memtest updates

[Alexander Aring]

On Tue, Oct 27, 2015 at 05:54:59PM +0100, Alexander Aring wrote:
> On Tue, Oct 27, 2015 at 09:29:53AM +0100, Sascha Hauer wrote:
> > This series has some updates for the memory test. The output and the
> > code are made more compact and some additional options are added. Also
> > the remap_range function is reworked.
> > 
> 
...
> 
> What means 0xdeadbeef here?

okay, I it's guess the pattern argument which doesn't exist anymore.

I run memtest now with:

memtest -t -u

on the RPi and it seems the first progressbar range of "0/3" - "1/3" runs
faster than the last range of "1/3" - "3/3".

This sounds like that remap_range does not full manipulate the range
of page tables (the range at the start address). Okay we can't full use
the range, because we need to be PAGE_ALIGN, but the whole first range of
"0/3" - "1/3" sounds not correct for me (it's bigger than PAGE_ALIGN).

Maybe everything is correct and the first address room is always a
little bit faster than the others, but I don't think that.

I haven't tried to debug this issue. Can somebody confirm that on an
other arm board?

- Alex