[moderation] INFO: The task syz.NUM.NUM:LINE has been waiting for writeback completion for more than NUM seconds. (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: e2d5e23967d0 Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=159c15b9580000
kernel config: https://syzkaller.appspot.com/x/.config?x=72c97575381cec47
dashboard link: https://syzkaller.appspot.com/bug?extid=925fede3fbcac6581bee
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
userspace arch: arm64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/294cdababe04/disk-e2d5e239.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3e828c9fa51b/vmlinux-e2d5e239.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ffd7614ad310/Image-e2d5e239.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+925fed...@syzkaller.appspotmail.com

INFO: The task syz.0.6:4898 has been waiting for writeback completion for more than 141 seconds.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.


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