From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B00A2F8E84 for ; Thu, 17 Sep 2026 03:51:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789617071; cv=none; b=GPwD9xckkWUtHhu8M6rYu7Rlbtu+uiqSpA9HN/EHudIjC+asJfoqeAbiw1ay9gcJYQOdnURYdV/WaV2g4oomUL0WvNOI5HEdLDIwZQAX2wEDZDbH1GkjKTFcKwSe0nDzqa/RIklDB47hD1KBEqTc5LevxSbE6RyBg1ZCSeokhMg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789617071; c=relaxed/simple; bh=s5v6awWIPELX6QhhFlFGKGNIWNtnnS0mtklI4o0fM+A=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=VJcyeY5vg/QT21WRX47pRb0CS2IWxV0vV8I2NB4yEyzaU6roZZSRVpwx95yKRuoDIoXR+mI+qOAtd6Ci6G2EU0GR5+HPNYjbEHLA2lgitKdmTQi6n6Bv9iYyJd7twzsNRtpd/6HiU68p3Nexdcv3m7lLs2GXUt/v4z5haz5GgBA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OjIiBTlT; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OjIiBTlT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 146851F000FF; Thu, 17 Sep 2026 03:51:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789617070; bh=Y/55b/ze4/oBEW2XUcpCXpOsM2Lh4YRbHA0mqN71xSU=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=OjIiBTlTtWQXpYZV8bMOcwMprOSAZSyANHaG/Cg+KlW/mPhfjFz04mRDRMlXsKF0u LjaIOWZ+ApMUrUEiEbBIK/gawpfWS2HDaYkqksgWJ9emjpPTk6eL8OvfqrSxac2HJi mtz03I4mKPVxA6zcxbSRTg/4gvxbvyUPBzxhplaJGUpNIWk5V69dFmcOgWEL2UjqQN 4SFSv6v0CJPxyjZ04SE0oWXp1idbvqe5j/Ti7fR/y7eQ55et/vq4NST+m/EJaczj5H VLk8X+Eax1mSy7uVXMTMmI7ZkxzCH0LzR3ToTu68VHlYoRE4PWSUWrLNTgn30ZyjbF Jxg3IlvsVDb1w== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 1987D39E961A; Thu, 17 Sep 2026 03:50:05 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH bpf-next] selftests/bpf: Wait for links to come up in lwt_ip_encap From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178961700389.3406053.3788671897663360059.git-patchwork-notify@kernel.org> Date: Thu, 17 Sep 2026 03:50:03 +0000 References: <20260916232407.764886-1-alexei.starovoitov@gmail.com> In-Reply-To: <20260916232407.764886-1-alexei.starovoitov@gmail.com> To: Alexei Starovoitov Cc: bpf@vger.kernel.org, daniel@iogearbox.net, andrii@kernel.org, eddyz87@gmail.com, bastien.curutchet@bootlin.com, ast@kernel.org Hello: This patch was applied to bpf/bpf-next.git (master) by Alexei Starovoitov : On Wed, 16 Sep 2026 23:24:07 +0000 you wrote: > From: Alexei Starovoitov > > lwt_ip_encap creates three fresh netns with veth pairs across them and > then immediately pings over IPv6. The peer ends of the first veth pair > end up with the same ifindex in their respective netns, so linkwatch > does not treat the carrier-on as urgent and may deliver NETDEV_CHANGE up > to one second later. Until that happens addrconf considers the link not > ready: no ff00::/8 multicast route and no link-local address are > installed, and the neighbour solicitation for the next hop is dropped > as a no-route packet. The NS retransmit a second later succeeds, but > ping -W1 has already given up: > > [...] Here is the summary with links: - [bpf-next] selftests/bpf: Wait for links to come up in lwt_ip_encap https://git.kernel.org/bpf/bpf-next/c/71b75648d1a2 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html