On Wednesday, June 6, 2007 3:57 pm Justin Piszcz wrote:
> On Wed, 6 Jun 2007, Jesse Barnes wrote:
> > On Wednesday, June 6, 2007 3:26 pm Justin Piszcz wrote:
> >> 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..
> >
> > It's called "kernel log buffer size" and it's in "General setup".
> >
> > Jesse
>
> Did the dmesg output get you what you needed? Why the few KB
> difference?
>
> :)
Yeah, looked at your e820 and your MTRR settings and I think my patch is
doing the right thing (i.e. trimming just the right amount of memory,
leaving you with as much as possible).
The mem= approach though looks slightly off, but I haven't looked at
x86_64's mem= handling to see why. From a high level though, adjusting
end_pfn is the right thing to do, since theoretically mem= could choose
to make holes in your low memory and keep your high memory in the
allocation pools (though it's not generally implemented this way).
Jesse
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