syzbot has bisected this bug to:
commit af49a63e101eb62376cc1d6bd25b97eb8c691d54
Author: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Date: Sat May 21 00:03:33 2016 +0000
radix-tree: change naming conventions in radix_tree_shrink
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=176528c8600000
start commit: c6dd78fc Merge branch 'x86-urgent-for-linus' of git://git...
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=14e528c8600000
console output: https://syzkaller.appspot.com/x/log.txt?x=10e528c8600000
kernel config: https://syzkaller.appspot.com/x/.config?x=8de7d700ea5ac607
dashboard link: https://syzkaller.appspot.com/bug?extid=5134cdf021c4ed5aaa5f
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145df0c8600000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=170001f4600000
Reported-by: syzbot+5134cdf021c4ed5aaa5f@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: af49a63e101e ("radix-tree: change naming conventions in
radix_tree_shrink")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
