From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mugunthan V N Subject: Re: dhcp nfsroot booting failure on bb white Date: Wed, 12 Aug 2015 14:22:53 +0530 Message-ID: <55CB0965.9020300@ti.com> References: <20150812083629.GA778@omega> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: Alexander Aring , Return-path: Received: from bear.ext.ti.com ([192.94.94.41]:43324 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753755AbbHLIxD (ORCPT ); Wed, 12 Aug 2015 04:53:03 -0400 In-Reply-To: <20150812083629.GA778@omega> Sender: netdev-owner@vger.kernel.org List-ID: On Wednesday 12 August 2015 02:06 PM, Alexander Aring wrote: > Hi, > > my beaglebone (white edition) fails to boot via dhcp and nfsroot. The > last messages which I see are: > > ... > [ 2.970593] Sending DHCP requests . > [ 5.996876] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - > flow control off > > > then it stucks forever. I reverted the recently cpsw patches: > > 32a7432c0fb8b0117961bdc7ab256667d039de16 ("drivers: net: cpsw: add > separate napi for tx") > > d354eb85d61803e07831b68d1985cd9cfe2f8b59 ("drivers: net: cpsw: > dual_emac: simplify napi usage") > > 870915feabdc3af5f0ebb72d1fcf96bff01837b0 ("drivers: net: cpsw: remove > disable_irq/enable_irq as irq can be masked from cpsw itself") > > > I did a test after each revert, I finally figured out that after reverting > the last patch: > > 870915feabdc3af5f0ebb72d1fcf96bff01837b0 ("drivers: net: cpsw: remove > disable_irq/enable_irq as irq can be masked from cpsw itself") > > it worked again to boot via dhcp nfsroot. > > > My bootparameters are: > > commandline: console=ttyO0,115200n8 console=ttyO0,115200n8 ip=dhcp > root=/dev/nfs nfsroot=$IP:$NFS_EXPORT,v3,tcp > I am already looking into it. Will submit a fix soon. The issue is with AM335x PG1.0 as there is a errata in CPSW interrupts, PG2.x and other SoCs are working fine. Regards Mugunthan V N