From owner-freebsd-net@freebsd.org Tue Mar 2 07:39:28 2021 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BB50855E8EC for ; Tue, 2 Mar 2021 07:39:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4DqTXw4g5Gz3Dpp for ; Tue, 2 Mar 2021 07:39:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 9E47955E764; Tue, 2 Mar 2021 07:39:28 +0000 (UTC) Delivered-To: net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 9E08655E8EA for ; Tue, 2 Mar 2021 07:39:28 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DqTXw417Bz3Djn for ; Tue, 2 Mar 2021 07:39:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 7654D129E8 for ; Tue, 2 Mar 2021 07:39:28 +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 1227dSVh024747 for ; Tue, 2 Mar 2021 07:39:28 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 1227dS4a024746 for net@FreeBSD.org; Tue, 2 Mar 2021 07:39:28 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: net@FreeBSD.org Subject: [Bug 252165] mii bus media status race condition Date: Tue, 02 Mar 2021 07:39:28 +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: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: ali.abdallah@suse.com 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-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Mar 2021 07:39:28 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D252165 --- Comment #14 from Ali Abdallah --- Even without UE_LOCK and UE_UNLOCK of comment 13 the issue is still occurring...=20 The following dtrace is observed when the link state fictitiously changes=20 2 64192 ue_tick_task:entry 242528044179 2 64175 ure_tick:entry 242528050925 1 64152 ure_ifmedia_sts:entry 242529137165 2 64176 ure_tick:return 242529369904 1 64152 ure_ifmedia_sts:entry 242529474008 2 64153 ure_ifmedia_sts:return 242530486029 For whatever reason... Normally the sequence should be=20 2 64152 ure_ifmedia_sts:entry 243552084077 2 64153 ure_ifmedia_sts:return 243553071554 0 64192 ue_tick_task:entry 243553441743 0 64175 ure_tick:entry 243553444178 2 64176 ure_tick:return 243554572011 3 64152 ure_ifmedia_sts:entry 243663084286 3 64153 ure_ifmedia_sts:return 243664074467 --=20 You are receiving this mail because: You are the assignee for the bug.=