Bug 368081 – x11-drivers/ati-drivers-11.5 fail with kernel 2.6.39 (CONFIG_BKL)

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Helmut Jarausch 2011-05-19 18:29:05 UTC]

The 2.6.39 (gentoo-sources) kernel doesn't have a Big Kernel Lock anymore.
But exactly that is required by the current ati-drivers.

So ati-drivers cannot coexist with the recent Linux kernel.


Reproducible: Always

[Comment 1 Enrico Tagliavini 2011-05-19 20:03:20 UTC]

I'm sorry this is not a gentoo bug. The AMD propietary driver simply doesn't support 2.6.39 kernels. I'm looking for some custom patch to enable .39 kernel support, if i will find a working one i will surely package it, and you will find it in the gentoo X11 overlay.

If you know such a patch exist, please share, your suggestions are welcome :)

[Comment 2 Sergey Dulko 2011-05-20 04:45:59 UTC]

Created attachment 274055 [details, diff]
patch1

For me helped patches from Debian.

[Comment 3 Sergey Dulko 2011-05-20 04:46:33 UTC]

Created attachment 274057 [details, diff]
patch2

[Comment 4 Sergey Dulko 2011-05-20 04:47:11 UTC]

Created attachment 274059 [details, diff]
patch3

[Comment 5 Enrico Tagliavini 2011-05-20 07:02:02 UTC]

Thank you. I hit those patches too in the ubuntu repo. I have to say i'm a bit scared to simply remove the lock, but i guess canonical is in touch with AMD and this can really be a solution. I will test this during the weekend (can't do today sorry), if it works without stability issue i will upload an updated package.

Cheers

[Comment 6 Enrico Tagliavini 2011-05-21 10:19:31 UTC]

Seems to work, i uploaded ati-drivers-11.5-r1 with the debian/ubuntu patch for .39 kernels.

Cheers

[Comment 7 Helmut Jarausch 2011-05-24 07:49:44 UTC]

(In reply to comment #6)
> Seems to work, i uploaded ati-drivers-11.5-r1 with the debian/ubuntu patch for
> .39 kernels.
> 
> Cheers

Does anyone see this in his/her tree?

Thanks,
Helmut.

[Comment 8 Enrico Tagliavini 2011-05-24 07:56:12 UTC]

It is on the X11 overlay http://git.overlays.gentoo.org/gitweb/?p=proj/x11.git;a=tree;f=x11-drivers/ati-drivers;h=d2944ea33602451f748c5428be8d570e81962cd9;hb=master

Enjoy

[Comment 9 Chí-Thanh Christopher Nguyễn 2011-05-26 12:33:32 UTC]

Reopening as a patch is available.

The ebuild in the x11 overlay has the problem that it won't check for CONFIG_BKL in kernel 2.6.37 and 2.6.38 but applies the patch only for 2.6.39.

[Comment 10 Enrico Tagliavini 2011-05-26 12:37:38 UTC]

Oh my...... i'm so absent-minded sometimes..... i'm sorry i will correct it this evening i hope, thank you

[Comment 11 Enrico Tagliavini 2011-05-26 17:25:13 UTC]

Fixed :)

[Comment 12 Chí-Thanh Christopher Nguyễn 2011-05-26 20:17:38 UTC]

Fixed in CVS.