I think I found a Mac kernel bug (2018)
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Re: I think I found a Mac kernel bug (2018)
#2Is this fixed now ?
Re: I think I found a Mac kernel bug (2018)
#3It's freezing the querying of process status, which is very not good, but that isn't the entire kernel. If it was the entire kernel, you wouldn't be able to use Ctrl+C.
Re: I think I found a Mac kernel bug (2018)
#4Is this fixed now ?
Tested it on macOS 12.3. It's fixed.
Re: I think I found a Mac kernel bug (2018)
#5My naïve guess is that this is probably some sort of lock contention thing.
Re: I think I found a Mac kernel bug (2018)
#6Coincidentally, I also stumbled upon a way to make the kernel of Apple Silicon Macs panic and restart while developing the https://lowtechguys.com website.
I distilled the problem in a repo so it can be reproduced with a single command: https://github.com/alin23/m1-panic
I found it while on Monterey and reported it 2 times through Feedback Assistant, but it still happens on Ventura.
NOTE: Don't try it without saving all your work, it has a very high chance of restarting your computer forcefully.
Re: I think I found a Mac kernel bug (2018)
#7Coincidentally, I also stumbled upon a way to make the kernel of Apple Silicon Macs panic and restart while developing the https://lowtechguys.com website. I distilled the problem in a repo so it can be reproduced with a single command: https://github.com/alin23/m1-panic I found it while on Monterey and reported it 2 times through Feedback Assistant, but it still happens on Ventura. NOTE: Don't try it without saving…
Do you know what the underlying problematic instruction sequence is? Or the precise location where it halts?
Re: I think I found a Mac kernel bug (2018)
#8Coincidentally, I also stumbled upon a way to make the kernel of Apple Silicon Macs panic and restart while developing the https://lowtechguys.com website. I distilled the problem in a repo so it can be reproduced with a single command: https://github.com/alin23/m1-panic I found it while on Monterey and reported it 2 times through Feedback Assistant, but it still happens on Ventura. NOTE: Don't try it without saving…
Can you put the panic log text into the repo as well?
Re: I think I found a Mac kernel bug (2018)
#9Is this fixed now ?
Tested it on macOS 12.3. It's fixed.
https://github.com/hishamhm/htop/issues/682#issuecomment-377... (the htop issue) says "according to others above, Apple has seemingly fixed this in 10.13.4."
Re: I think I found a Mac kernel bug (2018)
#10Not surprised. I wrote some kqueue code in C once that not only froze the Mac Kernel. It caused the entire computer to crash. I reported the issue to Apple, and never really heard back. They don't really care, as long as all the mac store apps work, in my experience.
This was one call to kqueue with incorrect (but not particularly malicious, just normal C silliness) arguments, and boom!