From nobody Thu Nov 20 02:41:28 2025 X-Original-To: bugs@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 4dBjKP0wrXz6GlGW for ; Thu, 20 Nov 2025 02:41:29 +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 4dBjKN5slNz3rgg for ; Thu, 20 Nov 2025 02:41:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1763606488; 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; 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Thu, 20 Nov 2025 02:41:28 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5AK2fS5G046079 for bugs@FreeBSD.org; Thu, 20 Nov 2025 02:41:28 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: bugs@FreeBSD.org Subject: [Bug 291105] Intel i350 not receiving arp replies Date: Thu, 20 Nov 2025 02:41:28 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new 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: dave@jetcafe.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D291105 Bug ID: 291105 Summary: Intel i350 not receiving arp replies Product: Base System Version: 14.3-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: dave@jetcafe.org igb0@pci0:6:0:0: class=3D0x020000 rev=3D0x01 hdr=3D0x00 vendor=3D0x8= 086 device=3D0x1521 subvendor=3D0x8086 subdevice=3D0x5001 vendor =3D 'Intel Corporation' device =3D 'I350 Gigabit Network Connection' class =3D network subclass =3D ethernet igb0: flags=3D1008947 metric 0 mtu 1500 options=3D800020 ether b4:96:91:56:32:0c inet 172.18.1.5 netmask 0xffffff00 broadcast 172.18.1.255 media: Ethernet autoselect (1000baseT ) status: active nd6 options=3D29 # ping 172.18.1.7 PING 172.18.1.7 (172.18.1.7): 56 data bytes ping: sendto: Host is down # arp -an | grep 172.18.1.7 ? (172.8.1.7) at (incomplete) on igb0 expired [ethernet] Ok. So tcpdump on the .7 machine reveals: 18:36:24.446015 ARP, Request who-has 172.18.1.7 tell 172.18.1.5, length 46 18:36:24.446026 ARP, Reply 172.18.1.7 is-at 70:85:c2:c1:19:11, length 28 but tcpdump on the .5 machine simply says 18:37:44.286895 ARP, Request who-has 172.18.1.7 tell 172.18.1.5, length 28 Thus I believe I have observed the reply not getting to the destination (.5) machine. Now I have already looked at the switch involved and moved these t= wo to a different switch. Same result.=20 Is there something I'm missing?=20=20 The relevant dmesg bits are: igb0: mem 0xdec00000-0xdecfffff,0xdef0c000-0xdef0f= fff at device 0.0 on pci6 igb0: EEPROM V1.67-0 Option ROM V18-b8-p9 eTrack 0x80000fb7 igb0: Using 1024 TX descriptors and 1024 RX descriptors igb0: Using 8 RX queues 8 TX queues igb0: Using MSI-X interrupts with 9 vectors igb0: Ethernet address: b4:96:91:56:32:0c igb0: netmap queues/slots: TX 8/1024, RX 8/1024 Can anyone explain what is going on? --=20 You are receiving this mail because: You are the assignee for the bug.=