netdev - Re: [syzbot] [batman?] INFO: rcu detected stall in rtnl

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Message-ID: <000000000000ec9cb90607acdac9@google.com>
Date: Sat, 14 Oct 2023 06:07:28 -0700
From: syzbot <syzbot+afb3084a933aa2bdacc6@...kaller.appspotmail.com>
To: a@...table.cc, b.a.t.m.a.n@...ts.open-mesh.org, bpf@...r.kernel.org, 
	davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com, kuba@...nel.org, 
	kuniyu@...zon.com, linux-kernel@...r.kernel.org, mareklindner@...mailbox.ch, 
	netdev@...r.kernel.org, pabeni@...hat.com, sven@...fation.org, 
	sw@...onwunderlich.de, syzkaller-bugs@...glegroups.com, 
	vinicius.gomes@...el.com
Subject: Re: [syzbot] [batman?] INFO: rcu detected stall in rtnl_newlink (3)

syzbot suspects this issue was fixed by commit:

commit e739718444f7bf2fa3d70d101761ad83056ca628
Author: Kuniyuki Iwashima <kuniyu@...zon.com>
Date:   Sat Jul 29 00:07:05 2023 +0000

    net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15b26a4d680000
start commit:   d528014517f2 Revert ".gitignore: ignore *.cover and *.mbx"
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=d576750da57ebbb5
dashboard link: https://syzkaller.appspot.com/bug?extid=afb3084a933aa2bdacc6
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15849d08a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13184990a80000

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

#syz fix: net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX.

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