Adding freebsd-current, because that's a good idea. I see these lines in the beginning of dmesg: MADT: Ignoring local APIC ID 256 (too high) [907/911] MADT: Ignoring local APIC ID 260 (too high) [906/911] MADT: Ignoring local APIC ID 264 (too high) [905/911] MADT: Ignoring local APIC ID 268 (too high) [904/911] MADT: Ignoring local APIC ID 272 (too high) [903/911] MADT: Ignoring local APIC ID 276 (too high) [902/911] MADT: Ignoring local APIC ID 280 (too high) [901/911] MADT: Ignoring local APIC ID 272 (too high) [903/911] MADT: Ignoring local APIC ID 276 (too high) [902/911] MADT: Ignoring local APIC ID 280 (too high) [901/911] MADT: Ignoring local APIC ID 276 (too high) [902/911] MADT: Ignoring local APIC ID 280 (too high) MADT: Ignoring local APIC ID 284 (too high) MADT: Ignoring local APIC ID 288 (too high) MADT: Ignoring local APIC ID 292 (too high) MADT: Ignoring local APIC ID 296 (too high) MADT: Ignoring local APIC ID 300 (too high) MADT: Ignoring local APIC ID 257 (too high) MADT: Ignoring local APIC ID 261 (too high) MADT: Ignoring local APIC ID 265 (too high) MADT: Ignoring local APIC ID 269 (too high) MADT: Ignoring local APIC ID 273 (too high) MADT: Ignoring local APIC ID 277 (too high) MADT: Ignoring local APIC ID 281 (too high) MADT: Ignoring local APIC ID 285 (too high) MADT: Ignoring local APIC ID 289 (too high) MADT: Ignoring local APIC ID 293 (too high) MADT: Ignoring local APIC ID 297 (too high) MADT: Ignoring local APIC ID 301 (too high) MADT: Ignoring local APIC ID 258 (too high) MADT: Ignoring local APIC ID 262 (too high) MADT: Ignoring local APIC ID 266 (too high) MADT: Ignoring local APIC ID 270 (too high) MADT: Ignoring local APIC ID 274 (too high) MADT: Ignoring local APIC ID 278 (too high) MADT: Ignoring local APIC ID 282 (too high) MADT: Ignoring local APIC ID 286 (too high) MADT: Ignoring local APIC ID 290 (too high) MADT: Ignoring local APIC ID 294 (too high) MADT: Ignoring local APIC ID 298 (too high) MADT: Ignoring local APIC ID 302 (too high) MADT: Ignoring local APIC ID 255 (too high) MADT: Ignoring local APIC ID 259 (too high) MADT: Ignoring local APIC ID 263 (too high) MADT: Ignoring local APIC ID 267 (too high) MADT: Ignoring local APIC ID 271 (too high) MADT: Ignoring local APIC ID 275 (too high) MADT: Ignoring local APIC ID 279 (too high) MADT: Ignoring local APIC ID 283 (too high) MADT: Ignoring local APIC ID 287 (too high) MADT: Ignoring local APIC ID 291 (too high) MADT: Ignoring local APIC ID 295 (too high) MADT: Ignoring local APIC ID 299 (too high) MADT: Ignoring local APIC ID 303 (too high) Copyright (c) 1992-2016 The FreeBSD Project. 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FreeBSD 11.0-RELEASE-p1 #0 r306420: Thu Sep 29 01:43:23 UTC 2016 root_at_releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 FreeBSD clang version 3.8.0 (tags/RELEASE_380/final 262564) (based on LLVM 3.8.0) SRAT: No CPU found for memory domain 1 VT(efifb): resolution 800x600 CPU: Intel(R) Xeon Phi(TM) CPU 7250 _at_ 1.40GHz (1396.80-MHz K8-class CPU) Origin="GenuineIntel" Id=0x50671 Family=0x6 Model=0x57 Stepping=1 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x7ff8f39f<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,EST,TM2,SSSE3,FMA,CX16,xTPR,PDCM,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=0x121<LAHF,ABM,Prefetch> Structured Extended Features=0x1c0d23ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,NFPUSG,AVX512F,RDSEED,ADX,AVX512PF,AVX512ER,AVX512CD> Structured Extended Features2=0x1<PREFETCHWT1> XSAVE Features=0x1<XSAVEOPT> TSC: P-state invariant, performance statistics real memory = 223332007936 (212986 MB) avail memory = 216976429056 (206924 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: <INTEL S7200AP> FreeBSD/SMP: Multiprocessor System Detected: 223 CPUs FreeBSD/SMP: Non-uniform topology It sounds like those MADT errors point to the problem? - Eric On Tue, Jan 3, 2017 at 11:41 PM Shane Ambler <FreeBSD_at_shaneware.biz> wrote: > On 04/01/2017 08:08, Eric Joyner wrote: > > I have an 11.0-RELEASE-p1 system with: > > > > hw.model: Intel(R) Xeon Phi(TM) CPU 7250 _at_ 1.40GHz > > > > It's got 68 cores, but with 4-way SMT, I think it should show up with 272 > > logical cores on FreeBSD. > > > > However, in both kern.sched.topology_spec and hw.ncpu, it shows there are > > only 223 cores. > > > > Is the limit effectively 223 cores, even though I see some #define MAXCPU > > 256 lines in the source? > > You will probably find freebsd-current a better mailing list for this. > > How many show in dmesg? > > From https://svnweb.freebsd.org/base?view=revision&revision=270223 > Bump MAXCPU on amd64 from 64 to 256. In practice APIC only permits 255 > CPUs (IDs 0 through 254). Getting above that limit requires x2APIC. > > Also note that changing MAXCPU breaks ABI compatability so you will > need to recompile. > https://svnweb.freebsd.org/base?view=revision&revision=284720 > > -- > FreeBSD - the place to B...Software Developing > > Shane Ambler > >Received on Wed Jan 04 2017 - 17:53:36 UTC
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