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Date: Fri, 17 Mar 2023 07:50:41 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Eric Biggers <ebiggers@...nel.org> Cc: kernel test robot <yujie.liu@...el.com>, Kees Cook <keescook@...omium.org>, oe-lkp@...ts.linux.dev, lkp@...el.com, Petr Mladek <pmladek@...e.com>, Andrew Morton <akpm@...ux-foundation.org>, tangmeng <tangmeng@...ontech.com>, "Guilherme G. Piccoli" <gpiccoli@...lia.com>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Tiezhu Yang <yangtiezhu@...ngson.cn>, Luis Chamberlain <mcgrof@...nel.org>, linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org, aliyunlinux2-dev@...ux.alibaba.com, jane.lv@...el.com Subject: Re: [linux-stable-rc:linux-4.19.y] [panic] 4d00e68cfc: WARNING:at_fs/sysfs/file.c:#sysfs_emit_at On Thu, Mar 16, 2023 at 11:32:13PM -0700, Eric Biggers wrote: > 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") > > https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable-rc.git 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: > > 4.19: https://lore.kernel.org/r/20230317062743.313169-1-ebiggers@kernel.org > 4.14: https://lore.kernel.org/r/20230317062801.313217-1-ebiggers@kernel.org Thanks for these, I'll queue it up the next round. greg k-h
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