From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5D5E882868 for ; Wed, 31 Jan 2024 17:20:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706721658; cv=none; b=e62VW5bWE+EX9pELREjFcxPtZTW+nbZx4RgtsN8Iv3oqNZujiEv5VpndIhr4lX6LrCsWWUSkFnmS9nBPjRmwYw0YS9dTsGVO5BKqvdd9AoKOni7xBUx9fVCet4Bnb7D4duiIbyC+z6WXQsHac512j3ZzPeEscuFD9cTtPrXvLz4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706721658; c=relaxed/simple; bh=P6mPokena7rpJUjxgtc6u9gmV8r7KA8B1UKtbAHeQ7k=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=l56v770Nc4q8crxhMKF24LevPKkxFxLwbAhswyH6mrwOtChq/9acm1s62ezPcgmYvHqpwNC6rfOBFFjtk1HNYeAF3WfPVCjwB+wW8q3BIM0F+DBzUCIlSUpSs8Zn7VeMb7mcSZuuq6YJjnEf/BLIrdDtP0UPm3bJQZo5BWz8ihI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KUHS2kxy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KUHS2kxy" Received: by smtp.kernel.org (Postfix) with ESMTPS id C2FB4C43390; Wed, 31 Jan 2024 17:20:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706721657; bh=P6mPokena7rpJUjxgtc6u9gmV8r7KA8B1UKtbAHeQ7k=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=KUHS2kxyrDregLnNLomGMAnLlZ99t+qYf0z1EXUXF5LHGoAPM9xr/jlg5bnNY4dD1 XkNKkj0g3q5ASXgjTJXWO9DzIZV7rjOvsKO4NPqJVBzWZh1TXJeE6pGA7guoNYGtK4 LEm+VmYa39Jvrb2Q7WMglQ2TeAdkHPo/4OFO6FFg+bE7quAbdIO1TYBPb4z0CUglbS I+adUMdaGP9PC2YYWCTRGLwWOGkEpFPrL7S+Ll3ALRu/KEVXX488WEP1QtzuVA9tTy nqpLzgG9sf53eMwr6Nm5gXVx3h281dJLYgnZ4m9/hE3tmwCk2HQJssIvL1DbsBaOnW qFEwgLTmkSS+A== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id A7381E3237F; Wed, 31 Jan 2024 17:20:57 +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: disable IPv6 for lwt_redirect test From: patchwork-bot+netdevbpf@kernel.org Message-Id: <170672165768.1687.6411276826226071550.git-patchwork-notify@kernel.org> Date: Wed, 31 Jan 2024 17:20:57 +0000 References: <20240131053212.2247527-1-chantr4@gmail.com> In-Reply-To: <20240131053212.2247527-1-chantr4@gmail.com> To: Manu Bretelle Cc: bpf@vger.kernel.org, andrii@kernel.org, daniel@iogearbox.net, ast@kernel.org, martin.lau@linux.dev, song@kernel.org, eddyz87@gmail.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, yan@cloudflare.com Hello: This patch was applied to bpf/bpf-next.git (master) by Andrii Nakryiko : On Tue, 30 Jan 2024 21:32:12 -0800 you wrote: > After a recent change in the vmtest runner, this test started failing > sporadically. > > Investigation showed that this test was subject to race condition which > got exacerbated after the vm runner change. The symptoms being that the > logic that waited for an ICMPv4 packet is naive and will break if 5 or > more non-ICMPv4 packets make it to tap0. > When ICMPv6 is enabled, the kernel will generate traffic such as ICMPv6 > router solicitation... > On a system with good performance, the expected ICMPv4 packet would very > likely make it to the network interface promptly, but on a system with > poor performance, those "guarantees" do not hold true anymore. > > [...] Here is the summary with links: - [bpf-next] selftests/bpf: disable IPv6 for lwt_redirect test https://git.kernel.org/bpf/bpf-next/c/2ef61296d284 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html