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SubjectRe: [RFC] CONFIG_FORCE_MINIMALLY_SANE_CONFIG=y (was: Re: [RFC PATCH] x86/kconfig: Sanity-check config file during oldconfig)

* Kirill A. Shutemov <kirill@shutemov.name> wrote:

> On Tue, Jan 19, 2016 at 09:20:22AM +0100, Ingo Molnar wrote:
> > + select SYSFS_DEPRECATED
> ...
>
> > And yes, many of these options are members of the 'SystemD debuggability Hall Of
> > Shame'... It cost me many, many days of painful config-bisection to figure the
> > often obscure dependencies out, so we might as well upstream this information.
>
> And you've got it wrong ;)
>
> http://cgit.freedesktop.org/systemd/systemd/tree/README#n54
>
> udev will fail to work with the legacy sysfs layout:
> CONFIG_SYSFS_DEPRECATED=n

That's with new systemd. The Fedora 19 system I tested it on certainly failed in
the way I documented it.

So we now have a kernel option that breaks older SystemD if unset, and breaks
newer SystemD if set.

Bravo!

Thanks,

Ingo

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