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From: Jakub Kicinski <kuba@kernel.org>
To: Eric Dumazet <edumazet@google.com>
Cc: syzbot <syzbot+90fd70a665715bd10258@syzkaller.appspotmail.com>,
	davem@davemloft.net, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, pabeni@redhat.com,
	syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] INFO: task hung in nsim_create (2)
Date: Wed, 24 Jul 2024 19:58:22 -0700	[thread overview]
Message-ID: <20240724195822.6f0388f1@kernel.org> (raw)
In-Reply-To: <CANn89iK3061x4Q9XA_uUHvTsfeVXSOFVpFBNh1jG8=ZSG+1eag@mail.gmail.com>

On Wed, 24 Jul 2024 20:28:09 +0200 Eric Dumazet wrote:
> The fact that netdevsim uses a sysfs file to add/delete netdevice
> seems unfortunate,

Let me not point fingers but agreed, and the original implementation
didn't :)

> because of the classical sysfs vs rtnl issue (see rtnl_trylock() calls
> in net/core/net-sysfs.c for reference)

Is that any different than binding a physical device via sysfs?
Modules have "bind" and "unbind" files, which lead to probe/remove
AFAIU completely inline.

      parent reply	other threads:[~2024-07-25  2:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-24 18:05 [syzbot] [net?] INFO: task hung in nsim_create (2) syzbot
2024-07-24 18:28 ` Eric Dumazet
2024-07-24 21:39   ` David Wei
2024-07-25  8:30     ` Eric Dumazet
2024-07-25  2:58   ` Jakub Kicinski [this message]

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