Hi Yinghai, > 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. > -v3: corrected logic checking with request_mem_region_exclusive() > Found by Konrad. > > > 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> This patch is in linux-2.6-watchdog-next for a week now. Will go upstream to linus. Kind regards, Wim. -- 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
