On Wed, Mar 16, 2011 at 02:18:17PM -0700, Yinghai Lu wrote: > > > Stefano found SP5100 TCO watchdog driver using wrong address. > > [ 9.148536] SP5100 TCO timer: SP5100 TCO WatchDog Timer Driver v0.01 > [ 9.148628] DEBUG __ioremap_caller WARNING address=b8fe00 size=8 valid=1 reserved=1 > > and e820 said that range is RAM. > > We should check if we can use that reading out. BIOS could just program wrong address there. > > -v2: Mike pointed out one path need one release. > > Reported-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> > Signed-off-by:Yinghai Lu <yinghai@xxxxxxxxxx> > Acked-by: Mike Waychison <mikew@xxxxxxxxxx> Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Stefano, this fixes my bootup issues with your: xen: set max_pfn_mapped to the last pfn mapped patch. Will try the full patchset tomorrow. -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html