Re: [syzbot] [mm?] INFO: task hung in hugetlb_fault

[syzbot]

syzbot has bisected this issue to:

commit 3db978d480e2843979a2b56f2f7da726f2b295b2
Author: Vlastimil Babka <vbabka@xxxxxxx>
Date:   Mon Jun 8 04:40:24 2020 +0000

    kernel/sysctl: support setting sysctl parameters from kernel command line

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1499efd0580000
start commit:   87d6aab2389e Merge tag 'for_linus' of git://git.kernel.org..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1699efd0580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1299efd0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=fb6ea01107fa96bd
dashboard link: https://syzkaller.appspot.com/bug?extid=7bb5e48f6ead66c72906
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17dd6327980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16d24f9f980000

Reported-by: syzbot+7bb5e48f6ead66c72906@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 3db978d480e2 ("kernel/sysctl: support setting sysctl parameters from kernel command line")

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