Yes, it is normal, you don't have the gpg key used to sign the kernel.

Thank you very much.

FWIW, you used the wrong command for verification. Greg K-H signed the ".tar" file before compressed it using various compression algorithms. The right command in your case should be:

Oops, I missed the "unxz" command before that. Anyway, with the above method you keep things clean using just original downloaded files.

check this out -> http://kernel.org/signature.html#usi...nel-signatures

Hey guys, unfortunately i've nothing helpful to contribute to this conversation, but i just thought i'd say that i've also been experiencing freezes, except, on sandy bridge. I experience these freeze issues in Slackware 14 and Opensuse 12.2 on my thinkpad x220, i was beginning to think it was a hardware issue, (i'm still not convince it isn't for my situation). Opensuse runs the 3.4.6-2.10 kernel already. I'm going to try out the tips here on my Slack partition and hopefully they will work as i'm slowly converting my main laptop partition back to Slackware again, and it'd be great to remove this issue.

Yes, but if you forgot to import the key it will take longer because you'll have to run xz again. You only have to run unxz once. I delete the tarball afterwards anyway, what use is there to keep it ?

I had this problem too on an Asus R500VD ivy bridge, and also in an Acer A5920 intel 2 duo processor.
With aid of http://slackware.mirrors.tds.net/pub...sting-3.6-rc4/ i`m able to build the 3.6.3 kernel and it seems to be working fine until now.
Unfortunately i`m not own the acer notebook anymore to build a newer kernel to it, but the problem ocurred there too.

My Thinkpad T430 have the same problem,but after complied kernel 3.4.11,the problem is solved!I suggest complied kernel 3.4.11!good luck!