linux-kernel - Re: WARNING in port

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Date:   Mon, 01 Apr 2019 00:58:01 -0700
From:   syzbot <syzbot+e4c8abb920efa77bace9@...kaller.appspotmail.com>
To:     alsa-devel-bounces@...a-project.org, alsa-devel@...a-project.org,
        colin.king@...onical.com, linux-kernel@...r.kernel.org,
        mingo@...hat.com, paulmck@...ux.vnet.ibm.com, perex@...ex.cz,
        rostedt@...dmis.org, syzkaller-bugs@...glegroups.com,
        tiwai@...e.com
Subject: Re: WARNING in port_delete

syzbot has bisected this bug to:

commit 63d86a7e85f84b8ac3b2f394570965aedbb03787
Author: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Date:   Tue May 1 20:08:46 2018 +0000

     rcu: Convert rcu_grace_period_init tracepoint to gp_seq

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17f86d2f200000
start commit:   091a1eaa Merge branch 'akpm'
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=14046d2f200000
console output: https://syzkaller.appspot.com/x/log.txt?x=10046d2f200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c0af03fe452b65fb
dashboard link: https://syzkaller.appspot.com/bug?extid=e4c8abb920efa77bace9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=102e2c91400000

Reported-by: syzbot+e4c8abb920efa77bace9@...kaller.appspotmail.com
Fixes: 63d86a7e85f8 ("rcu: Convert rcu_grace_period_init tracepoint to  
gp_seq")

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