From: Qingfang Deng <qingfang.deng@linux.dev>
To: Matthieu Baerts <matttbe@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>, Shuah Khan <shuah@kernel.org>,
linux-ppp@vger.kernel.org, netdev@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v2] selftests: net: add socat syslog for PPPoL2TP
Date: Wed, 3 Jun 2026 13:35:43 +0800 [thread overview]
Message-ID: <752224bd-bada-4729-846a-c5684de38101@linux.dev> (raw)
In-Reply-To: <8233aae4-42d4-4fac-90aa-240fadd9a39b@kernel.org>
On 2026/6/3 12:04, Matthieu Baerts wrote:
> Hi Qingfang,
> It looks like the issue happened once since this patch is being tested:
>
> https://netdev-ctrl.bots.linux.dev/logs/vmksft/net-extra/results/668501/11-pppol2tp-sh/stdout
>
> Is it enough for you to understand what's wrong and how to fix it?
Yes. Both pppd instances detected a false loopback, possibly because
they happened to use the same PRNG seed to generate the magic number.
I'll send a patch to disable this detection.
Regards,
Qingfang
next prev parent reply other threads:[~2026-06-03 5:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 2:11 [PATCH net-next v2] selftests: net: add socat syslog for PPPoL2TP Qingfang Deng
2026-05-29 3:21 ` Matthieu Baerts
2026-06-03 4:04 ` Matthieu Baerts
2026-06-03 5:35 ` Qingfang Deng [this message]
2026-06-02 18:50 ` patchwork-bot+netdevbpf
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