From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 98DC5606A31C for ; Thu, 12 Nov 2026 19:17:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=RNPkJcE7; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=j+GrNe7Y DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=mgRO0VBWjRY/9EHbtSgQvAd+ddMpjekAAo3rcaJiw5U=; b=RNPkJcE74tHeWe GOB8I0YXxM5DXJPGpVeAsKGBdV2miWFROwWHayeDDCJX2Rqr6KS0GYHcVtgzQnWbEfW3sZfYq34// yrZMwKTFFEdpJ379/cRlE7cJdbtB7k3vUzYGBjLQI7J1pYSKt817hB2XrRRW0dYVfYCQUl8hmhvUZ zDFBuHNybm3LOo76UWfLIQzEZazuP9MmX1VyblOWaO5lX8fc6Hb3FI1tVWD5X9Kp+37899iLHYQt7 pjvhT0H79MnoxS/UkMhHPduPuy+eJe4a7bL7hZvh65QBMNAsHcEmAWBE0DbINAHGFwN8/fGwJAYpt y8wb3ObwRDae42U2qisg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xRaIn-0000000Aw6f-0pAN; Thu, 12 Nov 2026 19:17:41 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xRaIl-0000000Aw65-1joB; Thu, 12 Nov 2026 19:17:39 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C58DF41F4D; Thu, 12 Nov 2026 19:17:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0796B1F000C4; Thu, 12 Nov 2026 19:17:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794511058; bh=mgRO0VBWjRY/9EHbtSgQvAd+ddMpjekAAo3rcaJiw5U=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=j+GrNe7Yeq/1XBFJGG2GGi4w4nBOCjKTif4kT2vB8GzXwlBcSGwr4z3h1++5rg/Qr gFnCgvJed7L7xWkXaYwde0T7vLhUjxjk8rxPn75sV/GGVaAldE8toCSDCb6R+xVm9u FtwVNZPTKZgzNu1BKOKSzdWmePVOJLMU2KrbAL9xU0UMcxH9SEZa4tOvpBThqwsz98 YVpn8OsbyZgCtmhZNk671j7IRoTDMRZrRjc0zMdXQ7Otg1UhQGW8wSjein2bSnZL4G m/UhbPxf+Cfu7l0MdXjc9A+wIEFeC2a7Mhm1sJzKJ4/oBo5ZMs6f2F/kQtFY0hCm5w 3MlS4o9/Ouv7w== Date: Thu, 12 Nov 2026 11:17:37 -0800 From: Jakub Kicinski To: Igor Velkov Cc: netdev-bot+sinfo@kernel.org, Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Paolo Abeni , Maxime Chevallier , Lukas Wunner , "Rafael J. Wysocki" , Wei Fang , Niklas =?UTF-8?B?U8O2ZGVybHVuZA==?= , Paul Barker , Florian Fainelli , Doug Berger , Thangaraj Samynathan , Shenwei Wang , Haoning Cheng , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net v5 0/4] net: phy: postpone PHY interrupts during sleep with MAC-managed PM Message-ID: <20261112111737.730f8875@kernel.org> In-Reply-To: <20261112-phylib-v5-sinfo-reply-1@iav.lv> References: <20261111-b4-phylib-mac-pm-irq-v3-v5-0-bbfdb5afb7d3@iav.lv> <179444109487.2168702.10631162542543162252@kernel.org> <20261112-phylib-v5-sinfo-reply-1@iav.lv> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-5.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu, 12 Nov 2026 01:55:16 +0200 Igor Velkov wrote: > Patch 4 fixes a hang seen on Helios64 (dwmac-rk, RTL8211F): in s2idle > without WoL the board hung or reset 10 of 10 times without the series. > The PHY IRQ thread stalls its CPU on an MDIO read while the GMAC clocks > are off, so that CPU never answers the NMI: > > watchdog: CPU0: Watchdog detected hard LOCKUP on cpu 1 > After 10 seconds, these CPUS still haven't responded to the NMI: 1 > > Patches 1-3 fix defects found by code inspection and Sashiko review; > they were not triggered. please remember to add this to the cover letter