I think I found a Mac kernel bug?

#1

Post by ingve » Sun, Jan 28, 2018, 10:17 AM UTC

I think I found a Mac kernel bug?
jvns.ca

Re: I think I found a Mac kernel bug?

#2

Post by phreack » Sun, Jan 28, 2018, 1:34 PM UTC

It seems Apple just can't get a break these days. Has anyone checked if this bug is exclusive to High Sierra?

Re: I think I found a Mac kernel bug?

#3

Post by Doctor_Fegg » Sun, Jan 28, 2018, 1:36 PM UTC

Sounds very similar to https://github.com/hishamhm/htop/issues/682

Re: I think I found a Mac kernel bug?

#4

Post by tomsmeding » Sun, Jan 28, 2018, 1:49 PM UTC

Doctor_Fegg wrote: post #3

Sounds very similar to https://github.com/hishamhm/htop/issues/682

Very true; she acknowledges it in the article as well.

Re: I think I found a Mac kernel bug?

#5

Post by masklinn » Sun, Jan 28, 2018, 1:50 PM UTC

phreack wrote: post #2

It seems Apple just can't get a break these days. Has anyone checked if this bug is exclusive to High Sierra?

The htop report (in TFA and an other comment) seems high sierra specific (as in, users report the issue starting right when they upgraded to high sierra), running the C snippet from TFA on my system (a 2010 MBP running El Cap'), I can run through 15000 iterations without any freeze, according to TFA "sometimes it needs to try 10 times before it’ll freeze."

Re: I think I found a Mac kernel bug?

#6

Post by terminalcommand » Sun, Jan 28, 2018, 1:52 PM UTC

phreack wrote: post #2

It seems Apple just can't get a break these days. Has anyone checked if this bug is exclusive to High Sierra?

Htop also had segfaults after a while in OpenBSD 6.2 i386, when I used OpenBSD exclusively for a couple of weeks. It could also be present in other BSD-like kernels.

Re: I think I found a Mac kernel bug?

#7

Post by raldi » Sun, Jan 28, 2018, 2:00 PM UTC

tomsmeding wrote: post #4

Doctor_Fegg wrote: post #3

Sounds very similar to https://github.com/hishamhm/htop/issues/682

Very true; she acknowledges it in the article as well.

She does? Where?

Re: I think I found a Mac kernel bug?

#8

Post by aw3c2 » Sun, Jan 28, 2018, 2:03 PM UTC

dang wrote: post #83

I've edited 'he' to 'she' in the two otherwise fine comments that made this mistake ( https://news.ycombinator.com/item?id=16251566 and https://news.ycombinator.com/item?id=16251562 ) and grouped several empty replies and one lame off-topic subthread under this one. It's rare that we do something like this (and I've emailed the author), but it seems fairer than to penalize their original posts, which were otherwise i…

She does.

Re: I think I found a Mac kernel bug?

#9

Post by Doctor_Fegg » Sun, Jan 28, 2018, 2:07 PM UTC

raldi wrote: post #7

tomsmeding wrote: post #4

Earlier quoted context omitted.

Very true; she acknowledges it in the article as well.

She does? Where?

Article has been edited - wasn’t there originally.

Re: I think I found a Mac kernel bug?

#10

Post by chirau » Sun, Jan 28, 2018, 2:17 PM UTC

dang wrote: post #83

I've edited 'he' to 'she' in the two otherwise fine comments that made this mistake ( https://news.ycombinator.com/item?id=16251566 and https://news.ycombinator.com/item?id=16251562 ) and grouped several empty replies and one lame off-topic subthread under this one. It's rare that we do something like this (and I've emailed the author), but it seems fairer than to penalize their original posts, which were otherwise i…

She does