Oleksandr Pavlyk <oleksandr.pav...@intel.com> added the comment:

So where getauxval(AT_MINSIGSTKSZ) < SIGSTKSZ the merged changes actually 
resulted in decrease of the allocated signal deliver stack. 

On Sapphire Rapids due to tile registers size we have getauxval(AT_MINSIGSTKSZ) 
> SIGSTKSZ.

This is why the initial proposal was to use SIGSTKSZ + 
max(getauxval(AT_MINSIGSTKSZ), SIGSTKSZ).

I suppose, ultimately I am saying that we should check that bpo-21131 does not 
regress.

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue46968>
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