PS: Please cc me I am not on the list: On 2.6.7 kernel & x86_64 arch, I am trying to limit the each node memory. I have 4 CPUs on my system and therefore 4 nodes will be setup. Total RAM is 8G, and each node will have 2G mem. But at times, I may want to limit each node mem to 1G - some thing like: memnode="1G,1G,2G,2G" on the grub. I have written the below patch, which is not working. With this patch, the machine keeps on rebooting after initrd stage: Booting 'Red Hat Enterprise Linux AS (2.6.7-aruba_0.0.0.49309)' kernel /vmlinuz-2.6.7-aruba_0.0.0.49309 root=/dev/system/rootvol console=ttyS0, 9600n8 SPEED=9600 CONSOLE=serial ide=nodma ramdisk_size=40000 quiet hangcheck_t imer.hangcheck_reboot=1 memnode="1g,1g,1g,2M" gdb=0 [Linux-bzImage, setup=0x1400, size=0x1e387c] initrd /initrd-2.6.7-aruba_0.0.0.49309.img [Linux-initrd @ 0x37a38000, 0x5b7016 bytes] Any pointers on my mistake(s) is appreciated. Rajesham __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com