[Bug 55931] Crashes with radeon driver and r100/r200 cards (Radeon 7000 & 9250) on Tyan S2460 MB (AMD 32)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=55931

--- Comment #8 from Alex Deucher <alexdeucher at gmail.com> ---
(In reply to Fred Stevens from comment #6)
> (In reply to Alex Deucher from comment #5)
> > Does it work if you disable AGP?  Boot with radeon.agpmode=-1 on the kernel
> > command line in grub.
> 
> It's working so far.  I did try X and it didn't crash with the usual
> sequences (windowmaker wm, firefox, xterm, use wm to modify a "docked"
> applications settings).  I'm using kernel 3.10.17-i586 from Slackware-14.1
> (happens to be Slackware-Current right now).  My next check, which is being
> done presently, is to compile TeXLive from SlackBuild.  This will crash the
> kernel when the compressed package is built (larger than 1GB).
> 
> I am attaching a current dmesg with the radeon.agp=-1 passed to grub.

It's radeon.agpmode=-1 not radeon.agp=-1.  You are preventing the radeon kernel
module from loading due to an invalid parameter name:

[   32.781722] radeon: `-1' invalid for parameter `agp'

Alternatively, you can try adjusting the agpmode.  E.g., radeon.agpmode=1 or 2
or 4. to force the agpmode to something other than what the bios set up.

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