Re: [PATCH] trim memory not covered by WB MTRRs

[Justin Piszcz <jpiszcz@lucidpixels.com>]

On Wed, 6 Jun 2007, Jesse Barnes wrote:

> On Wednesday, June 6, 2007 3:13 pm Justin Piszcz wrote:
> > On Wed, 6 Jun 2007, Jesse Barnes wrote:
> > > On Wednesday, June 6, 2007 3:03 pm Justin Piszcz wrote:
> > > > Mem:   8039620k total,  7936472k used,   103148k free,      708k
> > > > buffers Mem:   8039608k total,   969380k used,  7070228k free,
> > > > 1232k buffers
> > > >
> > > > I am curious, why does the patch != the mem=8832M?
> > >
> > > I'm not sure... can you post your e820 map from boot and the
> > > contents of /proc/mtrr?  Maybe my patch is trimming off a few too
> > > many pages, or maybe 8832M isn't quite right and actually ends up
> > > leaving you with a few uncached pages.
> > >
> > > Jesse
> >
> > Unless you know of some other way I can capture the output, it only
> > starts showing the dmesg from [50..] onward.
>
> Did you boot the kernel with the 'debug' option?  Maybe your dmesg
> buffer is too small (there's a config option for that iirc).
>
> Jesse

Nope, I booted with only netconsole= options.  I have a lot of HW in the 
box and I guess the buffer is too small.  Not sure where to change it in 
the kernel.  Looking..
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