You should be able to figure out which process it is that is using 100% CPU. If you open a terminal window and just run the regular “top” command there, which process is shown highest there? The name of the process is in the rightmost column, under “COMMAND”.
I thought the same. But nope. There isn’t one. All processes look like they’re behaving normally, there’s nothing doing anything weird. But one core is running at 100% (and the fans are blowing to match that).
I’ll have to get a s/shot of htop (and top, as that actually shows the % utilisation in user/sys/idle etc, which htop doesn’t) the next time it happens, which is usually at least once a day, so shouldn’t be long.
Everything was working fine, only the network had disconnected. I found out the router was having a problem, so rebooted that. Came back to the laptop spinning and unable to do anything that touched the network.
My saved root terminal that I created earlier was non-responsive.
Any ideas? At this point I’m suspecting the network driver, but haven’t much of a clue what to do next about it
iptables --list… There’s a ton of them!
the VPN sets a ton of rules, Docker sets a whole chain, UFW sets some. I’m not really comfortable deleting all these (I really don’t want to break the VPN, Docker networking, or the firewall). Is there any way of telling which rules are getting used a lot?