From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793229007; b=gzZ62O+JaZ5MfTR/XL7gFNUUUOnr2z1vcP8oCthFr0MW71GGVbaGJ7rbeX8Nz3R1ImsJ HIcJnpFpoB+au77igOnK11Tt25UyViDJ5BFUKfKaYGisbzXbQT054fCwQVXCG7SobNhI6 0/2/8VImR107QMsd8L7y3he3I1wbE82QEgS9N2PZyXKXq/EBhfSc1ejcWglp33fti+NUl SUn2vxgz2I6ykjZ2z9yKj5hXMGuKWUiMlRqlSscQiFbeRRLF6Y9dVW19X0MTHjz1yJPN0 YQjwwABT1pQzu4RfPsv2rMy/GpeNrGWcC7nSe/bgjufH8hwu0vtkPUoPzEstXU3fn2g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793229007; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=ZOxopfCgic5R7Aeo/hqd3+pQx4C+2s3b4c+s8g5N62E=; b=J44XrhlgQWb0ID5fgXRXx91rv28Lbod5hZXlEDVQKsGNYZp31W25IGC6GwrWwhiTvVzp UEiuJHqrrc55zmb+JDQuJiSvYMszSrrOM8yCFBTOnllZ9uiQIY9cRKFfphnIYijeVRYja daDVPeW7hBQx2IRF5GNNERm2SaSPgmFfh78EM0+S7QuCln5A6aKUh5KSnIqOp5ugNns+a Ks35dymvUnyeHWHl+n6xSSFCCP6+GOZ58y6RcQP5WWsl15Ne8ouInlTkgCskGsr14/TBZ 34AzPUjMzXUzxz1bPr81PjK+GaMfBl0D/v2PNDLUTgHvYFf2a9UasAveRVYfxTgdIjA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=cMWmqGSW; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6FBEA606A327; Wed, 28 Oct 2026 23:10:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=cMWmqGSW Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11A601F01829; Wed, 28 Oct 2026 23:10:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793229007; bh=ZOxopfCgic5R7Aeo/hqd3+pQx4C+2s3b4c+s8g5N62E=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=cMWmqGSWRNceRIBKm9sypqCBQCCTstQ+sWjOo9F5Qnb8akIOkcIwqDKxQCoJeEQBb 8fMYBsSu38Eh6+qVIaSftHmrUisBvPE8ibS0/xZUUEoqfwaMVX7aLbm3QK87iKZzlJ qgxg4Wb3YdOWFC9kln+YseUAaBJT1y2hiakvpvJre5L9kgNTK8i35LYZfbv3PbSYXE u47i4nARHOn0hLgHf/NKolucdY26ECrBoUplVnwwA3m8R0cdDnL8joRrRTau7HZOM+ 9eYyB7qKInW+0WSma8FtWPfgWk1jA3jv2uqYRPlCSW7O/fRdtIcgJsz9WTZOFDSpm9 1ETGv94QZr7ow== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 074D23AAFC4A; Wed, 28 Oct 2026 23:10:07 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net 0/2] Revert advertising the TCP MSS from the configured MTU From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179322900582.1471258.8439548147927472759.git-patchwork-notify@kernel.org> Date: Wed, 28 Oct 2026 23:10:05 +0000 References: <20261026-advmss-revert-v1-0-272fa4b7ecb6@gmail.com> In-Reply-To: <20261026-advmss-revert-v1-0-272fa4b7ecb6@gmail.com> To: Esko Mobius Cc: netdev@vger.kernel.org, kuba@kernel.org, pabeni@redhat.com, davem@davemloft.net, horms@kernel.org, dsahern@kernel.org, idosch@nvidia.com, jiayuan.chen@linux.dev, shuah@kernel.org, regressions@leemhuis.info, regressions@lists.linux.dev, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, edumazet@kernel.org Hello: This series was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 26 Oct 2026 15:23:07 +0800 you wrote: > Commit 2640e6419594 ("net: advertise TCP MSS from the configured MTU, > not the learned PMTU") breaks TCP for clients behind networks that > filter inbound ICMP, when the server reaches them through a hop with a > smaller MTU: the handshake completes, then the connection stalls as > soon as the client sends full-size segments. This was reported in [1] > and confirmed on 7.3-rc7; reverting the commit on top of 7.3-rc7 fixes > it. Details and numbers are in patch 2. > > [...] Here is the summary with links: - [net,1/2] Revert "selftests: net: packetdrill: add tests for advertised MSS with PMTU exceptions" https://git.kernel.org/netdev/net/c/b4aac29a21d9 - [net,2/2] Revert "net: advertise TCP MSS from the configured MTU, not the learned PMTU" https://git.kernel.org/netdev/net/c/564313447e54 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html