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From: Hengyu Liang <hengyul@cs.unc.edu>
To: netdev@vger.kernel.org
Cc: davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org,
	pabeni@redhat.com, horms@kernel.org, jchapman@katalix.com,
	tparkin@katalix.com, gnault@redhat.com
Subject: Re: [PATCH net] l2tp: only return sessions of the given tunnel in l2tp_session_get()
Date: Mon, 26 Oct 2026 04:47:16 -0400	[thread overview]
Message-ID: <20261026084716.2884624-1-hengyul@cs.unc.edu> (raw)
In-Reply-To: <179294048471.3327.7148108321076866901@kernel.org>

Hi,

I found this while comparing the behaviour of different kernel versions:
connect() on a PPPoL2TP socket for a second L2TPv3 tunnel succeeds on
v6.8 but fails with EEXIST on v6.18. I then bisected it to the IDR
session lookup series (5f77c18ea556, d18d3f0a24fc) and checked the
"ip l2tp" commands in the commit message by hand on both sides.

Thanks,
Hengyu

  reply	other threads:[~2026-10-26  8:47 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-25 14:58 [PATCH net] l2tp: only return sessions of the given tunnel in l2tp_session_get() Hengyu Liang
2026-10-25 15:01 ` netdev-bot+sinfo
2026-10-26  8:47   ` Hengyu Liang [this message]
2026-10-26 11:51 ` Guillaume Nault
2026-10-26 12:57   ` Hengyu Liang
2026-10-26 16:55     ` Guillaume Nault
2026-10-27  4:32       ` Hengyu Liang

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