-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sat, May 26, 2007 at 02:12:43PM +0530, pradeep singh wrote: > On 5/26/07, Ian Brown <ianbrn@xxxxxxxxx> wrote: > >Hello, > > I have added 1GB RAM to a linux machine so now it uses 2 GB RAM. > >I see in "cat /proc/meminfo" only 1GB in MemTotal. > > > >I have x86_64 machine running Fedora Core 6. > >My question is: should I build a kernel with special configuration > >when trying to use > >more than 1GB of RAM ? > Config you kenrel to use Highmem. There is no highmem support for x86_64, due to the 64 bit address space the architecture supports 2 GB without workarounds. Ian, check if the BIOS sees 2GB of RAM. If not, then you probably installed the memory incorrect (check board manual). If it does, something else is wrong and you might want to ask on the appropriate forum (Fedora lists if you're using a FC supplied kernel, linux-kernel list for a kernel.org kernel). Erik - -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGWY6D/PlVHJtIto0RApE9AJ921Z8qH7wmQQNN0OG3rQlyUKIwXQCeKMhu rc1JJzRJFr1df3ncyDI2OhU= =HljP -----END PGP SIGNATURE----- -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ