Hi, On Mon, 2009-01-19 at 11:01 +0000, ext Russell King - ARM Linux wrote: > 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)); This didn't help. I Added two debug prints, not sure if it means anything but the size on the second unmap is not the same as in the previous ones. remap_area_sections(virt=d2000000, size=1000000, end=d3000000, pfn=70000) unmap_area_sections(virt=d2000000, size=1000000, end=d3000000) ioremapped to d2000000 unmap_area_sections(virt=d2000000, size=1001000, end=d3000000) Tomi -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
