Re: [git head] Should X86_PAT really default to yes?


* Frans Pop <elendil@xxxxxxxxx> wrote:

On Friday 02 May 2008, Jesse Barnes wrote:
This is just a transient issue during VT switch or server exit though,
right? X functionality isn't affected, and your VTs work fine?

Transient only. I've just tested again and this time the band was
visible on top of the text on VT1 for about 2 seconds. Then it
disappeared. The artifacts also appear when I log out from KDE (i.e.
without exiting the server), and I also get the messages when logging
out and logging in again.

I do not see any performance issues, but I've only used this kernel
for a very short time.

If so, it might not be a PAT issue but just a different memory
layout or something (and therefore it would really just be a
cosmetic bug in the X driver).

The artifacts may not be a PAT issue directly, but it is a clear
regression for me as I currently have a nice clean screen when X shuts
down. I'm also 100% sure that it is caused by enabling PAT. A kernel
with same config and only PAT disabled does not show the artifacts.

ok, Cc:-ed more folks - this bug has to be resolved regardless of the
default selection.

Ingo
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