[poky] [PATCH 1/1] poky: update qemu* to prefer 4.4 kernel

[Bruce Ashfield]

On Sat, Feb 13, 2016 at 3:31 AM, Richard Purdie <
richard.purdie at linuxfoundation.org> wrote:

> On Fri, 2016-02-12 at 15:32 +0000, Richard Purdie wrote:
> > On Fri, 2016-02-12 at 14:36 +0000, Richard Purdie wrote:
> > > A quick look at upstream makes me wonder about:
> > >
> > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/com
> > > mi
> > > t/?id=d9fe4fab11976e56b2e992980bf6ce948bdf02ac
> > >
> > > which changes the code in this area.
> >
> > FWIW this doesn't help, the problem still exists after applying it.
> >
> > Setting CONFIG_X86_PAT to is not set in the defconfig did "fix" it,
> > unsurprisingly.
>
> Also, in the last set of builds, despite booting with "nopat", we see:
>
> https://autobuilder.yoctoproject.org/main/builders/nightly-x86-lsb/buil
> ds/637/steps/Running%20Sanity%20Tests/logs/stdio
>
> Central error: [    9.298049] Failed to add WC MTRR for
> [fd000000-fdffffff]; performance may suffer.
>
> Why we only see this on the lsb run I don't know but that address looks
> like the one causing problems elsewhere with PAT. It could therefore
> look like this is related to uvesafb.
>

Interesting. And of course as I was mentioning in my update discussion, that
I ran out of cycles to test the 3x kernel types with LSB .. murphy's law I
suppose.

Bruce


>
> Cheers,
>
> Richard
> --
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-- 
"Thou shalt not follow the NULL pointer, for chaos and madness await thee
at its end"
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