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Date:   Thu, 16 Mar 2023 23:32:13 -0700
From:   Eric Biggers <>
To:     kernel test robot <>
Cc:     Kees Cook <>,,, Greg Kroah-Hartman <>,
        Petr Mladek <>,
        Andrew Morton <>,
        tangmeng <>,
        "Guilherme G. Piccoli" <>,
        Sebastian Andrzej Siewior <>,
        Tiezhu Yang <>,
        Luis Chamberlain <>,,,,
Subject: Re: [linux-stable-rc:linux-4.19.y] [panic] 4d00e68cfc:

On Tue, Mar 14, 2023 at 04:34:22PM +0800, kernel test robot wrote:
> Greeting,
> FYI, we noticed WARNING:at_fs/sysfs/file.c:#sysfs_emit_at due to commit (built with gcc-11):
> commit: 4d00e68cfcfd91d3a8c794d47617429a96d623ed ("panic: Expose "warn_count" to sysfs")
> linux-4.19.y

It turns out this is a longstanding bug in 4.19.y and 4.14.y caused by a bad
backport, which is not actually related to the above commit (or the patch series
that contained it) at all.  I've sent out fixes:


- Eric

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