Re: [btrfs] 0f80799866: WARNING:at_fs/sysfs/file.c:#sysfs_emit

From: David Sterba
Date: Thu Oct 21 2021 - 12:07:25 EST


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.