Re: [PATCH] x86/debug: Remove perpetually broken, unmaintainable dwarf annotations

From: Ingo Molnar
Date: Thu May 28 2015 - 09:17:58 EST



* Jan Beulich <JBeulich@xxxxxxxx> wrote:

> > and meanwhile you can keep a revert of this patch ported to SUSE kernels in
> > whatever fashion you prefer.
>
> Funny suggestion - I don't think that's reasonable for us to do. Or if we were
> to, we could as well invest in doing the re-work you're asking for; I don't
> think anyone will have the time to do either.

That's fair enough: if there's not enough resources to keep a feature maintainable
upstream then it should not be upstream in that form.

This isn't just some driver we can let bit-rot in peace until it finds a
maintainer (or not), without affecting anyone but users of that driver.

This is hundreds of usage sites of ugly code intermixed with critical pieces of
assembly code that negatively affects the hackability of everything.

Also, with the feature missing completely, maybe someone finds a method to
introduce it in a maintainable fashion, while with the feature included upstream
there's very little pressure to do that. As a bonus we'd also win a workable dwarf
unwinder.

Thanks,

Ingo
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