Hi Pratyush,

Great thanks for your help on some update for watchdog framework.

For " Fix parent of watchdog_devices", I will update my patchset.
For the upstreaming patchset"Sysfs status read support", will make a
patch. But upstream it when your patchset is merged.

On 14 September 2015 at 12:21, Pratyush Anand [off-list ref] wrote:

On 10/09/2015:06:45:17 PM, Jon Masters wrote:

quoted

On 06/03/2015 02:53 PM, Timur Tabi wrote:

quoted

On 06/03/2015 01:25 PM, Guenter Roeck wrote:

quoted

In general the idea here would be to use a crashdump kernel, which,
when loaded, would reset the watchdog before it fires. This kernel
would then write a core dump to a specified location.

And this is what we do in fedora or RHEL. There had been some work ongoing in
fedora [1][2] which will help to reset any active watchdog in kdump kernel(if
the watchdog driver has been registered to watchdog_class). It will eventually
help a watchdog on ARM64 platform as well.

[1] https://lists.fedoraproject.org/pipermail/kexec/2015-September/002295.html
[2] https://github.com/pratyushanand/kexec-tools/commits/watchdog_fmaster

~Pratyush

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