Re: [syzbot] [ext4?] WARNING in ext4_iomap_begin (2)

[syzbot]

syzbot has bisected this issue to:

commit 310ee0902b8d9d0a13a5a13e94688a5863fa29c2
Author: Brian Foster <bfoster@xxxxxxxxxx>
Date:   Tue Mar 14 13:07:59 2023 +0000

    ext4: allow concurrent unaligned dio overwrites

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10a8442a680000
start commit:   9ed22ae6be81 Merge tag 'spi-fix-v6.6-rc3' of git://git.ker..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=12a8442a680000
console output: https://syzkaller.appspot.com/x/log.txt?x=14a8442a680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=12da82ece7bf46f9
dashboard link: https://syzkaller.appspot.com/bug?extid=307da6ca5cb0d01d581a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15eb672e680000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16219bc6680000

Reported-by: syzbot+307da6ca5cb0d01d581a@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 310ee0902b8d ("ext4: allow concurrent unaligned dio overwrites")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection