syzbot suspects this issue was fixed by commit:
commit 282ab3ff16120ec670fe3330e85f8ebf13092f21 Author: David Sterba dsterba@suse.com Date: Mon Oct 14 12:38:33 2019 +0000
btrfs: reduce compressed_bio members' types
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12d5f6f2300000 start commit: 7f75285ca572 Merge tag 'for-5.12/dm-fixes-3' of git://git... git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=b5591c832f889fd9 dashboard link: https://syzkaller.appspot.com/bug?extid=45d7c243c006f39dc55a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=164f385ad00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1427af9ad00000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: btrfs: reduce compressed_bio members' types
For information about bisection process see: https://goo.gl/tpsmEJ#bisection