syzbot has bisected this bug to: commit e42940e8559c8bbffa8286cc78067c75eb42b374 Author: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Date: Tue May 7 01:03:30 2019 +0000 Merge remote-tracking branch 'rdma/for-next' bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1746b4e8a00000 start commit: 00c3bc00 Add linux-next specific files for 20190507 git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=14c6b4e8a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10c6b4e8a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=63cd766601c6c9fc dashboard link: https://syzkaller.appspot.com/bug?extid=f14868630901fc6151d3 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10fcf758a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1202ffa4a00000 Reported-by: syzbot+f14868630901fc6151d3@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: e42940e8559c ("Merge remote-tracking branch 'rdma/for-next'") For information about bisection process see: https://goo.gl/tpsmEJ#bisection