numactl not working after kernel upgrade
 

All, I had numactl working before i upgraded my kernel, now its not working. I am running centos and it was working on an older kernel verision..


here is what i get when i try and use numactl -- hardware

libnuma: Warning: /sys not mounted. Assuming one node: No such file or directory
available: 1 nodes (0-0)
node 0 size: <not available>
node 0 free: <not available>


I am running on dual dual-core amd opterons.

and numa=on doesn't do anything in my grub.config.

current kernel version is

title CentOS (2.6.9-67.0.4.plus.c4smp)
root (hd0,0)
kernel /vmlinuz-2.6.9-67.0.4.plus.c4smp ro root=/dev/vg0/root rhgb quiet
initrd /initrd-2.6.9-67.0.4.plus.c4smp.img

anyone have any ideas?

Many things require one of the "magic" filesystems like /sys or /dev, which are, in fact, file-systems and therefore must be mounted, which normally occurs at startup.

If this is not happening, the odds are very high that the symptoms you are now seeing are just that ... just symptoms of an underlying bigger problem. The dmesg command might help. (Or: dmesg | less.)

I think that you're seeing just the tip of an iceberg. The root cause of the problem lies elsewhere.

does this help?
rrosnowski@pluto:~> ls /
bin etc lib media opt sbin sys usr
boot home lib64 misc proc selinux tftpboot v1
dev initrd lost+found mnt root srv tmp var
rrosnowski@pluto:~>

its there