From: Maxime Chevallier <maxime.chevallier@bootlin.com>
To: Eric Dumazet <edumazet@google.com>
Cc: syzbot <syzbot+e9ed4e4368d450c8f9db@syzkaller.appspotmail.com>,
christophe.leroy@csgroup.eu, davem@davemloft.net,
kuba@kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, pabeni@redhat.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] WARNING: refcount bug in ethnl_phy_done
Date: Wed, 11 Sep 2024 13:40:51 +0200 [thread overview]
Message-ID: <20240911134051.7c3ad4a3@fedora.home> (raw)
In-Reply-To: <CANn89iJBFiHzMPCXyDB4=MAvE0OY5izFUzHxb3cnRzTRr=M3yA@mail.gmail.com>
Hi Eric,
On Wed, 11 Sep 2024 12:08:36 +0200
Eric Dumazet <edumazet@google.com> wrote:
> > I'm currently investigating this. I couldn't reproduce it though, even
> > with the C reproducer, although this was on an arm64 box. I'll give it
> > a try on x86_64 with the provided .config, see if I can figure out
> > what's going on, as it looks like the ethnl_phy_start() doesn't get
> > called.
>
> Make sure to have in your .config
>
> CONFIG_REF_TRACKER=y
> CONFIG_NET_DEV_REFCNT_TRACKER=y
> CONFIG_NET_NS_REFCNT_TRACKER=y
Good point, I now reproduce the issue indeed. Thanks a lot for the tips,
Maxime
next prev parent reply other threads:[~2024-09-11 11:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-11 8:00 [syzbot] [net?] WARNING: refcount bug in ethnl_phy_done syzbot
2024-09-11 10:04 ` Maxime Chevallier
2024-09-11 10:08 ` Eric Dumazet
2024-09-11 11:40 ` Maxime Chevallier [this message]
2024-09-13 8:07 ` [PATCH net-next] net: ethtool: phy: Distinguish whether dev is got by phy start or doit Lizhi Xu
2024-09-13 11:44 ` Simon Horman
2024-09-13 11:51 ` Maxime Chevallier
2024-09-16 7:38 ` Dan Carpenter
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