[Bug libc/31394] clone on sparc might fail with -EFAULT for no valid reason

[glaubitz at physik dot fu-berlin.de]

https://sourceware.org/bugzilla/show_bug.cgi?id=31394

--- Comment #18 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to Adhemerval Zanella from comment #17)
> (In reply to John Paul Adrian Glaubitz from comment #16)
> > A patch has been posted on the Linux kernel mailing list which makes the
> > workaround by Michael Karcher unnecessary:
> > 
> > https://lore.kernel.org/all/c3f713a89dd406d094eae99ef95c108e779780c3.
> > camel@physik.fu-berlin.de/T/#mb548b6e4555859fad108d12d3cc80c22bf3a70ba
> 
> I don't think we can remove the workaround because we still support old
> kernels without this fix.

The fix will be backported to all LTS kernels, so I don't think there is a need
to keep the workaround in future versions of glibc.

The oldest, currently supported LTS kernel is 5.10 while glibc 2.42 requires at
least kernel version 5.4 unless I'm missing something.

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