linux-kernel - Re: WARNING in cgroup

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Message-ID: <000000000000fe103805886326ea@google.com>
Date:   Wed, 08 May 2019 09:52:00 -0700
From:   syzbot <syzbot+f14868630901fc6151d3@...kaller.appspotmail.com>
To:     alexander.h.duyck@...el.com, amritha.nambiar@...el.com,
        andriy.shevchenko@...ux.intel.com, ast@...nel.org,
        bpf@...r.kernel.org, cgroups@...r.kernel.org, daniel@...earbox.net,
        davem@...emloft.net, dmitry.torokhov@...il.com,
        f.fainelli@...il.com, guro@...com, hannes@...xchg.org,
        idosch@...lanox.com, kafai@...com, linux-kernel@...r.kernel.org,
        lizefan@...wei.com, netdev@...r.kernel.org, sfr@...b.auug.org.au,
        songliubraving@...com, syzkaller-bugs@...glegroups.com,
        tj@...nel.org, tyhicks@...onical.com, wanghai26@...wei.com,
        yhs@...com, yuehaibing@...wei.com
Subject: Re: WARNING in cgroup_exit

syzbot has bisected this bug to:

commit e42940e8559c8bbffa8286cc78067c75eb42b374
Author: Stephen Rothwell <sfr@...b.auug.org.au>
Date:   Tue May 7 01:03:30 2019 +0000

     Merge remote-tracking branch 'rdma/for-next'

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1746b4e8a00000
start commit:   00c3bc00 Add linux-next specific files for 20190507
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=14c6b4e8a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=10c6b4e8a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=63cd766601c6c9fc
dashboard link: https://syzkaller.appspot.com/bug?extid=f14868630901fc6151d3
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10fcf758a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1202ffa4a00000

Reported-by: syzbot+f14868630901fc6151d3@...kaller.appspotmail.com
Fixes: e42940e8559c ("Merge remote-tracking branch 'rdma/for-next'")

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