linux-kernel - Re: [btrfs] 0f80799866: WARNING:at_fs/sysfs/file.c:#sysfs

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Message-ID: <20211021160648.GD20319@twin.jikos.cz>
Date:   Thu, 21 Oct 2021 18:06:48 +0200
From:   David Sterba <dsterba@...e.cz>
To:     kernel test robot <oliver.sang@...el.com>
Cc:     Anand Jain <anand.jain@...cle.com>, 0day robot <lkp@...el.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        linux-btrfs@...r.kernel.org, dsterba@...e.com
Subject: Re: [btrfs]  0f80799866: WARNING:at_fs/sysfs/file.c:#sysfs_emit

On Thu, Oct 21, 2021 at 09:35:38PM +0800, kernel test robot wrote:
> 
> 
> Greeting,
> 
> FYI, we noticed the following commit (built with gcc-9):
> 
> commit: 0f807998661ecadb74638c18cbaff8785bb46f8d ("[PATCH 1/2] btrfs: sysfs convert scnprintf and snprintf to use sysfs_emit")
> url: https://github.com/0day-ci/linux/commits/Anand-Jain/provide-fsid-in-sysfs-devinfo/20211019-082356
> base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
> 
> in testcase: boot
> 
> on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

I wonder if it's related to the 32bit host, I don't see any crash.