Date: Fri, 2 Dec 2005 18:15:25 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Mike Barnard <mike@bleeding-head.com> Cc: freebsd-questions@freebsd.org Subject: Re: PAE not recognizing all RAM Message-ID: <20051202231525.GB33371@xor.obsecurity.org> In-Reply-To: <4390D157.6080400@bleeding-head.com> References: <4390D157.6080400@bleeding-head.com>
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--DKU6Jbt7q3WqK7+M Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Dec 02, 2005 at 05:57:27PM -0500, Mike Barnard wrote: > Hi, all. I have a fairly beefy server (Dell PowerEdge 8450,=20 > 8-processor 700 Mhz Xeon, 32GB RAM) I'm testing with FreeBSD. I got a=20 > 6.0-RELEASE kernel compiled with both SMP and PAE (the only catch was=20 > that the hptmv driver breaks the compile with SMP, but that's OK as I=20 > don't need it), but for some reason the kernel is only seeing 3.5G of=20 > RAM or thereabouts, judging from what I see in dmesg anyway: >=20 > CPU: Intel Pentium III Xeon (700.07-MHz 686-class CPU) > Origin =3D "GenuineIntel" Id =3D 0x6a1 Stepping =3D 1 > =20 > Features=3D0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE= ,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE> > real memory =3D 3758096384 (3584 MB) > avail memory =3D 3676594176 (3506 MB) > FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs >=20 > The memory line displayed in "top" reflects similar values. Is there= =20 > some magic I need to do to make it see all the RAM? No, it should just work if you have the kernel configured correctly. At a guess you didn't actually enable PAE: please post your kernel config file so we can check. Kris --DKU6Jbt7q3WqK7+M Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDkNWNWry0BWjoQKURAijiAJ4lV5ZfweZ/YmgBakK/SVg78fFgDQCggMma 16q4EmM7duf20GEtJmEN6S4= =OF63 -----END PGP SIGNATURE----- --DKU6Jbt7q3WqK7+M--
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