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[130.117.225.111]) by mx.google.com with ESMTPS id ffacd0b85a97d-48e71ba4454si23581384f8f.75.2026.11.03.05.04.55 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 05:04:55 -0800 (PST) Received-SPF: pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) client-ip=130.117.225.111; Authentication-Results: mx.google.com; dkim=pass header.i=@virtuozzo.com header.s=relay header.b=pxEjn++h; spf=pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=khorenko@virtuozzo.com; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=virtuozzo.com DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Message-Id:Date:From:Subject:Content-Type: MIME-Version; bh=i6m82PkFQMvonUE3QnZ5eZi05qmCFy/wOm9vQc48hzk=; b=pxEjn++hj/gv yxSajhUMPVTftiOgKNvn0ZMCAKkLBvmxykqM4tpoEYvVVAzcY4QBSqyDUyNTuikGfU/rrf4HdvWKM RZBLP0G6lDbd/ZJ9h1+TDeWtCDMwPiEpgvm1JPjH8FEVISeqReFbQ/6KsQ33/6xPJYaWog4Tctzyj E2twKvhZGToPt4HbCk1aiCbVKPrQmfG/A+wuv0siKyypY67pKSEXYpCc4bnCYVoSrdUSJp+uqg4ql 3ALOKkzx6uPJlPaOK5i2iTwQh5hLQGMrn9Vsmcasj5HQEgvwlBXC38jgowLUWzTD/pIn8H5nSy8tO hjJz2hk7rXqhrRIb6kU1gg==; Received: from ch-demo-asa.virtuozzo.com ([130.117.225.8] helo=f0.sw.ru) by relay.virtuozzo.com with esmtp (Exim 4.96) (envelope-from ) id 1xOE8B-00FiFL-3B; Tue, 03 Nov 2026 14:04:45 +0100 MIME-Version: 1.0 From: Konstantin Khorenko To: Eva Kurchatova In-Reply-To: <20261103021237.2465704-1-eva.kurchatova@virtuozzo.com> References: <20261103021237.2465704-1-eva.kurchatova@virtuozzo.com> Date: Tue, 03 Nov 2026 14:04:52 +0100 Message-Id: <179371109263.2402676.10064531398714880019.b4-review@b4> X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1591; i=khorenko@virtuozzo.com; h=from:subject:message-id; bh=TpRW+LkUpT4gUZtJv/Rqz/0sndZ5iQZKpfdkyMEru3U=; b=owEBbQKS/ZANAwAKAVGWCkf5YVwqAcsmYgBq6dv2S+i1s3gKaORE/b2Fn95DfTlSp5TMvAvJ6 sziv5wudEyJAjMEAAEKAB0WIQRWD23IPcXT0GO9CCxRlgpH+WFcKgUCaunb9gAKCRBRlgpH+WFc Kq7JD/9FcQyZvqk0qY43HKCKcSNCqnnuqRgeT8kgbzVh0czzkLHV7bFuNesFq8Lc0wmbmE1R6as GvWI7b3HQPi3yNAkzkxqQdBMpS9r4fwYCOEysKUpRlZY+QkHuO2ex7+hSFT+FiVPndeVPUKCBF8 jUsWEPENKOkuka8cLSbLiZgEFZgNCr5VS5zQoUqsIxIEp9kD8a7VLVvwlob+tKL9uvWQIBqF2nD 654aA2vGQxOmofmu/ZT++xFx/Q3ZW3xA1Z/JwTkQ7XIstqdrb8n+XjiZ6KVmENAEVVmF3NSlzr+ BR+Gt2s1Ll9Eg9HOorhJNBTTcdpk1i2FQGYMscFb78bbqbxlW9gGT5U/uCP3FNDWOX+AR8dTiro lywMQJtbDbuqaUCTfuEuOWmXMRtQee9euGN1K/Uoaigf4vy/QN/FBfBqCJ2kdjuUAK7jF3z/g5m x47gsXPLFLOSfTPHfLzzkdhpis8mQT2DM0vWuaPROlOmlGxJ0dWywBWYocfyb+T5lLuRk6Ib8mG j1lSCLHWNI8BOq7k+m9Zw8KOZA3+cAgZZpgGzzD7JJz7OOXnGEW2XcbmiYZ6B+mXjg5d4JIprrZ v0zunZF265ba6xrkFak6UTIeQjuPDiaoXQiTsEMmYKdiM5vxemQM10+ps2Wy+nQD9Opd4R43/gW JdffuwAyc7lDu0Q== X-Developer-Key: i=khorenko@virtuozzo.com; a=openpgp; fpr=560F6DC83DC5D3D063BD082C51960A47F9615C2A X-OZ-Fwd: true Cc: devel@openvz.org Subject: Re: [Devel] [PATCH hci-8.1] selftests: forwarding: flush neighbours in the bridge locked port test X-BeenThere: devel@openvz.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: OpenVZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org On Tue, 03 Nov 2026 04:12:34 +0200, Eva Kurchatova wrote: > While the port drops h1's traffic, h1's neighbour entry for h2 can go > stale and start probes that the port drops too. If that resolution > fails just after the port lets h1's traffic through again, the next > ping gets "Destination Host Unreachable", ping stops at the first > error because a deadline is set, and the test fails with, for example, > "Ping did not work after replacing FDB entry". Only locked_port_mab can fail this way, and the CI log shows only that case failing. So please: - keep only the flush in locked_port_mab and drop the other three; - keep only "Fixes: 4a331d346996", b2b681a41251 goes with the dropped hunks; - describe the resolution that actually fails (below). Why only MAB: its entry for 192.0.2.2 is left over from locked_port_ipv4, and the port stays locked for two pings, long enough for that entry to time out. In the other three cases the first ping resolves a fresh entry, which stays REACHABLE longer than the port is locked. The ipv6 flush would even hide the MAB failure: it also removes the old IPv4 entry before the MAB case runs. What fails: the stale entry's unicast probes failing reports nothing. The error comes from the broadcast resolution that the locked ping starts. It fails after the next ping has queued its first packet, and that ping gets "Destination Host Unreachable". Nit: say "the locked bridge port" in the first sentence, and name the MAB check instead of "for example". -- Konstantin Khorenko, Virtuozzo Linux Kernel Team _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel