From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E20DC32774 for ; Thu, 25 Aug 2022 04:21:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230354AbiHYEVL (ORCPT ); Thu, 25 Aug 2022 00:21:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230338AbiHYEVK (ORCPT ); Thu, 25 Aug 2022 00:21:10 -0400 Received: from bmailout2.hostsharing.net (bmailout2.hostsharing.net [83.223.78.240]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23F6E2A73D; Wed, 24 Aug 2022 21:21:08 -0700 (PDT) Received: from h08.hostsharing.net (h08.hostsharing.net [IPv6:2a01:37:1000::53df:5f1c:0]) (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 "*.hostsharing.net", Issuer "RapidSSL TLS DV RSA Mixed SHA256 2020 CA-1" (verified OK)) by bmailout2.hostsharing.net (Postfix) with ESMTPS id 1351B2800095B; Thu, 25 Aug 2022 06:21:06 +0200 (CEST) Received: by h08.hostsharing.net (Postfix, from userid 100393) id 074654A8C2; Thu, 25 Aug 2022 06:21:06 +0200 (CEST) Date: Thu, 25 Aug 2022 06:21:06 +0200 From: Lukas Wunner To: Mark Brown Cc: Oleksij Rempel , Ferry Toth , Andrew Lunn , Andre Edich , "David S. Miller" , Sasha Levin , kernelci-results@groups.io, bot@kernelci.org, gtucker@collabora.com, stable@vger.kernel.org, netdev@vger.kernel.org, linux-omap@vger.kernel.org Subject: Re: stable-rc/linux-5.18.y bisection: baseline.login on panda Message-ID: <20220825042106.GA16015@wunner.de> References: <63068874.170a0220.2f9fc.b822@mx.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Wed, Aug 24, 2022 at 11:47:03PM +0100, Mark Brown wrote: > On Wed, Aug 24, 2022 at 01:22:12PM -0700, KernelCI bot wrote: > The KernelCI bisection bot identified 7eea9a60703ca ("usbnet: smsc95xx: > Forward PHY interrupts to PHY driver to avoid polling") as causing a > boot regression on Panda in v5.18. The board stops detecting a link > which breks NFS boot: > > <6>[ 4.953613] smsc95xx 2-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 02:03:01:8c:13:b0 > <6>[ 5.032928] smsc95xx 2-1.1:1.0 eth0: hardware isn't capable of remote wakeup > <6>[ 5.044036] smsc95xx 2-1.1:1.0 eth0: Link is Down > <6>[ 25.053924] Waiting up to 100 more seconds for network. > <6>[ 45.074005] Waiting up to 80 more seconds for network. > <6>[ 65.093933] Waiting up to 60 more seconds for network. > <6>[ 85.123992] Waiting up to 40 more seconds for network. > <6>[ 105.143951] Waiting up to 20 more seconds for network. > <5>[ 125.084014] Sending DHCP requests ...... timed out! Looks like v5.19 boots fine (with the offending commit), so only v5.18-stable and v5.15-stable are affected: https://storage.kernelci.org/stable-rc/linux-5.19.y/v5.19.3-366-g32f80a5b58e2/arm/multi_v7_defconfig/gcc-10/lab-baylibre/baseline-panda.html The offending commit was a new feature introduced in v5.19, it deliberately wasn't tagged for stable. Aggressively backporting such new features always carries a risk of regressions. Off the cuff I don't see that a prerequisite commit is missing in stable kernels. So just reverting the offending commit in v5.18-stable and v5.15-stable (but not in v5.19-stable) might be the simplest solution. Thanks, Lukas