On Friday, February 23, 2018 at 8:20:05 AM UTC, Jeroen Demeyer wrote:
> On 2018-02-22 21:19, Justin C. Walker wrote: 
> > the crash log. 
> What is that? How do you produce such a log? 
> appears to me as an output of some logging tool (not sure which one)

Do you have access to an OSX system? You can use lldb, you know...

$ ulimit -c unlimited

$ cc -g forksigaltstack.c -o forksigaltstack 

$ ./forksigaltstack

status = 132 

$ ls -l /cores/core*  # see which one was the last
$ lldb -c /cores/core.663 

(and you'll see that you get a stack overflow at line 18 of your code...)

By the way, it's status 132 here, not 4

$ uname -a

Darwin Dimas-MacBook-Air.local 17.4.0 Darwin Kernel Version 17.4.0: Sun Dec 
17 09:19:54 PST 2017; root:xnu-4570.41.2~1/RELEASE_X86_64 x86_64

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