linux-kernel - Re: WARNING in update_load

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Date:   Wed, 20 Mar 2019 05:55:00 -0700
From:   syzbot <syzbot+20fddccabc274e99398e@...kaller.appspotmail.com>
To:     andy.shevchenko@...il.com, bp@...en8.de, davem@...emloft.net,
        douly.fnst@...fujitsu.com, hpa@...or.com, konrad.wilk@...cle.com,
        kuznet@....inr.ac.ru, len.brown@...el.com,
        linux-kernel@...r.kernel.org, mingo@...hat.com,
        netdev@...r.kernel.org, puwen@...on.cn, rppt@...ux.vnet.ibm.com,
        sbrivio@...hat.com, sd@...asysnail.net,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        ville.syrjala@...ux.intel.com, x86@...nel.org,
        yoshfuji@...ux-ipv6.org
Subject: Re: WARNING in update_load_avg

syzbot has bisected this bug to:

commit b8a51b38e4d4dec3e379d52c0fe1a66827f7cf1e
Author: Stefano Brivio <sbrivio@...hat.com>
Date:   Thu Nov 8 11:19:23 2018 +0000

     fou, fou6: ICMP error handlers for FoU and GUE

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14a48993200000
start commit:   b8a51b38 fou, fou6: ICMP error handlers for FoU and GUE
git tree:       net-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=16a48993200000
console output: https://syzkaller.appspot.com/x/log.txt?x=12a48993200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d86f24333880b605
dashboard link: https://syzkaller.appspot.com/bug?extid=20fddccabc274e99398e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10272c5d400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=157bd093400000

Reported-by: syzbot+20fddccabc274e99398e@...kaller.appspotmail.com
Fixes: b8a51b38 ("fou, fou6: ICMP error handlers for FoU and GUE")