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The core part of an operating system, responsible for managing resource allocation.

65 votes
Accepted

AppleCare engineer says Macs need weekly reboots b/c "kernel expires". What's that mean?

While it is arguable (opinions vary greatly) that regularly rebooting a computer (i.e. any computer) is beneficial, there is certainly no kernel expiry going on. … So, being told that you don't reboot your computer often enough, which is necessary because the kernel expires, is nothing more than a figment of someone's imagination. …
Monomeeth's user avatar
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1 vote

What does "Failed to open swapfile" mean and is it a problem?

This could mean a number of things and yes, I would be concerned about it. First things first, ensure you have a working backup. My next suggestion would be to reset both the PRAM/NVRAM and the SMC t …
Monomeeth's user avatar
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1 vote

Macbook pro touch bar spoiled with kernel panics

Since you've dropped it the first thing you should do is run some hardware diagnostics. Run Apple Diagnostics Follow the steps below to run Apple Diagnostics: Fully shut down your MBP Restart your …
Monomeeth's user avatar
  • 65k
9 votes

In which version(s) did macOS transition from 32-bit to 64-bit?

And yes, the kernel was updated so that it could run in 64-bit mode on some limited hardware, and only by default on Mac Pros, while other newer Macs were capable of running the kernel bit did not do … However, I can say that running 64-bit apps on a 32-bit kernel is certainly rare for a consumer-level operating system. …
Monomeeth's user avatar
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