syzbot has bisected this bug to:

commit 96e5da7c842424bcf64afe1082b960b42b96190b Author: Dmitry Osipenko digetx@gmail.com Date: Sun Oct 21 18:30:52 2018 +0000

memory: tegra: Introduce Tegra20 EMC driver

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14450b93200000 start commit: 28e8c4bc Merge tag 'rtc-4.21' of git://git.kernel.org/pub/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=16450b93200000 console output: https://syzkaller.appspot.com/x/log.txt?x=12450b93200000 kernel config: https://syzkaller.appspot.com/x/.config?x=c2ab9708c613a224 dashboard link: https://syzkaller.appspot.com/bug?extid=979ffc89b87309b1b94b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17a93c4b400000

Reported-by: syzbot+979ffc89b87309b1b94b@syzkaller.appspotmail.com Fixes: 96e5da7c8424 ("memory: tegra: Introduce Tegra20 EMC driver")

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