{"id":2230232,"url":"http://patchwork.ozlabs.org/api/1.1/covers/2230232/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/cover.1777468631.git.alessio.faina@canonical.com/","project":{"id":15,"url":"http://patchwork.ozlabs.org/api/1.1/projects/15/?format=json","name":"Ubuntu Kernel","link_name":"ubuntu-kernel","list_id":"kernel-team.lists.ubuntu.com","list_email":"kernel-team@lists.ubuntu.com","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<cover.1777468631.git.alessio.faina@canonical.com>","date":"2026-04-29T13:57:19","name":"[SRU,N:linux-bluefield,0/1] Revert performance sinking conntrack patch","submitter":{"id":91694,"url":"http://patchwork.ozlabs.org/api/1.1/people/91694/?format=json","name":"Alessio Faina","email":"alessio.faina@canonical.com"},"mbox":"http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/cover.1777468631.git.alessio.faina@canonical.com/mbox/","series":[{"id":502067,"url":"http://patchwork.ozlabs.org/api/1.1/series/502067/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=502067","date":"2026-04-29T13:57:19","name":"Revert performance sinking conntrack patch","version":1,"mbox":"http://patchwork.ozlabs.org/series/502067/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2230232/comments/","headers":{"Return-Path":"<kernel-team-bounces@lists.ubuntu.com>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=hVwhD1Rk;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g5Jlf5W6Pz1yK5\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 29 Apr 2026 23:57:34 +1000 (AEST)","from localhost ([127.0.0.1] helo=lists.ubuntu.com)\n\tby lists.ubuntu.com with esmtp (Exim 4.86_2)\n\t(envelope-from <kernel-team-bounces@lists.ubuntu.com>)\n\tid 1wI5Po-0001kc-6N; Wed, 29 Apr 2026 13:57:24 +0000","from smtp-relay-internal-1.internal ([10.131.114.114]\n helo=smtp-relay-internal-1.canonical.com)\n by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.86_2) (envelope-from <alessio.faina@canonical.com>)\n id 1wI5Pn-0001kU-1c\n for kernel-team@lists.ubuntu.com; Wed, 29 Apr 2026 13:57:23 +0000","from mail-wr1-f69.google.com (mail-wr1-f69.google.com\n [209.85.221.69])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by smtp-relay-internal-1.canonical.com (Postfix) with ESMTPS id D94163F918\n for <kernel-team@lists.ubuntu.com>; Wed, 29 Apr 2026 13:57:22 +0000 (UTC)","by mail-wr1-f69.google.com with SMTP id\n ffacd0b85a97d-43cfedb10a8so8302128f8f.1\n for <kernel-team@lists.ubuntu.com>; Wed, 29 Apr 2026 06:57:22 -0700 (PDT)","from localhost (93-35-127-183.ip55.fastwebnet.it. 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Reverting one of them after a previous one has\nbeen already reverted by upstream.\n\n[Fix]\n\nRevert commit def3e30c59e\n\n[Test case]\n\nCompile tested\nFull test will be performed by NVIDIA R&D engineers to confirm the successful\noutcome after patch is reverted.\n\n[Regression potential]\n\nThe code works in conntrack and with TCP timeouts; it can break some\nTCP flows and offloading structures, leading to broken connections or\nstill under-performing network speed.\n\nAlessio Faina (1):\n  UBUNTU: SAUCE: Revert \"netfilter: conntrack: rework offload nf_conn\n    timeout extension logic\"\n\n include/net/netfilter/nf_conntrack.h |  10 +++\n net/netfilter/nf_conntrack_core.c    |   6 ++\n net/netfilter/nf_flow_table_core.c   | 105 +--------------------------\n 3 files changed, 18 insertions(+), 103 deletions(-)"}