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 A87F12DF13A for ; Sat, 28 Feb 2026 16:10:07 +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=1772295007; cv=none; b=Gd+23jINsYpE3wluum+katZcdxdppOMFMJn4YDr6gwviRnwLMo4SP/tWWG140ACFlE/7LvKtRK5M1S2ZmZ2CVNA3ee4JZKZ4PaDLxBSnKvSuDyuZpXz0i8e5BFj/WgRk+O7FYVo+lWZjT805ZwFrlRwrNRlBqpH4m7pwxWqdiPY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772295007; c=relaxed/simple; bh=3q6VnWEGpqeT1gD3SD4cpg14ng3Z83M02t3qbv3azbU=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=FKq5BzrnE9dY4f+JEoUh1pqXGimEaSe2GTutJ6S9FkHWCI05YlpsNl9kVN7vf7NIqq5WQRSEa+O8pnIO7cv5pNLp7hquvxNUQ/GFmH6CFbeOLSswiz8g13hp/ERztBDij+7CHlIm5SQyNqGxritP8XPhzlrZENONP0VYbsEGRVM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qnkVKMTk; 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="qnkVKMTk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B06EC116D0; Sat, 28 Feb 2026 16:10:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772295007; bh=3q6VnWEGpqeT1gD3SD4cpg14ng3Z83M02t3qbv3azbU=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=qnkVKMTkvwRApC0kdcTyLBzasY427ssupCCBAX1fIbuqSVp8exUy8ryXa+VMMHNTh hqlGqxySaEMqJpyaO1qScg2dM+JHAUS47+tr8QDRep2P7fL2jtLRFTsmfeY/bIhabK SEgJ/81tlj0G3Wlzastg75srVLSwBgAsPuhnLusutQ+oOqJ0CFebJX+5wuORELzAZ2 AWyntdVgrIbgk9ORU5dgjEnbDO+7wTv3PlByiE0IE3wydS2p0Nz8qvfJmdH8pXtEPq hLHMF6vRCGC32UWmRSvUTqq3hC0PYqXG+2ToqkNLrGVsE1w3AvgOXmWYl2FqdV2ChV xyTNkeKz80aFw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 02C6A39F2021; Sat, 28 Feb 2026 16:10:12 +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] tcp: give up on stronger sk_rcvbuf checks (for now) From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177229501054.3006106.4630039623073191994.git-patchwork-notify@kernel.org> Date: Sat, 28 Feb 2026 16:10:10 +0000 References: <20260227003359.2391017-1-kuba@kernel.org> In-Reply-To: <20260227003359.2391017-1-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, ncardwell@google.com, kuniyu@google.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 26 Feb 2026 16:33:59 -0800 you wrote: > We hit another corner case which leads to TcpExtTCPRcvQDrop > > Connections which send RPCs in the 20-80kB range over loopback > experience spurious drops. The exact conditions for most of > the drops I investigated are that: > - socket exchanged >1MB of data so its not completely fresh > - rcvbuf is around 128kB (default, hasn't grown) > - there is ~60kB of data in rcvq > - skb > 64kB arrives > > [...] Here is the summary with links: - [net] tcp: give up on stronger sk_rcvbuf checks (for now) https://git.kernel.org/netdev/net/c/026dfef287c0 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html