PPC64: G5 & 4k/64k page size (was: Re: Call for report - G5/PPC970 status)

[Lennart Sorensen]

On Mon, Jan 06, 2020 at 08:11:47PM +0100, Romain Dolbeau wrote:
> Interesting idea (and I have a 6600 aka NV43 in there, indeed) but I
> don't think so, as
> a) 'nouveau' works in 4.19 with 64 KiB pages
> b) using "module_blacklist=nouveau" doesn't help, I just tried
> c) my original 'bisect' was probably using 'nouveau' when the kernel
> was booting, so at least some 5.x w/o the offending commit and 64 KiB
> pages is fine
> d) to my untrained eye, the crash happens _before_ nouveau is loaded
> (it seems to me I'm still on the OpenFirmware framebuffer, font change
> occurs later).
> 
> Unfortunately I don't have a PCIe OpenFirmware ATI card to test the
> theory further.
> (... well I _do_ have a Sun XVR-300 ... technically it fits the bill ... )

Oh well.  I guess that means they did fix it for all cards and I just
don't see which change was relevant for the older chips then.

Unless something was missed that only triggers occationally.  That would
be annoying.

-- 
Len Sorensen