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Date:      Wed, 27 Mar 2024 17:29:47 +0100
From:      Bernd Walter <freebsd-current@cicely.de>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        ticso@cicely.de, freebsd-current@freebsd.org, freebsd-hackers@freebsd.org, Bernd Walter <ticso@cicely7.cicely.de>
Subject:   Re: Only 1TB RAM out of 1.5TB on amd64
Message-ID:  <ZgRJe39FdYKucCkT@cicely7.cicely.de>
In-Reply-To: <ZgRBaBVv-ofIbJ2-@kib.kiev.ua>
References:  <Zf3TzpVwxirlUE2n@cicely7.cicely.de> <ZgN953BglkzYkNFG@cicely7.cicely.de> <ZgRBaBVv-ofIbJ2-@kib.kiev.ua>

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On Wed, Mar 27, 2024 at 05:55:20PM +0200, Konstantin Belousov wrote:
> On Wed, Mar 27, 2024 at 03:01:11AM +0100, Bernd Walter wrote:
> > Same Problem with current:
> > reeBSD 15.0-CURRENT #0 main-n268793-220ee18f1964: Thu Mar 14 02:58:39 UTC 2024
> >  
> > real memory  = 1649265344512 (1572862 MB)
> > avail memory = 1057118396416 (1008146 MB)
> Real memory is really the max physical address of the valid byte.
> If you have holes in the phys map, real memory should reflect these
> holes.  Avail memory is the total memory as reported by EFI map.

Damn - thank you very much.
That was the answer.
I was under the impression that the machine has 1.5T installed, but in
fact it has only 1T installed.
I was expecting holes because of NUMA, but my assumption was more that
the holes would led to memory being outside of the direct map space.

> 
> Verify all that by looking at sysctl machdep.efi_map output.
> > 
> > On Fri, Mar 22, 2024 at 07:54:06PM +0100, Bernd Walter wrote:
> > > ..
> > > real memory  = 1649265344512 (1572862 MB)
> > > avail memory = 1057138888704 (1008166 MB)
> > > ..
> > > 
> > > I suspect address space issues, but don't know for sure.
> > > Changing NUMA nodes per socket in the BIOS had an influence to make it
> > > worse, but not better.
> > > 
> > > 
> > > Copyright (c) 1992-2021 The FreeBSD Project.
> > > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> > >         The Regents of the University of California. All rights reserved.
> > > FreeBSD is a registered trademark of The FreeBSD Foundation.
> > > FreeBSD 13.3-RELEASE releng/13.3-n257428-80d2b634ddf0 GENERIC amd64
> > > FreeBSD clang version 17.0.6 (https://github.com/llvm/llvm-project.git llvmorg-17.0.6-0-g6009708b4367)
> > > VT(efifb): resolution 1024x768
> > > CPU: AMD EPYC 7352 24-Core Processor                 (2300.07-MHz K8-class CPU)
> > >   Origin="AuthenticAMD"  Id=0x830f10  Family=0x17  Model=0x31  Stepping=0
> > >   Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
> > >   Features2=0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
> > >   AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
> > >   AMD Features2=0x75c237ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX,ADMSKX>
> > >   Structured Extended Features=0x219c91a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,PQM,PQE,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA>
> > >   Structured Extended Features2=0x400004<UMIP,RDPID>
> > >   XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
> > >   AMD Extended Feature Extensions ID EBX=0x18cf757<CLZERO,IRPerf,XSaveErPtr,RDPRU,MCOMMIT,WBNOINVD,IBPB,IBRS,STIBP,PREFER_IBRS,PPIN,SSBD>
> > >   SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=32768
> > >   TSC: P-state invariant, performance statistics
> > > real memory  = 1649265344512 (1572862 MB)
> > > avail memory = 1057138888704 (1008166 MB)
> > > Event timer "LAPIC" quality 600
> > > ACPI APIC Table: <SUPERM SMCI--MB>
> > > FreeBSD/SMP: Multiprocessor System Detected: 96 CPUs
> > > FreeBSD/SMP: 2 package(s) x 8 cache groups x 3 core(s) x 2 hardware threads
> > > random: registering fast source Intel Secure Key RNG
> > > random: fast provider: "Intel Secure Key RNG"
> > > random: unblocking device.
> > > ioapic0 <Version 2.1> irqs 0-23
> > > ioapic1 <Version 2.1> irqs 24-55
> > > ioapic2 <Version 2.1> irqs 56-87
> > > ioapic3 <Version 2.1> irqs 88-119
> > > ioapic4 <Version 2.1> irqs 120-151
> > > ioapic5 <Version 2.1> irqs 152-183
> > > ioapic6 <Version 2.1> irqs 184-215
> > > ioapic7 <Version 2.1> irqs 216-247
> > > ioapic8 <Version 2.1> irqs 248-279
> > > Launching APs: 32 30 34 13 14 16 23 21 19 24 28 9 86 10 87 7 26 37 39 41 45 46 43 66 71 69 54 57 59 80 82 78 49 53 51 60 65 62 84 88 91 95 74 73 76 92 33 40 11 2 27 22 20 5 44 18 15 36 6 8 25 89 79 85 93 56 48 70 31 81 12 50 38 77 55 63 75 58 1 90 29 94 52 72 67 83 35 42 61 64 68 47 4 17 3
> > > random: entropy device external interface
> > > kbd1 at kbdmux0
> > > ..
> > > 
> > > kern.maxphys: 1048576
> > > hw.physmem: 1099322220544
> > > hw.usermem: 1091323355136
> > > hw.realmem: 1649265344512
> > > vm.phys_locality: 
> > > 0: 10 32 
> > > 1: 32 10 
> > > 
> > > vm.phys_segs: 
> > > SEGMENT 0:
> > > 
> > > start:     0x10000
> > > end:       0xa0000
> > > domain:    0
> > > free list: 0xffffffff81ec7ea0
> > > 
> > > SEGMENT 1:
> > > 
> > > start:     0x100000
> > > end:       0x1000000
> > > domain:    0
> > > free list: 0xffffffff81ec7ea0
> > > 
> > > SEGMENT 2:
> > > 
> > > start:     0x1000000
> > > end:       0x74000000
> > > domain:    0
> > > free list: 0xffffffff81ec7c30
> > > 
> > > SEGMENT 3:
> > > 
> > > start:     0x74043000
> > > end:       0x75db0000
> > > domain:    0
> > > free list: 0xffffffff81ec7c30
> > > 
> > > SEGMENT 4:
> > > 
> > > start:     0x76000000
> > > end:       0x963b8000
> > > domain:    0
> > > free list: 0xffffffff81ec7c30
> > > 
> > > SEGMENT 5:
> > > 
> > > start:     0x963c2000
> > > end:       0x963f9000
> > > domain:    0
> > > free list: 0xffffffff81ec7c30
> > > 
> > > SEGMENT 6:
> > > 
> > > start:     0x96500000
> > > end:       0xa57f7000
> > > domain:    0
> > > free list: 0xffffffff81ec7c30
> > > 
> > > SEGMENT 7:
> > > 
> > > start:     0xa8e96000
> > > end:       0xac000000
> > > domain:    0
> > > free list: 0xffffffff81ec7c30
> > > 
> > > SEGMENT 8:
> > > 
> > > start:     0x10000e000
> > > end:       0x7d07800000
> > > domain:    0
> > > free list: 0xffffffff81ec79c0
> > > 
> > > SEGMENT 9:
> > > 
> > > start:     0x10000019000
> > > end:       0x1797de00000
> > > domain:    1
> > > free list: 0xffffffff81ec8110
> > > 
> > > SEGMENT 10:
> > > 
> > > start:     0x17ffdc00000
> > > end:       0x17ffdde7000
> > > domain:    1
> > > free list: 0xffffffff81ec8110
> > > 
> > > 
> > > 
> > > -- 
> > > B.Walter <bernd@bwct.de> https://www.bwct.de
> > > Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
> > > 
> > 
> > -- 
> > B.Walter <bernd@bwct.de> https://www.bwct.de
> > Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.

-- 
B.Walter <bernd@bwct.de> https://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.



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