Kernel Modules fail to load after recompiling kernel

Zach_the_Lizard · n00b Joined: 20 Jun 2008 Posts: 17 Location: /root

Hello once again!

After getting my install exactly as I wanted it, after installing once already, I realized that I had foolishly forgotten to enable ALSA support. Without thinking, I typed "emerge alsa," and walked away to get a drink. Much to my surprise, I came back to discover that doing so had downloaded an entirely new kernel. So, still having my kernel source, I head to /usr/src/linux, make menuconfig, make && make modules_install. All appears to be well. I then re-emerge the nvidia drivers. As the kernel is the same name, I don't need to edit grub.conf. I do copy the new kernel to /boot, however. I restart and boot into my new kernel and instantly the pain starts.

X wouldn't start at first, and I was curious as to why. It appears the nvidia kmod (amongst others) has some sort of mismatch between the kernel I just compiled, so I re-emerge it and try starting X again. No dice. I try rebooting (something I think is absolutely unnecessary). As I boot,, I make note of a few things that scroll by. the nvidia kernel module fails to load, as I see, but it goes on to explain why. It lists says: kernel-2.6.24-gentoo-r8 SMP mod_unload CORE2 4KSTACKS should be '2.6.24-gentoo-r8 mod_unload CORE2.' This is a rather interesting error. Of course, a few other kernel modules ended up like this, but the root of the problem is likely the same.

Can anyone shed any light on what I should do?

shazam75 · Posted: Mon Jun 23, 2008 12:51 am Post subject:

Hi

Yes there is an issue with nvidia and the kernel - every time you update the kernel (or if there are any changes) the nvidia kernel needs to be updated or reinstalled - try running env-update.

Also look at

http://www.gentoo.org/doc/en/nvidia-guide.xml

to see what else - i am at work and i have made notes about this - but they at at home

Cheers
Shelton.
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muhsinzubeir · l33t Joined: 29 Sep 2007 Posts: 948 Location: /home/muhsin

kimmie · Guru Joined: 08 Sep 2004 Posts: 531 Location: Australia

The error message might be complaining that your kernel was built with 4K stacks instead of 8K. The option is 4KSTACKS, it's down the bottom in the Kernel Hacking section. Try turning it off, then rebuild your kernel and your modules.

shazam75 · Posted: Thu Jun 26, 2008 4:25 am Post subject:

Hi Zach

You must also run