[PATCH 3/3] lib/core/fiber: Put watermarks into stack to track its usage

[Cyrill Gorcunov]

On Wed, Mar 13, 2019 at 05:17:24PM +0300, Vladimir Davydov wrote:
> 
> Yeah, keep track of the max recorded stack size in a static variable
> and keep advancing the higher watermark position whenever it gets
> overwritten so that we can report max stack size used:
> 
>   I> max stack size is 73728 bytes
>   ...
>   I> max stack size is 112640 bytes
> 
> (the wording might need polishing)

I see what you mean. Will try.

> > 
> > Won't they left unitialized then? The only reason I put nils here
> > is to force them have known values even if they are unused.
> 
> I'd set them to NULLs for both cases, i.e. outside ifdef.

OK