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>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] On Fri, Dec 02, 2005 at 05:57:27PM -0500, Mike Barnard wrote: > Hi, all. I have a fairly beefy server (Dell PowerEdge 8450, > 8-processor 700 Mhz Xeon, 32GB RAM) I'm testing with FreeBSD. I got a > 6.0-RELEASE kernel compiled with both SMP and PAE (the only catch was > that the hptmv driver breaks the compile with SMP, but that's OK as I > don't need it), but for some reason the kernel is only seeing 3.5G of > RAM or thereabouts, judging from what I see in dmesg anyway: > > CPU: Intel Pentium III Xeon (700.07-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0x6a1 Stepping = 1 > > Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE> > real memory = 3758096384 (3584 MB) > avail memory = 3676594176 (3506 MB) > FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs > > The memory line displayed in "top" reflects similar values. Is there > 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 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDkNWNWry0BWjoQKURAijiAJ4lV5ZfweZ/YmgBakK/SVg78fFgDQCggMma 16q4EmM7duf20GEtJmEN6S4= =OF63 -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20051202231525.GB33371>