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Date: Thu, 4 Apr 2024 00:25:42 +0200
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Subject: Re: [PATCH -v2] x86/retpoline: Ensure default return thunk isn't used
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To: Borislav Petkov <bp@alien8.de>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>, "Kaplan, David"
 <David.Kaplan@amd.com>, Ingo Molnar <mingo@kernel.org>,
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 "linux-tip-commits@vger.kernel.org" <linux-tip-commits@vger.kernel.org>,
 "Peter Zijlstra (Intel)" <peterz@infradead.org>,
 "x86@kernel.org" <x86@kernel.org>, David Howells <dhowells@redhat.com>
References: <20240104131210.GDZZauqoeKoZGpYwDd@fat_crate.local>
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 <20240207185328.GEZcPRqPsNInRXyNMj@fat_crate.local>
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 <20240212104348.GCZcn2ZPr445KUyQ7k@fat_crate.local>
 <78e0d19c-b77a-4169-a80f-2eef91f4a1d6@gmail.com>
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 <f37a111b-f5c5-4337-8eaf-46a2c28f01da@gmail.com>
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From: Klara Modin <klarasmodin@gmail.com>
In-Reply-To: <20240403204113.GLZg2-6f0nH0Ne9CQt@fat_crate.local>
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On 2024-04-03 22:41, Borislav Petkov wrote:
> On Wed, Apr 03, 2024 at 10:26:19PM +0200, Klara Modin wrote:
>> Probably, I don't have much knowledge about this stuff. The machine can at
>> least be useful for testing still :)
> 
> I wouldn't use it if I were you as it wouldn't even justify the
> electricity wasted. No one cares about 32-bit x86 kernels anymore and we
> barely keep them alive.
> 
> It'll be a lot more helpful if you'd test 64-bit kernels on 64-bit hw.
> 
> :-)
> 
> Thx.
> 
All the more reason to continue then, even if only for nostalgia ;)

Jokes aside, I do run -next kernels regularly for my daily drivers 
(which are x86_64), but it's honestly not very often I notice bugs there 
that affect me. They have all been pretty minor or very obvious and 
would probably have been caught regardless, but I'll of course still 
report them.