From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B28F67E91 for ; Tue, 20 Feb 2024 14:59:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708441183; cv=none; b=kxay2nsjJVQ6h4Ss/tK7OM7JyzazVmtQqOcz4HcY2AoFr4ToA545WX3s6uQ6Zrj8LWOjte++yiSA/0UKWSLsDt+HMj2daI7CI1OtycUUZDE7xUjNQZSleSj4Rhjt9V4c65N1M++WIH9A2ME2dvfqRtqOULVH5pNWwqYi8++BjLY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708441183; c=relaxed/simple; bh=Vl8sRftmVCAC+0ik4/WZAg9S0fv7UNvmWT1ZfD0nRrE=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=DU8bV7yX2RmJfAkvSc2CAww2C8887mmEOST8Rmm951FbC5QHLxyYiyhxnUgtQN4onl7Oo7t8qCMBvHqHiB59aZyEOBeXGQf8JZsSd1f19qKNhwqOehH9mclRMS9tnUrg5RBWDt4OWDgW+81cucdtKk9DvOf+/8cM9+2HfoRTLnw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lLGJ3WHx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lLGJ3WHx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B422EC433C7; Tue, 20 Feb 2024 14:59:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708441183; bh=Vl8sRftmVCAC+0ik4/WZAg9S0fv7UNvmWT1ZfD0nRrE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=lLGJ3WHxzpNDBV3ojyZQqGl0Uyrp2J6Ex5QBIC4TCvtwisrXtwPPWVxJZOZqGhWA4 nO+apD1StgdrGlgEvWOaneTzEihR4KcsN9jcylWGvJZWxp+ykwnDYtv0TLlv9wB7qi eIG7/n2uGVjnjbYRyMT/+og7VbaihCts5VmUNHqY/LAnd2T8Y2OasI4hKiNQDdcUtc 2J2Xz7+nBQpwqKkkSSpMy5V4x7QFTEyhaqmWE6z49j+f5CaIUx18k77u/9LOUf0d/Y pVXHIcFQm2yg4BiXhEnKhyOBUU8cl+e6/B89uAG0xAuN2GqWDpYtT5jxn87bwW5Fd0 lQ0FgawSVtf3w== Date: Tue, 20 Feb 2024 06:59:41 -0800 From: Jakub Kicinski To: Petr =?UTF-8?B?VGVzYcWZw61r?= , Christian Stewart Cc: Marc Haber , Florian Fainelli , Andrew Lunn , alexandre.torgue@foss.st.com, Jose Abreu , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Jisheng Zhang , netdev@vger.kernel.org Subject: Re: stmmac on Banana PI CPU stalls since Linux 6.6 Message-ID: <20240220065941.6efa100f@kernel.org> In-Reply-To: <20240219204421.2f6019c1@meshulam.tesarici.cz> References: <8efb36c2-a696-4de7-b3d7-2238d4ab5ebb@lunn.ch> <229642a6-3bbb-4ec8-9240-7b8e3dc57345@lunn.ch> <99682651-06b4-4c69-b693-a0a06947b2ca@gmail.com> <20240126085122.21e0a8a2@meshulam.tesarici.cz> <20240126121028.2463aa68@meshulam.tesarici.cz> <0ba9eb60-9634-4378-8cbb-aea40b947142@gmail.com> <20240206092351.59b10030@meshulam.tesarici.cz> <20240219204421.2f6019c1@meshulam.tesarici.cz> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Mon, 19 Feb 2024 20:44:21 +0100 Petr Tesa=C5=99=C3=ADk wrote: > If you're running a 6.7 stable kernel, my patch has just been added to > the 6.7-stable tree. >=20 > https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/t= ree/queue-6.7/net-stmmac-protect-updates-of-64-bit-statistics-counters.patch >=20 > However, lockdep has reported an issue with it: >=20 > https://lore.kernel.org/lkml/ea1567d9-ce66-45e6-8168-ac40a47d1821@roeck-u= s.net/ >=20 > This new report has not yet been properly understood, but FWIW I've > been running stable with my patch for over a month now. Christian got an actual soft lockup, not just a lockdep warning, tho. Christian, could you run the stack trace thru scripts/decode_stacktrace and tell us which loop it's stuck on?