linux-kernel - Re: [LKP] Re: [x86/mm/64] f154f29085: BUG:kernel_reboot-without-warning_in_boot_stage

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Message-ID: <YdW3a3dUfi5pBaiH@zn.tnic>
Date:   Wed, 5 Jan 2022 16:21:15 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Yin Fengwei <fengwei.yin@...el.com>
Cc:     Marco Elver <elver@...gle.com>, Carel Si <beibei.si@...el.com>,
        Joerg Roedel <jroedel@...e.de>,
        LKML <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "lkp@...ts.01.org" <lkp@...ts.01.org>, lkp <lkp@...el.com>,
        "bfields@...ldses.org" <bfields@...ldses.org>,
        "llvm@...ts.linux.dev" <llvm@...ts.linux.dev>
Subject: Re: [LKP] Re: [x86/mm/64] f154f29085:
 BUG:kernel_reboot-without-warning_in_boot_stage - clang KCOV?

On Wed, Jan 05, 2022 at 08:47:28PM +0800, Yin Fengwei wrote:
> it's better that clang restore its behavior to clang-12.

Probably, but I'm not gonna hold my breath - folks are likely very
busy...

> Or people need to use __no_profile annotation if want to add function
> before GCOV/KASAN is initialized.

... yap, and because fixing it this way is easy, I've already queued the
__no_profile solution:

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/mm&id=b64dfcde1ca9cb82e38e573753f0c0db8fb841c2

Thanks.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette