syzbot has bisected this bug to:
commit f75f91574617a3c6fbc821c6b156f5777a59d0ed Author: Chris Wilson chris@chris-wilson.co.uk Date: Tue May 15 14:31:49 2018 +0000
drm/i915: Shrink search list for active timelines
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=121dc6b5e00000 start commit: 90568ecf Merge tag 'kvm-5.6-2' of git://git.kernel.org/pub.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=111dc6b5e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=161dc6b5e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=69fa012479f9a62 dashboard link: https://syzkaller.appspot.com/bug?extid=ba431dd9afc3a918981a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1036b6b5e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1651f6e9e00000
Reported-by: syzbot+ba431dd9afc3a918981a@syzkaller.appspotmail.com Fixes: f75f91574617 ("drm/i915: Shrink search list for active timelines")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection