Comment by 5d41402abc4b
2 days 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`
2 days 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`
That's a software watchdog. The comment you're replying to is talking about hardware watchdogs.
Yes, but those are done in software
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.
https://www.freedesktop.org/software/systemd/man/latest/syst...
mac’s too?
“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.
Cortex-A includes a watchdog so yeah.