Here's the diagnostic results for my 2017 iMac 27" that experienced kernel panics and it says had high cpu usage few times. I cannot figure out what's causing the problem. I suspect overheating but the Macs Fan Control shows about 99-102 degrees F at normal usage.
iMac 27″ 5K, macOS 13.7
This:
2025-03-29 01:13:50 com.apple.WebKit.WebContent High CPU Use (18 times)
First occurrence: 2025-03-23 22:40:17
Details:
Safari
suggests a possible interference from one or more of your Safari extensions. Turn all off and test. If usage is normal, turn them back on one at a time. If the issue returns, the last one enabled is the problem extension.
The report shows your Fusion Drive is healthy and running at expected speed.
This:
2025-03-29 01:13:50 com.apple.WebKit.WebContent High CPU Use (18 times)
First occurrence: 2025-03-23 22:40:17
Details:
Safari
suggests a possible interference from one or more of your Safari extensions. Turn all off and test. If usage is normal, turn them back on one at a time. If the issue returns, the last one enabled is the problem extension.
The report shows your Fusion Drive is healthy and running at expected speed.
I’d remove the cleaner app installed here: Cindori Sensei
That’s a class of apps that can potentially cause surprises.
I do not have Cindori Sensi installed. The only app removal app is called "AppCleaner" I found that plist for Cindori Sensei and removed it. I hope that helps, we'll see. I kinda wish macOS removes other files that doesn't need anymore rather than digging for dead files. This is why I use "AppCleaner" for that purpose.
It crashed while I was using Firefox browser forcing a restart with a kernel panic panel at boot up.
kernel panic EtreCheck 2017 iMac 27"
