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

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Date:   Wed, 5 Jan 2022 10:35:20 +0800
From:   Yin Fengwei <fengwei.yin@...el.com>
To:     Borislav Petkov <bp@...e.de>, Marco Elver <elver@...gle.com>
CC:     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?

Hi Boris,

On 12/21/21 11:22 PM, Borislav Petkov wrote:
> And also, I'm still waiting on clang folks to chime in on the New Pass
> Manager and whether there's a bug in clang there so that we won't need
> the __no_profile annotation at all. I mean, gcc is fine with that config
> so unless clang is doing more profiling gunk than gcc and requires that
> __llvm_gcov_init constructor... see Nathan's mail upthread.

Did you get update from clang folks for this behavior? Thanks.


Regards
Yin, Fengwei