Re: INFO: rcu detected stall in __do_softirq

[syzbot]

syzbot has bisected this bug to:

commit 2aeac95d1a4cc85aae57ab842d5c3340df0f817f
Author: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Date:   Tue Jun 11 10:40:41 2019 +0000

    soundwire: add module_sdw_driver helper macro

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=114b45ee600000
start commit:   882e8691 Add linux-next specific files for 20190801
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=134b45ee600000
console output: https://syzkaller.appspot.com/x/log.txt?x=154b45ee600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=466b331af3f34e94
dashboard link: https://syzkaller.appspot.com/bug?extid=6593c6b8c8b66a07cd98
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16b216b2600000

Reported-by: syzbot+6593c6b8c8b66a07cd98@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 2aeac95d1a4c ("soundwire: add module_sdw_driver helper macro")

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