On 7/24/19 10:12 PM, Vignesh Raman wrote:
Hi Guenter,
On Wed, Jul 24, 2019 at 6:57 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
What is the output of /proc/iomem, what PCI devices does it have, and what are
the ACPI devices ? Reason for asking is that I don't immediately see the ACPI
or PCI devices associated with above patch in your dmesg. If not, the patch
might actually cause the watchdog in your system not to work.
/proc/iomem - http://paste.debian.net/1092996/
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.
Guenter
PCI devices - http://paste.debian.net/1092997/
ACPI devices - http://paste.debian.net/1093003/
Also, did this ever work in your system ? If it did work, did the failure
start after a kernel update or after a BIOS update ?
The hardware watchdog has never worked in the system. Without the
patch https://lore.kernel.org/patchwork/patch/770990/ the probe error
is seen,
[ 3.828440] iTCO_wdt iTCO_wdt: can't request region for resource
[mem 0x00c5fffc-0x00c5ffff]
[ 3.828803] iTCO_wdt: probe of iTCO_wdt failed with error -16
With the patch the module loads fine, but the hardware watchdog does not work.
Regards,
Vignesh
