syzbot has bisected this bug to:
commit 2de50e9674fc4ca3c6174b04477f69eb26b4ee31
Author: Russell Currey <ruscur@xxxxxxxxxx>
Date: Mon Feb 8 04:08:20 2016 +0000
powerpc/powernv: Remove support for p5ioc2
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16af042ae00000
start commit: 9455d25f Merge tag 'ntb-5.5' of git://github.com/jonmason/..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=15af042ae00000
console output: https://syzkaller.appspot.com/x/log.txt?x=11af042ae00000
kernel config: https://syzkaller.appspot.com/x/.config?x=7a3b8f5088d4043a
dashboard link: https://syzkaller.appspot.com/bug?extid=998dec6452146bd7a90c
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12fa5c2ee00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12e327f2e00000
Reported-by: syzbot+998dec6452146bd7a90c@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 2de50e9674fc ("powerpc/powernv: Remove support for p5ioc2")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
