Re: [PATCH] fs/select: rework stack allocation hack for clang

[Andi Kleen]

On Sun, Feb 18, 2024 at 11:29:32AM +0100, Arnd Bergmann wrote:
> On Sun, Feb 18, 2024, at 11:19, Andi Kleen wrote:
> > I suspect given the larger default stack now we could maybe just increase the
> > warning limit too, but that should be fine.
> 
> I don't think we have increased the default stack size in decades,
> it's still 8KB on almost all 32-bit architectures (sh, hexagon and m68k
> still allow 4KB stacks, but that's probably broken). I would actually
> like to (optionally) reduce the stack size for 64-bit machines
> from 16KB to 12KB now that it's always vmapped.

now == after 4/8K.

The 1024 warning limit dates back to the 4/8K times. It could
be certainly reevaluated for this decade's setup.

-Andi