From: Hrvoje Popovski <hrvoje@srce.hr>
Subject: vmware virtual machine latest snap only 1 cpu
To: tech@openbsd.org
Date: Sat, 7 Mar 2026 11:48:52 +0100

Hi all,

is there something in snaps that is fiddling with CPU's ?
With latest snaps on vmware virutal machine I have only one CPU, but if
I checkout and compile by hand I've got 8 CPU's?


snap
OpenBSD 7.8-current (GENERIC) #258: Fri Mar  6 12:18:01 MST 2026
    deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
real mem = 8571977728 (8174MB)
avail mem = 8285450240 (7901MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xe0010 (260 entries)
bios0: vendor Phoenix Technologies LTD version "6.00" date 11/12/2020
bios0: VMware, Inc. VMware Virtual Platform
acpi0 at bios0: ACPI 4.0
acpi0: sleep states S0 S1 S4 S5
acpi0: tables DSDT FACP BOOT APIC MCFG SRAT HPET WAET
acpi0: wakeup devices PCI0(S3) USB_(S1) P2P0(S3) PE40(S3) S1F0(S3)
PE50(S3) S1F0(S3) PE60(S3) S1F0(S3) PE70(S3) S1F0(S3) PE41(S3) S1F0(S3)
PE42(S3) PE43(S3) PE44(S3) [...]
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) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.13 MHz, 06-55-04
cpu0: cpuid 1
edx=1f8bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT>
ecx=f7fa3203<SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV>
cpu0: cpuid 6 eax=4<ARAT>
cpu0: cpuid 7.0
ebx=d19f27eb<FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,AVX512F,AVX512DQ,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,AVX512CD,AVX512BW,AVX512VL>
ecx=8<PKU> edx=bc000400<MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD>
cpu0: cpuid a vers=1, gp=4, gpwidth=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=c<RSBA,SKIP_L1DFL>
cpu0: MELTDOWN
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 16-way L2 cache, 22MB 64b/line 11-way L3 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 66MHz
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured




checkout and compiled with latest source

OpenBSD 7.8-current (GENERIC.MP) #2: Sat Mar  7 11:41:28 CET 2026
    hrvoje@obsdlab.netlab:/sys/arch/amd64/compile/GENERIC.MP
real mem = 8571977728 (8174MB)
avail mem = 8285302784 (7901MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xe0010 (260 entries)
bios0: vendor Phoenix Technologies LTD version "6.00" date 11/12/2020
bios0: VMware, Inc. VMware Virtual Platform
acpi0 at bios0: ACPI 4.0
acpi0: sleep states S0 S1 S4 S5
acpi0: tables DSDT FACP BOOT APIC MCFG SRAT HPET WAET
acpi0: wakeup devices PCI0(S3) USB_(S1) P2P0(S3) PE40(S3) S1F0(S3)
PE50(S3) S1F0(S3) PE60(S3) S1F0(S3) PE70(S3) S1F0(S3) PE41(S3) S1F0(S3)
PE42(S3) PE43(S3) PE44(S3) [...]
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) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.11 MHz, 06-55-04
cpu0: cpuid 1
edx=1f8bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT>
ecx=f7fa3203<SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV>
cpu0: cpuid 6 eax=4<ARAT>
cpu0: cpuid 7.0
ebx=d19f27eb<FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,AVX512F,AVX512DQ,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,AVX512CD,AVX512BW,AVX512VL>
ecx=8<PKU> edx=bc000400<MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD>
cpu0: cpuid a vers=1, gp=4, gpwidth=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=c<RSBA,SKIP_L1DFL>
cpu0: MELTDOWN
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 16-way L2 cache, 22MB 64b/line 11-way L3 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 66MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.11 MHz, 06-55-04
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.12 MHz, 06-55-04
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.12 MHz, 06-55-04
cpu3: smt 0, core 3, package 0
cpu4 at mainbus0: apid 4 (application processor)
cpu4: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.12 MHz, 06-55-04
cpu4: smt 0, core 4, package 0
cpu5 at mainbus0: apid 5 (application processor)
cpu5: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.10 MHz, 06-55-04
cpu5: smt 0, core 5, package 0
cpu6 at mainbus0: apid 6 (application processor)
cpu6: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.11 MHz, 06-55-04
cpu6: smt 0, core 6, package 0
cpu7 at mainbus0: apid 7 (application processor)
cpu7: Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz, 2095.13 MHz, 06-55-04
cpu7: smt 0, core 7, package 0