1. it works, be happy.
2. the memory map from the bios is being honoured; the kernel makes
conservative decisions to honours it, as a result it works. see 1.
3. if you want to drill down further and get access to more memory,
you have the source code AND the hardware.
4. if you don't want to drill down, but just want to bitch, sorry noone
cares enough to do anything about this without the hardware, so go get
a padded box for it and maybe we can find a developer who will take the
machine off your hands.
> On May 31 08:48:09, hans@stare.cz wrote:
> > This is current/amd64 on an old MacBook A1181 (dmesg below).
> > Until yesterday it had 2+1 GB of RAM, now it has 2+2 GB.
> > However, dmesg still reports around 3GB.
> >
> > No, it's not the old dmesg; yes, I have checked. In fact,
> > spdmem0 at iic0 addr 0x50: 2GB DDR2 SDRAM non-parity PC2-6400CL6 SO-DIMM
> > spdmem1 at iic0 addr 0x52: 2GB DDR2 SDRAM non-parity PC2-6400CL6 SO-DIMM
> >
> > It's not a hardwware issue - the MacOS that dualboots this machine
> > sees and uses the 4GB. Am I missing something obvious?
> >
> > OpenBSD 6.1-current (GENERIC.MP) #0: Sat May 20 12:31:37 CEST 2017
> > hans@macbook.stare.cz:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> > real mem = 3171909632 (3024MB)
> > avail mem = 3070050304 (2927MB)
>
> Here is a fresh upgrade to the latest snapshot
> - the issue is the same.
>
>
> OpenBSD 6.1-current (GENERIC.MP) #87: Tue May 30 21:05:25 MDT 2017
> deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 3171909632 (3024MB)
> avail mem = 3070050304 (2927MB)
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe0000 (37 entries)
> bios0: vendor Apple Inc. version "MB21.88Z.00A5.B07.0706270922" date 06/27/07
> bios0: Apple Inc. MacBook2,1
> acpi0 at bios0: rev 2
> acpi0: sleep states S0 S3 S4 S5
> acpi0: tables DSDT FACP HPET APIC MCFG ASF! SBST ECDT SSDT SSDT SSDT
> acpi0: wakeup devices ADP1(S3) LID0(S3) PXS1(S4) PXS2(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB7(S3) EC__(S3)
> acpitimer0 at acpi0: 3579545 Hz, 24 bits
> acpihpet0 at acpi0: 14318179 Hz
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz, 2161.59 MHz
> 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,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF,SENSOR
> cpu0: 4MB 64b/line 16-way L2 cache
> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
> cpu0: apic clock running at 166MHz
> cpu0: mwait min=64, max=64, C-substates=0.2.2.2.2, IBE
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz, 2161.26 MHz
> 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,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF,SENSOR
> cpu1: 4MB 64b/line 16-way L2 cache
> cpu1: smt 0, core 1, package 0
> ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins
> acpimcfg0 at acpi0 addr 0xf0000000, bus 0-255
> acpiec0 at acpi0
> acpiprt0 at acpi0: bus 0 (PCI0)
> acpiprt1 at acpi0: bus 1 (RP01)
> acpiprt2 at acpi0: bus 2 (RP02)
> acpiprt3 at acpi0: bus 3 (PCIB)
> acpicpu0 at acpi0: !C3(100@55 mwait@0x31), !C2(500@1 mwait@0x10), C1(1000@1 mwait), PSS
> acpicpu1 at acpi0: !C3(100@55 mwait@0x31), !C2(500@1 mwait@0x10), C1(1000@1 mwait), PSS
> acpisbs0 at acpi0: SBS0 model "ASMB016" serial 19351 type LION oem "DP"
> acpiac0 at acpi0: AC unit online
> acpibtn0 at acpi0: LID0
> "APP0002" at acpi0 not configured
> acpibtn1 at acpi0: PWRB
> acpibtn2 at acpi0: SLPB
> "APP0001" at acpi0 not configured
> "APP0003" at acpi0 not configured
> "ACPI0001" at acpi0 not configured
> acpivideo0 at acpi0: GFX0
> cpu0: Enhanced SpeedStep 2161 MHz: speeds: 2167, 2000, 1833, 1667, 1500, 1333, 1000 MHz
> memory map conflict 0xbef00000/0x100000
> memory map conflict 0xbf000000/0x1000000
> memory map conflict 0xf00f8000/0x1000
> memory map conflict 0xfed1c000/0x4000
> memory map conflict 0xfffb0000/0x30000
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel 82945GM Host" rev 0x03
> inteldrm0 at pci0 dev 2 function 0 "Intel 82945GM Video" rev 0x03
> drm0 at inteldrm0
> intagp0 at inteldrm0
> agp0 at intagp0: aperture at 0xc0000000, size 0x10000000
> inteldrm0: apic 1 int 16
> inteldrm0: 1280x800, 32bpp
> wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
> wsdisplay0: screen 1-5 added (std, vt100 emulation)
> "Intel 82945GM Video" rev 0x03 at pci0 dev 2 function 1 not configured
> vendor "Intel", unknown product 0x27a3 (class DASP subclass Time and Frequency, rev 0x03) at pci0 dev 7 function 0 not configured
> azalia0 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x02: msi
> azalia0: codecs: Sigmatel STAC9220/1
> audio0 at azalia0
> ppb0 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x02: msi
> pci1 at ppb0 bus 1
> mskc0 at pci1 dev 0 function 0 "Marvell Yukon 88E8053" rev 0x22, Yukon-2 EC rev. A3 (0x2): msi
> msk0 at mskc0 port A: address 00:1b:63:36:2b:5d
> eephy0 at msk0 phy 0: 88E1111 Gigabit PHY, rev. 2
> ppb1 at pci0 dev 28 function 1 "Intel 82801GB PCIE" rev 0x02: msi
> pci2 at ppb1 bus 2
> athn0 at pci2 dev 0 function 0 "Atheros AR5418" rev 0x01: apic 1 int 17
> athn0: MAC AR5418 rev 2, RF AR5133 (2T3R), ROM rev 4, address 00:1c:b3:c4:b2:ae
> uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x02: apic 1 int 21
> uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x02: apic 1 int 19
> uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x02: apic 1 int 18
> uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x02: apic 1 int 16
> ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x02: apic 1 int 21
> usb0 at ehci0: USB revision 2.0
> uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> ppb2 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xe2
> pci3 at ppb2 bus 3
> "AT&T/Lucent FW322 1394" rev 0x61 at pci3 dev 3 function 0 not configured
> pcib0 at pci0 dev 31 function 0 "Intel 82801GBM LPC" rev 0x02
> pciide0 at pci0 dev 31 function 1 "Intel 82801GB IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility
> atapiscsi0 at pciide0 channel 0 drive 0
> scsibus1 at atapiscsi0: 2 targets
> cd0 at scsibus1 targ 0 lun 0: <MATSHITA, DVD-R UJ-857E, ZB0E> ATAPI 5/cdrom removable
> cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 4
> pciide0: channel 1 disabled (no drives)
> pciide1 at pci0 dev 31 function 2 "Intel 82801GBM SATA" rev 0x02: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI
> pciide1: using apic 1 int 19 for native-PCI interrupt
> wd0 at pciide1 channel 0 drive 1: <ST980811AS>
> wd0: 16-sector PIO, LBA48, 76319MB, 156301488 sectors
> wd0(pciide1:0:1): using PIO mode 4, Ultra-DMA mode 6
> ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x02: apic 1 int 19
> iic0 at ichiic0
> iic0: addr 0x48 00=36 01=00 02=4b 03=50 words 00=3680 01=00ff 02=4b00 03=5000 04=ffff 05=ffff 06=ffff 07=ffff
> spdmem0 at iic0 addr 0x50: 2GB DDR2 SDRAM non-parity PC2-6400CL6 SO-DIMM
> spdmem1 at iic0 addr 0x52: 2GB DDR2 SDRAM non-parity PC2-6400CL6 SO-DIMM
> usb1 at uhci0: USB revision 1.0
> uhub1 at usb1 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb2 at uhci1: USB revision 1.0
> uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb3 at uhci2: USB revision 1.0
> uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb4 at uhci3: USB revision 1.0
> uhub4 at usb4 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> isa0 at pcib0
> isadma0 at isa0
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> asmc0 at isa0 port 0x300/32: rev 1.17f517, 226 keys
> vmm0 at mainbus0: VMX
> drm: render error detected, EIR: 0x00000010
> drm: page table error
> drm: PGTBL_ER: 0x00000102
> error: [drm:pid0:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking
> drm: render error detected, EIR: 0x00000010
> drm: page table error
> drm: PGTBL_ER: 0x00000102
> uvideo0 at uhub0 port 4 configuration 1 interface 0 "Micron Built-in iSight" rev 2.00/1.84 addr 2
> video0 at uvideo0
> uhidev0 at uhub1 port 2 configuration 1 interface 0 "Apple Computer Apple Internal Keyboard / Trackpad" rev 2.00/0.18 addr 2
> uhidev0: iclass 3/1
> ukbd0 at uhidev0: 8 variable keys, 5 key codes, country code 13
> wskbd0 at ukbd0: console keyboard, using wsdisplay0
> uhidev1 at uhub1 port 2 configuration 1 interface 1 "Apple Computer Apple Internal Keyboard / Trackpad" rev 2.00/0.18 addr 2
> uhidev1: iclass 3/1, 5 report ids
> ums0 at uhidev1 reportid 2: 3 buttons
> wsmouse0 at ums0 mux 0
> ums1 at uhidev1 reportid 5
> ums1: mouse has no X report
> uhidev2 at uhub1 port 2 configuration 1 interface 2 "Apple Computer Apple Internal Keyboard / Trackpad" rev 2.00/0.18 addr 2
> uhidev2: iclass 3/0
> uhid0 at uhidev2: input=1, output=0, feature=0
> uhidev3 at uhub3 port 2 configuration 1 interface 0 "Apple Computer, Inc. IR Receiver" rev 2.00/1.10 addr 2
> uhidev3: iclass 3/0, 38 report ids
> uhid1 at uhidev3 reportid 36: input=4, output=0, feature=0
> uhid2 at uhidev3 reportid 37: input=4, output=0, feature=0
> uhid3 at uhidev3 reportid 38: input=4, output=0, feature=0
> uhidev4 at uhub4 port 1 configuration 1 interface 0 "Apple Computer HID-proxy" rev 2.00/19.65 addr 2
> uhidev4: iclass 3/1
> ukbd1 at uhidev4: 8 variable keys, 6 key codes
> wskbd1 at ukbd1 mux 1
> wskbd1: connecting to wsdisplay0
> uhidev5 at uhub4 port 1 configuration 1 interface 1 "Apple Computer HID-proxy" rev 2.00/19.65 addr 2
> uhidev5: iclass 3/1
> ums2 at uhidev5: 5 buttons
> wsmouse1 at ums2 mux 0
> vscsi0 at root
> scsibus2 at vscsi0: 256 targets
> softraid0 at root
> scsibus3 at softraid0: 256 targets
> sd0 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
> sd0: 20821MB, 512 bytes/sector, 42642928 sectors
> root on sd0a (075497a4ce516f3d.a) swap on sd0b dump on sd0b
>
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