From: Klara Modin <klarasmodin@gmail.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>,
"Kaplan, David" <David.Kaplan@amd.com>,
Ingo Molnar <mingo@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"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>
Subject: Re: [PATCH -v2] x86/retpoline: Ensure default return thunk isn't used at runtime
Date: Thu, 4 Apr 2024 00:25:42 +0200 [thread overview]
Message-ID: <edefa2e5-c320-4021-bf8c-c6b1adf87441@gmail.com> (raw)
In-Reply-To: <20240403204113.GLZg2-6f0nH0Ne9CQt@fat_crate.local>
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.
next prev parent reply other threads:[~2024-04-03 22:25 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-10 17:10 [PATCH 0/3] " David Kaplan
2023-10-10 17:10 ` [PATCH 1/3] Revert "x86/retpoline: Remove .text..__x86.return_thunk section" David Kaplan
2023-10-10 17:48 ` Peter Zijlstra
2023-10-10 19:57 ` Josh Poimboeuf
2023-10-10 20:04 ` Borislav Petkov
2023-10-10 20:19 ` Josh Poimboeuf
2023-10-10 20:40 ` Kaplan, David
2023-10-10 21:22 ` Josh Poimboeuf
2023-10-11 7:41 ` Peter Zijlstra
2023-10-11 9:34 ` Borislav Petkov
2023-10-11 16:28 ` Josh Poimboeuf
2023-10-11 22:35 ` Peter Zijlstra
2023-10-11 22:42 ` Ingo Molnar
2023-10-12 2:27 ` Josh Poimboeuf
2023-10-12 2:47 ` [PATCH v2] objtool: Fix return thunk patching in retpolines Josh Poimboeuf
2023-10-12 6:25 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-10-12 8:16 ` [PATCH v2] " Peter Zijlstra
2023-10-12 17:50 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-10-12 8:16 ` [PATCH 1/3] Revert "x86/retpoline: Remove .text..__x86.return_thunk section" Peter Zijlstra
2023-10-10 17:10 ` [PATCH 2/3] x86/vdso: Run objtool on vdso32-setup David Kaplan
2023-10-12 17:50 ` [tip: x86/bugs] x86/vdso: Run objtool on vdso32-setup.o tip-bot2 for David Kaplan
2023-10-20 11:37 ` tip-bot2 for David Kaplan
2023-10-10 17:10 ` [PATCH 3/3] x86/retpoline: Ensure default return thunk isn't used at runtime David Kaplan
2023-10-10 19:36 ` Josh Poimboeuf
2023-10-10 20:14 ` Kaplan, David
2023-10-10 20:41 ` Josh Poimboeuf
2023-10-12 14:10 ` [PATCH -v2] " Borislav Petkov
2023-10-12 17:11 ` Josh Poimboeuf
2023-10-12 17:50 ` [tip: x86/bugs] " tip-bot2 for David Kaplan
2023-10-16 21:10 ` Nathan Chancellor
2023-10-16 21:29 ` Borislav Petkov
2023-10-16 21:48 ` Nathan Chancellor
2023-10-17 4:31 ` Kaplan, David
2023-10-17 5:28 ` Josh Poimboeuf
2023-10-17 13:54 ` Kaplan, David
2023-10-17 15:24 ` Nick Desaulniers
2023-10-17 15:26 ` Marco Elver
2023-10-17 15:32 ` Nathan Chancellor
2023-10-17 16:59 ` [PATCH] x86/srso: Fix panic in return thunk during boot Josh Poimboeuf
2023-10-17 17:52 ` [tip: x86/bugs] x86/retpoline: Make sure there are no unconverted return thunks due to KCSAN tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-10-18 13:23 ` [tip: x86/bugs] x86/retpoline: Ensure default return thunk isn't used at runtime Borislav Petkov
2023-10-18 13:38 ` Ingo Molnar
2023-10-18 15:12 ` Borislav Petkov
2023-10-18 15:54 ` Josh Poimboeuf
2023-10-18 17:55 ` Borislav Petkov
2023-10-18 18:14 ` Josh Poimboeuf
2023-10-18 18:22 ` Borislav Petkov
2023-10-18 18:39 ` Josh Poimboeuf
2023-10-18 18:44 ` Borislav Petkov
2023-10-18 19:14 ` Josh Poimboeuf
2023-10-18 20:04 ` Borislav Petkov
2023-10-18 20:37 ` Borislav Petkov
2023-10-19 6:35 ` Josh Poimboeuf
2023-10-19 6:59 ` Josh Poimboeuf
2023-10-19 14:15 ` Borislav Petkov
2023-10-19 14:21 ` Kaplan, David
2023-10-19 14:39 ` Borislav Petkov
2023-10-19 15:20 ` Josh Poimboeuf
2023-10-24 20:19 ` Borislav Petkov
2024-01-03 18:46 ` Borislav Petkov
2024-01-04 13:12 ` Borislav Petkov
2024-01-04 13:24 ` [PATCH -v2] " Borislav Petkov
2024-01-04 13:26 ` Borislav Petkov
2024-02-07 17:50 ` Josh Poimboeuf
2024-02-07 18:53 ` Borislav Petkov
2024-02-07 19:49 ` Josh Poimboeuf
2024-02-12 10:43 ` Borislav Petkov
2024-04-03 17:10 ` Klara Modin
2024-04-03 17:30 ` Borislav Petkov
2024-04-03 20:26 ` Klara Modin
2024-04-03 20:41 ` Borislav Petkov
2024-04-03 22:25 ` Klara Modin [this message]
2024-04-04 14:44 ` Borislav Petkov
2024-04-16 9:27 ` Borislav Petkov
2024-04-17 3:59 ` Klara Modin
2024-04-17 16:20 ` [tip: x86/urgent] x86/retpolines: Enable the default thunk warning only on relevant configs tip-bot2 for Borislav Petkov (AMD)
2023-10-19 7:43 ` [tip: x86/bugs] x86/retpoline: Ensure default return thunk isn't used at runtime Peter Zijlstra
2023-10-19 9:40 ` [tip: x86/bugs] Revert "x86/retpoline: Remove .text..__x86.return_thunk section" tip-bot2 for Borislav Petkov (AMD)
2023-10-19 9:40 ` [tip: x86/bugs] Revert "x86/retpoline: Ensure default return thunk isn't used at runtime" tip-bot2 for Borislav Petkov (AMD)
2024-10-04 19:37 ` Peter Zijlstra
2024-02-12 14:13 ` [tip: x86/bugs] x86/retpoline: Ensure default return thunk isn't used at runtime tip-bot2 for Josh Poimboeuf
2024-02-15 3:20 ` Nathan Chancellor
2024-02-15 8:30 ` Nikolay Borisov
2024-02-15 15:53 ` Borislav Petkov
2024-02-16 5:42 ` Josh Poimboeuf
2024-02-16 21:27 ` Borislav Petkov
2024-02-20 5:57 ` [PATCH] x86/vdso: Fix rethunk patching for vdso-image-{32,64}.o Josh Poimboeuf
2024-02-20 12:31 ` [tip: x86/core] " tip-bot2 for Josh Poimboeuf
2023-10-10 17:52 ` [PATCH 0/3] Ensure default return thunk isn't used at runtime Peter Zijlstra
2023-10-20 11:28 ` Subject: [PATCH] x86/retpoline: Document some thunk handling aspects (was: Re: [PATCH 0/3] Ensure default return thunk isn't used at runtime) Borislav Petkov
2023-10-20 11:37 ` [tip: x86/bugs] x86/retpoline: Document some thunk handling aspects tip-bot2 for Borislav Petkov (AMD)
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