seed from bootblocks mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xa86db000 (62 entries) bios0: vendor LENOVO version "N27ET43W (1.29 )" date 08/13/2021 bios0: LENOVO 20L9001GUS acpi0 at bios0: ACPI 5.0 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP SSDT SSDT TPM2 UEFI SSDT SSDT HPET APIC MCFG ECDT SSDT SSDT BOOT BATB SLIC SSDT SSDT SSDT LPIT WSMT SSDT SSDT SSDT DBGP DBG2 MSDM DMAR ASF! FPDT UEFI acpi0: wakeup devices GLAN(S4) XHC_(S3) XDCI(S4) HDAS(S4) RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) PXSX(S4) RP04(S4) PXSX(S4) RP05(S4) PXSX(S4) RP06(S4) PXSX(S4) RP07(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) i7-8650U CPU @ 1.90GHz, 1794.33 MHz, 06-8e-0a 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,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,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,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 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) i7-8650U CPU @ 1.90GHz, 1794.19 MHz, 06-8e-0a 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,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,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 0, core 1, package 0 cpu2 at mainbus0: apid 4 (application processor) cpu2: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz, 1795.82 MHz, 06-8e-0a 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,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,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN cpu2: 256KB 64b/line 8-way L2 cache cpu2: smt 0, core 2, package 0 cpu3 at mainbus0: apid 6 (application processor) cpu3: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz, 1795.82 MHz, 06-8e-0a 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,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,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN cpu3: 256KB 64b/line 8-way L2 cache cpu3: smt 0, core 3, package 0 ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins acpimcfg0 at acpi0 acpimcfg0: addr 0xf0000000, bus 0-127 acpiec0 at acpi0 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 2 (RP01) acpiprt2 at acpi0: bus -1 (RP02) acpiprt3 at acpi0: bus -1 (RP03) acpiprt4 at acpi0: bus -1 (RP04) acpiprt5 at acpi0: bus -1 (RP05) acpiprt6 at acpi0: bus -1 (RP06) acpiprt7 at acpi0: bus 4 (RP07) acpiprt8 at acpi0: bus -1 (RP08) acpiprt9 at acpi0: bus 7 (RP09) acpiprt10 at acpi0: bus -1 (RP10) acpiprt11 at acpi0: bus 64 (RP11) acpiprt12 at acpi0: bus -1 (RP12) acpiprt13 at acpi0: bus -1 (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 online acpibat0 at acpi0: BAT0 model "00UR891" serial 10036 type LiP oem "SMP" acpibat1 at acpi0: BAT1 model "01AV490" serial 113 type LiP oem "LGC" "LEN0100" at acpi0 not configured "INT3403" at acpi0 not configured "INT3403" at acpi0 not configured "INT3403" at acpi0 not configured "INT3403" at acpi0 not configured "INT3403" at acpi0 not configured "INT3403" at acpi0 not configured "INT3403" at acpi0 not configured acpicmos0 at acpi0 acpibtn0 at acpi0: SLPB "PNP0C14" at acpi0 not configured "INT33A1" at acpi0 not configured acpibtn1 at acpi0: LID_ "PNP0C14" at acpi0 not configured "PNP0C14" at acpi0 not configured "PNP0C14" at acpi0 not configured "INT3400" at acpi0 not configured "STM7304" at acpi0 not configured "USBC000" at acpi0 not configured 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 acpipwrres0 at acpi0: PUBS, resource for XHC_ acpipwrres1 at acpi0: PXP_, resource for RP09 acpitz0 at acpi0: critical temperature is 98 degC acpivideo0 at acpi0: GFX0 acpivout0 at acpivideo0: DD1F cpu0: using VERW MDS workaround (except on vmm entry) cpu0: Enhanced SpeedStep 1794 MHz: speeds: 2101, 2100, 1900, 1800, 1700, 1600, 1500, 1400, 1200, 1100, 1000, 800, 700, 600, 500, 400 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Core 8G Host" rev 0x08 inteldrm0 at pci0 dev 2 function 0 "Intel UHD Graphics 620" rev 0x07 drm0 at inteldrm0 inteldrm0: msi, KABYLAKE, gen 9 "Intel Core 6G Thermal" rev 0x08 at pci0 dev 4 function 0 not configured "Intel Core GMM" rev 0x00 at pci0 dev 8 function 0 not configured xhci0 at pci0 dev 20 function 0 "Intel 100 Series xHCI" rev 0x21: 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 pchtemp0 at pci0 dev 20 function 2 "Intel 100 Series Thermal" rev 0x21 "Intel 100 Series MEI" rev 0x21 at pci0 dev 22 function 0 not configured ppb0 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1: msi pci1 at ppb0 bus 2 ppb1 at pci0 dev 28 function 6 "Intel 100 Series PCIE" rev 0xf1: msi pci2 at ppb1 bus 4 iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless-AC 8265" rev 0x78, msi ppb2 at pci0 dev 29 function 0 "Intel 100 Series PCIE" rev 0xf1: msi pci3 at ppb2 bus 7 ppb3 at pci3 dev 0 function 0 vendor "Intel", unknown product 0x15c0 rev 0x01 pci4 at ppb3 bus 8 ppb4 at pci4 dev 0 function 0 vendor "Intel", unknown product 0x15c0 rev 0x01: msi pci5 at ppb4 bus 9 vendor "Intel", unknown product 0x15bf (class system subclass miscellaneous, rev 0x01) at pci5 dev 0 function 0 not configured ppb5 at pci4 dev 1 function 0 vendor "Intel", unknown product 0x15c0 rev 0x01: msi pci6 at ppb5 bus 10 ppb6 at pci4 dev 2 function 0 vendor "Intel", unknown product 0x15c0 rev 0x01: msi pci7 at ppb6 bus 63 xhci1 at pci7 dev 0 function 0 vendor "Intel", unknown product 0x15c1 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 ppb7 at pci0 dev 29 function 2 "Intel 100 Series PCIE" rev 0xf1: msi pci8 at ppb7 bus 64 nvme0 at pci8 dev 0 function 0 "Samsung SM981/PM981 NVMe" rev 0x00: msix, NVMe 1.3 nvme0: Samsung SSD 970 PRO 1TB, firmware 1B2QEXP7, serial S5JXNJ0R303823Y scsibus1 at nvme0: 2 targets, initiator 0 sd0 at scsibus1 targ 1 lun 0: <NVMe, Samsung SSD 970, 1B2Q> sd0: 976762MB, 512 bytes/sector, 2000409264 sectors pcib0 at pci0 dev 31 function 0 "Intel 200 Series LPC" rev 0x21 "Intel 100 Series PMC" rev 0x21 at pci0 dev 31 function 2 not configured azalia0 at pci0 dev 31 function 3 "Intel 200 Series HD Audio" rev 0x21: msi azalia0: codecs: Realtek ALC257, Intel/0x280b, using Realtek ALC257 audio0 at azalia0 ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x21: apic 2 int 16 iic0 at ichiic0 em0 at pci0 dev 31 function 6 "Intel I219-LM" rev 0x21: msi, address 48:2a:e3:1b:f6:6b 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 8.16, 0x1e2b1 0x940300 0x33cc40 0xf01fa3 0x12e800 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 vmm0 at mainbus0: VMX/EPT uvideo0 at uhub0 port 8 configuration 1 interface 0 "Azurewave Integrated Camera" rev 2.01/17.11 addr 2 video0 at uvideo0 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: 40962MB, 512 bytes/sector, 83890774 sectors root on sd1a (482bf946eee76535.a) swap on sd1b dump on sd1b inteldrm0: 1920x1080, 32bpp wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0 wsdisplay0: screen 1-5 added (std, vt100 emulation) iwm0: hw rev 0x230, fw ver 34.0.1, address 18:56:80:24:28:40 --- end dmesg ---