[foner: I included you in the CC because your problem seems similar.]
> Sorry if you get this post by mistake. I found your address googling
> for "forcedeth vesa".
Well, you reached the right person.
> When i use forcedeth module, both with 2.4.26 and 2.6.6 kernels, i
> can't access vesa with mplayer. Just loading the module doesn't
> cause the problem, only after i configure the net with ifconfig i
> can't use vesa.
This is interesting. Does the problem persist if you ifdown the interface?
> If i use nvnet NVidia driver with 2.4.26, everything goes fine (no
> nvnet for 2.6.x kernels).
That is even more interesting. So the bug affects forcedeth, but not
nvnet. Hmmm. We'll have to review the code again.
> It's an EPOX 8RDA+ motherboard.
Foner: Do you see similarities between your problem and this one?
Janusz, Foner: Are you willing to test forcedeth with a few dozen
patch, recompile, install, power down, power up and test again?
I would send you patches to binary search the offending code.