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5d41402abc4b | 1 month ago

>Watchdogs exist on MCUs but also on some "proper" computers

All modern computers have watchdog. You can check your logs

`journalctl -b | grep watchdog`

https://access.redhat.com/articles/7129255

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lgas|1 month ago

That's a software watchdog. The comment you're replying to is talking about hardware watchdogs.

LtdJorge|1 month ago

Yes, but those are done in software

p_l|1 month ago

There's generally at least one watchdog device available in most PCs delivered in last decade, but it's not always utilized. Essentially at one point an intel southbridge integrated a basic watchdog on all models, and it started to just... be included.

So these days you can find a variation on the TCO timer watchdog in most PCs, even if the exact implementation varies so we now have a bunch of drivers for the different variants.

cat-whisperer|1 month ago

mac’s too?

throwup238|1 month ago

“All CPUs” would probably be 99.9999% accurate. It’s just one of those fundamental functions you want in a processor. Whether it’s exposed in the OS is a different matter.

inferiorhuman|1 month ago

Cortex-A includes a watchdog so yeah.