Re: [syzbot] general protection fault in iomap_dio_bio_iter

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5566 } 2654 jiffies s: 2877 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         986f457b block: convert bio_map_user_iov to use iov_it..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git iov-extract-20230207
console output: https://syzkaller.appspot.com/x/log.txt?x=1218381f480000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6bb1911ff9919df0
dashboard link: https://syzkaller.appspot.com/bug?extid=a4f579527ea6394140a5
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.