From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (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 C6F3BEACD; Fri, 16 Jan 2026 13:38:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768570690; cv=none; b=TPGRSmQPiPXFtRkhxan+vXHC1lgdvGHyTI2WuZCBeQto5tpO+By4YKZf4s0VyswvQ4AlCL8NjKMD1fB0alfmI1YZ2yhRtoiFRJAQ3FPC0i9IETpGoZrFIGakk3/XTA89L6j5D8UH3l6q3Ds4SUF9Kg7KyvoaEvWIs8oEUXJ8s6Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768570690; c=relaxed/simple; bh=JTC1pdUlTXTnciOTM3GzaepjRusA+OY4fCCHGwJtnd4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=upvTP0Y7TtsYx/X3M+brgIvgsvr1MDRszm5B610cLtsBTR8b3xRH0feefP43gTMyF1vlGXdSDPMjAy+af9lFhfs3F8q1JwTxAY1zIIVC4Xd9BSZvvsrAHFptErhd0DICNIT/BMmkLB/YlFg56tyW7+uyXRIKjolRts942sb95ME= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=NwpCnzDH; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="NwpCnzDH" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=YbUJvWjZg5Gp5lUyzT1dd9lszS+ppdNrSyuG65trSl8=; b=NwpCnzDHX19af34HFw+Njzwyi2 ZOqhYX0HAWLYZmMBQzZp1qOVC1kxD0xLiDiG3UzKrBITXxS9HmBiQlU2pD7/Tx6pp5JP3iRy0Kh0j GZsdfhjedm4KcPSrc8ncVQTyVVKetTCJy69M4DjoxQUDGm01XFlfwIMV1t76Qt5NsOdAt8tiCpkEs Vq9+uwEftsCUwEMxCgGJXFOYNpv5yGk9pf1C0pZcyni8P68dYOotxl8/G+TYBIXumXah9kNUygEKq HA6/ogSGiv08SO1r+mGQS95qSPU5cMJ5s3EO57UF+FnNJhFYL3oLzzGjWP2JW2k0p50vIaCUnqG7L Nva0wEAw==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:59078) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vgk1T-000000002JP-0Dvp; Fri, 16 Jan 2026 13:37:55 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vgk1M-000000003dz-0ixQ; Fri, 16 Jan 2026 13:37:48 +0000 Date: Fri, 16 Jan 2026 13:37:47 +0000 From: "Russell King (Oracle)" To: Maxime Chevallier Cc: Tao Wang , alexandre.torgue@foss.st.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, mcoquelin.stm32@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com Subject: Re: [PATCH net v2] net: stmmac: fix transmit queue timed out after resume Message-ID: References: <20260115070853.116260-1-tao03.wang@horizon.auto> <6a946edc-297e-469a-8d91-80430d88f3e5@bootlin.com> <51859704-57fd-4913-b09d-9ac58a57f185@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: Russell King (Oracle) On Fri, Jan 16, 2026 at 12:50:35AM +0000, Russell King (Oracle) wrote: > However, while this may explain the transmit slowdown because it's > on the transmit side, it doesn't explain the receive problem. I'm bisecting to find the cause of the receive issue, but it's going to take a long time (in the mean time, I can't do any mainline work.) So far, the range of good/bad has been narrowed down to 6.14 is good, 1b98f357dadd ("Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next") is bad. 14 more iterations to go. Might be complete by Sunday. (Slowness in building the more fully featured net-next I use primarily for build testing, the slowness of the platform to reboot, and the need to manually test each build.) -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!