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 DD2682566F5; Wed, 18 Feb 2026 01:20:29 +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=1771377629; cv=none; b=lMDGyH+jQf1eadq2Gz1O6CevgT73z7+kuOogyzpsSAsutm0MY6x3Ck+ynX2Y1HTjeR4D3ApF9THbnfLmRuiIkdutVjKdq84uVEDFNtbiRn/HHBaxyKO5njTYg6z8kE3ZjWFQJGE7Z5mBGTz54LKruByS2nzO9WCuutUYUEFbzZ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771377629; c=relaxed/simple; bh=5HJKVWMzu30Szhzrip5v9/qgKLiQydX0FsZ9zdkx4Cw=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=ARXdW1yeIUw+JgmHThXCw4CiLPp0ZUIDXF5Y/MsPaIdtbYIHLbc9Y1Ip3GSq6JIobN2rLpI2G14Osj1Y7W3Ux3Q03ev2Go5NUhcu1RVRK8OXlgMYOGExhmTvmSrwaoruLyxqYA7UX5rbHUStXIA389bWbFXdDu3VdmLbg7L7lQw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W+AsTbqV; 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="W+AsTbqV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 947A3C4CEF7; Wed, 18 Feb 2026 01:20:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771377629; bh=5HJKVWMzu30Szhzrip5v9/qgKLiQydX0FsZ9zdkx4Cw=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=W+AsTbqVd1RLE6OLYJ+PniYU7D1LVUws1WqjU6A00PxaRkm9q9j+U84/QjH4PedSj mrmWPr9sPl3/olzksoUxvVM4X2xjMuvW32j/kM40I2o2+KzEINk+GyZL8sFgWFyVaZ YhMiMteShdLSLi+wpdC07UNPiiYLx7JiX2R3QB5DakxvTjy9lxMTsyWhdkIZpLHCnZ oHMXVzyr6EM8wv0CjmUq6W7lGesA1lwsmMLlfzLIuJ11/yD05oFtvWCTLY4JO0TwYA JP7MWlZqMiyzs1N6dklv7hQSAh1Rl6YM2Lb4jchywfFLUg1ArrYs20S0u2DxvSjm0u 3VeWPTMBICF3g== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 851203806667; Wed, 18 Feb 2026 01:20:22 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] selftests: tc_actions: don't dump 2MB of \0 to stdout From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177137762107.765825.9932056227407403951.git-patchwork-notify@kernel.org> Date: Wed, 18 Feb 2026 01:20:21 +0000 References: <20260214035159.2119699-1-kuba@kernel.org> In-Reply-To: <20260214035159.2119699-1-kuba@kernel.org> To: Jakub Kicinski Cc: davem@davemloft.net, netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, shuah@kernel.org, marcelo.leitner@gmail.com, jhs@mojatatu.com, dcaratti@redhat.com, linux-kselftest@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Fri, 13 Feb 2026 19:51:59 -0800 you wrote: > Since we started running selftests in NIPA we have been seeing > tc_actions.sh generate a soft lockup warning on ~20% of the runs. > On the pre-netdev foundation setup it was actually a missed irq > splat from the console. Now it's either that or a lockup. > > I initially suspected a socket locking issue since the test > is exercising local loopback with act_mirred. > After hours of staring at this I noticed in strace that ncat > when -o $file is specified _both_ saves the output to the file > and still prints it to stdout. Because the file being sent > is constructed with: > > [...] Here is the summary with links: - [net] selftests: tc_actions: don't dump 2MB of \0 to stdout https://git.kernel.org/netdev/net/c/32b70e62034a You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html