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SubjectRe: Re:No backlight control on PowerBook G4
Am Don, den 06.11.2003 schrieb Benjamin Herrenschmidt um 01:28:

> No, I told you to use _my_ 2.6 tree which contains a new radeonfb
> that have not yet been merged upstream.

Still cannot try this because your kernel wouldn't even survive yaboot.

> > BTW: It took me quite a while to figure out that the only working image
> > with yaboot was the zImage.chrp. The normal vmlinux doesn't contain a
> > valid ELF signature (according to yaboot) and the seemingly obvious
> > vmlinux.elf-pmac goes boom while trying to decompress the kernel.

> Ugh ?

> Yaboot normally loads a plain vmlinux, though if you are using tftp, you
> need to modify yaboot to be able to d/l more than 4Mb (edit fs_of.c and
> change the allocated size). The ELF image should work, at least the
> one produced by my tree does, it's possible that there's a similar size
> problem with the one in Linus tree, a few of those recent changes haven't
> yet made it to Linus.

With your tree I now have the problem that it doesn't even boot anymore.
The CHRP kernel which worked before stopped after "CHRP kernel
loader...", the elf-pmac one still crashes with:
Elf32 kernel loaded...
chrpboot starting: loaded at 0x01000000
heap at 0x00003000
gunzipping (0x00010000 <- 0x01006cf8:0x01155486)...
Decrementer exception at %SRR0: 01005804 %SRR1: 00003030
0 >

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