Date: Sat, 19 Jun 2010 21:27:21 +0400 From: Andrey Fesenko <f0andrey@gmail.com> To: Andreas Tobler <andreast-list@fgznet.ch> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: only 3 of 4GB memory available on amd64 8.1-RC1 Message-ID: <AANLkTinQr1jHad2t_2l7Gx5nA31Y7ziht4e64zqWYlSi@mail.gmail.com> In-Reply-To: <4C1CFB72.5000806@fgznet.ch> References: <4C1CFB72.5000806@fgznet.ch>
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On Sat, Jun 19, 2010 at 9:16 PM, Andreas Tobler <andreast-list@fgznet.ch> w=
rote:
> Hi all,
>
> I got my hands on a t60 with 4GB of RAM (BIOS displays it)
>
> And I installed 8.1-RC1 on it:
>
> FreeBSD 8.1-RC1 #0: Mon Jun 14 13:40:28 UTC 2010
> =C2=A0 =C2=A0root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd6=
4
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Core(TM)2 CPU =C2=A0 =C2=A0 =C2=A0 =C2=A0 T5600 =C2=A0@ 1.8=
3GHz (1828.76-MHz K8-class
> CPU)
> =C2=A0Origin =3D "GenuineIntel" =C2=A0Id =3D 0x6f6 =C2=A0Family =3D 6 =C2=
=A0Model =3D f =C2=A0Stepping =3D 6
>
> Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> =C2=A0Features2=3D0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xT=
PR,PDCM>
> =C2=A0AMD Features=3D0x20100800<SYSCALL,NX,LM>
> =C2=A0AMD Features2=3D0x1<LAHF>
> =C2=A0TSC: P-state invariant
> real memory =C2=A0=3D 4294967296 (4096 MB)
> avail memory =3D 3092344832 (2949 MB)
> ACPI APIC Table: <LENOVO TP-79 =C2=A0 >
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
> FreeBSD/SMP: 1 package(s) x 2 core(s)
> =C2=A0cpu0 (BSP): APIC ID: =C2=A00
> =C2=A0cpu1 (AP): APIC ID: =C2=A01
>
>
>
> Do I need to configure something special to get the full 4GB of memory?
>
> I only found the PAE hint, but this is for x86 machines, right?
>
I think this BIOS specific, may be video rezerv
FreeBSD 9.0-CURRENT #0 r208284: Wed May 19 09:34:15 MSD 2010
andrey@my_book:/home/andrey/obj/obj/home/andrey/src_head/sys/MY_BOOK am=
d64
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz (1828.77-MHz K8-class =
CPU)
Origin =3D "GenuineIntel" Id =3D 0x6f2 Family =3D 6 Model =3D f Stepp=
ing =3D 2
Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=3D0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDC=
M>
AMD Features=3D0x20100800<SYSCALL,NX,LM>
AMD Features2=3D0x1<LAHF>
TSC: P-state invariant
real memory =3D 4294967296 (4096 MB)
avail memory =3D 3339923456 (3185 MB)
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