On Thu, Jan 17, 2008 at 11:35:51PM +0100, Ingo Molnar wrote: > > * Andreas Herrmann3 <[EMAIL PROTECTED]> wrote: > > > > I'll check this asap > > > > So, now that I've avoided this tiny NULL-pointer-dereference, the > > system boots fine as well with your (slightly modified) patch. See > > dmesg attached. > > for now i applied your ioremap_uncached() patch and removed my patch. > > my patch might work if the MTRR marks that area UC. Does it on your > system?
The region (c0403000-c04031ff) is not characterized by an MTRR. The MTRRdefType specifies it and it is MTRRdefType = 0x0000000000000c00 MemType=0 MtrrDefTypeFixEn=0x1 MtrrDefTypeEn=0x1 => 0==UC So, that's why it worked. Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/