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Date: Mon, 11 Apr 2022 10:03:13 +0200
From: Arnd Bergmann <>
Cc: Christian Brauner <>
Subject: Re: Re: add loongarch64 port

On Sun, Apr 10, 2022 at 5:27 PM Rich Felker <> wrote:
> On Sun, Apr 10, 2022 at 12:30:59PM +0200, Arnd Bergmann wrote:
> > On Sat, Apr 9, 2022 at 3:31 PM Rich Felker <> wrote:
> > >
> > > Actually, if there aren't yet archs lacking SYS_clone, this API
> > > regression may be a good argument not to drop SYS_clone on new archs
> > > yet until there's a way for new archs to get the same behavior
> > > (unspecified stack size).
> >
> > That is a good point, but it also appears that the behavior of
> > clone3() is unintentional
> > here, I'm fairly sure it was meant to be a drop-in replacement for clone() with
> > additional features.
> >
> > Not sure what the best fix for this is, as the check for size==0 was clearly
> > intentional, but seems to prevent this from working. A special flag to ignore
> > the size, or a magic size value like -1ull might work, but neither of them
> > is a great interface.
> Are there archs already affected, or will this one be the first?

We have not added any other architectures since clone3 got added,
so this is the first one.


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