netdev - Re: INFO: task hung in vhost_net_stop

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Message-ID: <0000000000008ee87005847fc985@google.com>
Date:   Tue, 19 Mar 2019 22:21:00 -0700
From:   syzbot <syzbot+d21e6e297322a900c128@...kaller.appspotmail.com>
To:     jasowang@...hat.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, mst@...hat.com,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        virtualization@...ts.linux-foundation.org, weiyj.lk@...il.com
Subject: Re: INFO: task hung in vhost_net_stop_vq

syzbot has bisected this bug to:

commit 6b1e6cc7855b09a0a9bfa1d9f30172ba366f161c
Author: Jason Wang <jasowang@...hat.com>
Date:   Thu Jun 23 06:04:32 2016 +0000

     vhost: new device IOTLB API

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1486ad27200000
start commit:   6b1e6cc7 vhost: new device IOTLB API
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1686ad27200000
console output: https://syzkaller.appspot.com/x/log.txt?x=1286ad27200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c94f9f0c0363db4b
dashboard link: https://syzkaller.appspot.com/bug?extid=d21e6e297322a900c128
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=141db34d400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=108ef293400000

Reported-by: syzbot+d21e6e297322a900c128@...kaller.appspotmail.com
Fixes: 6b1e6cc7 ("vhost: new device IOTLB API")