linux-kernel - Re: [RFC PATCH] x86/Kconfig: Fix allyesconfig

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Message-ID: <f87758bc-8298-4135-9410-34c2afa1850a@roeck-us.net>
Date: Mon, 14 Apr 2025 13:27:46 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrey Ryabinin <ryabinin.a.a@...il.com>,
 Alexander Potapenko <glider@...gle.com>,
 Andrey Konovalov <andreyknvl@...il.com>, Dmitry Vyukov <dvyukov@...gle.com>,
 Vincenzo Frascino <vincenzo.frascino@....com>, linux-kernel@...r.kernel.org,
 kasan-dev@...glegroups.com
Subject: Re: [RFC PATCH] x86/Kconfig: Fix allyesconfig

On 4/14/25 12:59, Linus Torvalds wrote:
> On Sun, 13 Apr 2025 at 18:13, Guenter Roeck <linux@...ck-us.net> wrote:
>>
>> Solve the test build problem by selectively disabling CONFIG_KASAN for
>> 'allyesconfig' build tests of 64-bit X86 builds.
> 
> I think we might as well just disable KASAN for COMPILE_TEST entirely
> - not artificially limit it to just x86-64.
> 
> Apparently it was effectively disabled anyway due to that SLUB_TINY
> interaction, so while it would be nice to have bigger build coverage,
> clearly we haven't had it before, and it causes problems.
> 

sgtm. I'll wait another day or two to give others time to provide feedback
and then send v2.

Guenter