Re: [PATCH -v2] x86/retpoline: Ensure default return thunk isn't used at runtime
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- Subject: Re: [PATCH -v2] x86/retpoline: Ensure default return thunk isn't used at runtime
- From: Borislav Petkov <bp@xxxxxxxxx>
- Date: Thu, 4 Apr 2024 16:44:00 +0200
- Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, "Kaplan, David" <David.Kaplan@xxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>, "Peter Zijlstra (Intel)" <peterz@xxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, David Howells <dhowells@xxxxxxxxxx>
- In-reply-to: <edefa2e5-c320-4021-bf8c-c6b1adf87441@gmail.com>
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On Thu, Apr 04, 2024 at 12:25:42AM +0200, Klara Modin wrote:
> All the more reason to continue then, even if only for nostalgia ;)
Here's an argument for you: please save the environment by using only
64-bit hw. :-P
> 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.
That's good.
What you could also do is build random configs on linux-next - "make
randconfig" - and see if you catch something weird there. And maybe then
try to boot them in a VM and see what explodes.
In general, testing linux-next is a very good idea because it helps us
catch crap early and fix it before it hits the official releases.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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