From nobody Tue Dec 9 19:30:00 2025 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4dQppK3TSyz6Jg8c for ; Tue, 09 Dec 2025 19:30:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dQppK2m7pz3l0X for ; Tue, 09 Dec 2025 19:30:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765308601; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=svm6FxCu04hKUdfUg2Z+aTWBFOQQDpTFOUToq0Q2PHo=; b=SjwSHjtMi6D5Z3BLFxFdxhWgAMkdePy8nqWgTjOHu4OdNAvIVTm9IA6jntFvtJvckYfgFq BjimOLiYJ3R/KiY8FROMtR32lC/qAR3R1lFtHGIsdvogm06/xRKWdUAqwus/7yRgNNYI2u 0F4eXzd/3ZZ4xmZ8nRqS+YM5kTng3dn6JRLIDe30MQL7LrL1+lS96QOw/jih4hp75Fq8hk yxewLIwpi76HEz8fUvw1yP3aTUDD2RrNDnJvA2fhcXfiYacuuKFBKiRVtjR0DS6gBXkZEu wzQpHs0OeJChSnj/Qm9x0LgeUvop9XTZNSns52qwOPW+UNCN0bs8mr79noQPsw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765308601; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=svm6FxCu04hKUdfUg2Z+aTWBFOQQDpTFOUToq0Q2PHo=; b=Pzx1YeZkBkdw11Pl9Fk/QJVJe4RTDedvDrCKxpJYWukdit0wLOyGAiFeG+dhjSQBcyaljT WjOJnbwhHBWMERESH2GsVhvBIKymMAX/8tyyj6EpP0v7wwhutXAaazXKGYf7bxRjQPS8Op 5HCTvxkeKwk8t0CiUiYk47iGpWZgXfTuifSeKPW46vqQeLd9AGboDqDqlP7bxRJflj/d2x 1hy8FO4k/bkZdg5CnmrKHg6NNzdVd7UoN+A0pCE27zbzd+qkEbkxLGBvrApHXVnqxpUJmu YUi4UZqBJ5n02lbaRT+O1puE5MWRmsNhRmCIC0SFo4iVZhTAUYg0tW1gN/FE8A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1765308601; a=rsa-sha256; cv=none; b=n7l4jAX4zncjLKhGIeIA1uJiNv8DBSVxoLJi+AV+pNn93Z5s8pY8w580Xqrfx5RbuYcv6f /EwPWrbXlIZwVtG3KOXTRdga9Zg233Lb3l2hmBsxookU3s9QXX0vXonPRIEEmhAf7h4R+v 8krw+qKrYNYqAtvctgUmqAf72d28uMOQvEofeJ5NGxM9ldToNL9gmfLM+Ud6IUYZluOyUr fbsr1p4aTzb4aKSnFYZJ3RO4Ou9VzxC8YHve94xGhV49lH88h+HRMZuZx7EFTliliRlSyC QGjC/se/8vsdJXBS37S7M2uFU0qZV6IPScc/KZ4DMqjaFE2QdO8NTgXWT9zFog== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4dQppK29q1z1BVl for ; Tue, 09 Dec 2025 19:30:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 5B9JU14t008582 for ; Tue, 9 Dec 2025 19:30:01 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5B9JU1TM008581 for net@FreeBSD.org; Tue, 9 Dec 2025 19:30:01 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 291420] [epair] Bad UDP packet checksum with epair(4) and txcsum enabled Date: Tue, 09 Dec 2025 19:30:00 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.3-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: tuexen@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D291420 --- Comment #12 from Michael Tuexen --- (In reply to Dmitry Lukhtionov from comment #11) Timo was able to reproduce the problem. The checksum problem is specific to bge devices and the root cause is understood. We are still contemplating how to deal with it. Most likely, we will disable txcsum per default for epair. A longer term fix will improve t= he bridge device to handle checksum offloading. I think that the ICMP problem is not related to this. When Timo configured = the IP address not on the bge member of the bridge, but on the bridge itself, it worked. Can you double check? --=20 You are receiving this mail because: You are the assignee for the bug.=