On Mon, Jan 19, 2009 at 12:23:03PM +0200, Tomi Valkeinen wrote:
> Hi,
>
> Running with latest linux-omap kernel on OMAP3 SDP board, I have problem
> with iounmap(). It looks like iounmap() does not properly free large
> areas. Below is a test which fails for me in 6-7 loops.
>
> OMAP spesific ioremap code doesn't do much, so I think it's somewhere in
> generic ARM code. I looked at the ioremap code and for larger areas the
> code uses area sections, and I believe the bug is somewhere there.
In unmap_area_sections(), try changing:
unsigned long addr = virt, end = virt + (size & ~SZ_1M);
to
unsigned long addr = virt, end = virt + (size & ~(SZ_1M - 1));
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