Hi Guenter, On Thu, Jul 25, 2019 at 6:40 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > Here is your problem: > > 00100000-5e431017 : System RAM > 00c5fffc-00c5ffff : iTCO_wdt > > The address range requested by the watchdog is marked by the BIOS as system memory. > > The patch referenced below tries to address a different problem and does not apply > to your system. > Thanks for catching that. In working case the output of /proc/iomem is, fd000000-fe7fffff : PCI Bus 0000:00 fd000000-fdabffff : pnp 00:09 fdac0000-fdacffff : pnp 00:0b fdad0000-fdadffff : pnp 00:09 fdae0000-fdaeffff : pnp 00:0b fdaf0000-fdafffff : pnp 00:0b fdb00000-fdffffff : pnp 00:09 fdc6000c-fdc6000f : iTCO_wdt fdc6000c-fdc6000f : iTCO_wdt This explains why it works in another system (i7-6700). Regards, Vignesh