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Date: Sun, 28 Jan 2018 10:33:35 -0800
From: Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 20/21] Kbuild, lto: Add Link Time Optimization support
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To: Arnd Bergmann <arnd@arndb.de>
Cc: Andi Kleen <andi@firstfloor.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, the arch/x86 maintainers <x86@kernel.org>, samitolvanen@google.com, alxmtvv@gmail.com, Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>, Masahiro Yamada <yamada.masahiro@socionext.com>, Andrew Morton <akpm@linux-foundation.org>

> 
> kallsyms failure: relative symbol value 0xffffffff81000000 out of
> range in relative mode
> 
> I seem to get that all the time here, and have also disabled it for now,
> but it sounds important (and breaks the build).

Need to take a look at it. 

I had some patches that completely revamped kallsyms as part of the single
pass linking, but I dropped them again because they still had too many 
issues.

-Andi