Re: x86 git tree broken (bisected)

From: Yinghai Lu
Date: Sun Apr 13 2008 - 04:24:56 EST


On Fri, Apr 11, 2008 at 1:51 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
>
> On Friday, 11 of April 2008, Yinghai Lu wrote:
> > On Fri, Apr 11, 2008 at 12:26 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > > On Friday, 11 of April 2008, Rafael J. Wysocki wrote:
> > > > On Thursday, 10 of April 2008, Ingo Molnar wrote:
> > > > >
> > > > > * Ingo Molnar <mingo@xxxxxxx> wrote:
> > > > >
> > > > > > > > > First, the X server doesn't want to start (it says it couldn't
> > > > > > > > > mmap the framebuffer).
> > > > > > > >
> > > > > > > > could you send your .config?
> > > > > > >
> > > > > > > Attached.
> > > > > >
> > > > > > could you disable this option:
> > > > > >
> > > > > > CONFIG_NONPROMISC_DEVMEM=y
> > > > > >
> > > > > > does it help with the X problem?
> > > >
> > > > That didn't help.
> > > >
> > > > > btw., Xorg works fine here on a comparable AMD system - but i use a
> > > > > rather new distro (Fedora 8) which has Xorg 7.2.
> > > >
> > > > My system is an OpenSUSE 10.3 and it has Xorg 7.2 as well.
> > > >
> > > > I think the problem is somehow related to the Radeon.
> > >
> > > The bisection turned up commit ea1441bdf53692c3dc1fd2658addcf1205629661
> > > "x86: use bus conf in NB conf fun1 to get bus range on, on 64-bit" as the one
> > > causing problems.
> > >
> > > Unfortunately, I can't revert cleanly it, because there are two more commits
> > > depending on it in a highly nontrivial fashion, so I have reverted all three
> > > commits
> > >
> > > a365998cd2cecfb827469dbd57c29602c106cb83
> > > 44f7f90fbe7a3a99aab082f765346514b7b5c705
> > > ea1441bdf53692c3dc1fd2658addcf1205629661
> > >
> > > and X starts again. Also, suspend to RAM works from under X.
> >
> > please keep the three patches and applied the two attached debug patches.
> >
> > i wonder if there is some io allocation overlapping with your system.
>
> Attached is a boot dmesg output from the current x86 git tree with your two
> patches applied.
>
can you try to apply the patch i sent to you about agp bridge order
reading for buggy silicon?

Please boot kernel with "debug"...

I want to verify if you can get

"
Aperture conflicts with PCI mapping.
"

in your boot log...

YH
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