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[34.85.207.234]) by smtp.gmail.com with UTF8SMTPSA id d75a77b69052e-4eba37d72ecsm114282391cf.9.2025.10.30.05.26.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Oct 2025 05:26:51 -0700 (PDT) Date: Thu, 30 Oct 2025 08:26:51 -0400 From: Willem de Bruijn To: Anubhav Singh , netdev@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Shuah Khan , Willem de Bruijn , Coco Li , Anubhav Singh Message-ID: In-Reply-To: <20251030062818.1562228-1-anubhavsinggh@google.com> References: <20251030055714.1553346-1-anubhavsinggh@google.com> <20251030062818.1562228-1-anubhavsinggh@google.com> Subject: Re: [PATCH net v2] selftests/net: fix out-of-order delivery of FIN in gro:tcp test Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Anubhav Singh wrote: > Due to the gro_sender sending data packets and FIN packets > in very quick succession, these are received almost simultaneously > by the gro_receiver. FIN packets are sometimes processed before the > data packets leading to intermittent (~1/100) test failures. > > This change adds a delay of 100ms before sending FIN packets > in gro:tcp test to avoid the out-of-order delivery. The same > mitigation already exists for the gro:ip test. > > Fixes: 7d1575014a63 ("selftests/net: GRO coalesce test") > Reviewed-by: Willem de Bruijn > Signed-off-by: Anubhav Singh > --- > Changes in v2: > - Add 'Shuah Khan ' to the CC list. Remember to not repost within 24 hours: https://kernel.org/doc/html/latest/process/maintainer-netdev.html#tl-dr