linux-kernel - Re: [syzbot] [kernel?] INFO: rcu detected stall in toggle_allocation

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Message-ID: <000000000000adbe11060657c7b6@google.com>
Date:   Wed, 27 Sep 2023 07:12:22 -0700
From:   syzbot <syzbot+52d2f6feb48dc7328968@...kaller.appspotmail.com>
To:     bp@...en8.de, dave.hansen@...ux.intel.com, davem@...emloft.net,
        hdanton@...a.com, hpa@...or.com, jhs@...atatu.com,
        linux-kernel@...r.kernel.org, mingo@...hat.com,
        netdev@...r.kernel.org, pctammela@...atatu.com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        victor@...atatu.com, vladimir.oltean@....com, x86@...nel.org
Subject: Re: [syzbot] [kernel?] INFO: rcu detected stall in toggle_allocation_gate

syzbot suspects this issue was fixed by commit:

commit da71714e359b64bd7aab3bd56ec53f307f058133
Author: Jamal Hadi Salim <jhs@...atatu.com>
Date:   Tue Aug 22 10:12:31 2023 +0000

    net/sched: fix a qdisc modification with ambiguous command request

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15dd4876680000
start commit:   950fe35831af Merge branch 'ipv6-expired-routes'
git tree:       net-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=fe63ad15dded26b6
dashboard link: https://syzkaller.appspot.com/bug?extid=52d2f6feb48dc7328968
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13d34703a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13a9a040680000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: net/sched: fix a qdisc modification with ambiguous command request

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