From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: Re: am335x: cpsw: interrupt failure Date: Mon, 29 Dec 2014 09:50:29 -0600 Message-ID: <20141229155029.GA29379@saruman> References: <20141204165609.GJ18045@saruman> <20141210171724.GI4602@saruman> <20141210210234.GN4602@saruman> <20141212173210.GI7549@saruman> Reply-To: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="EVF5PPMfhYS0aIcm" Cc: Felipe Balbi , netdev , "N, Mugunthan V" , "linux-omap@vger.kernel.org" To: Yegor Yefremov Return-path: Received: from devils.ext.ti.com ([198.47.26.153]:39301 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751449AbaL2Puz (ORCPT ); Mon, 29 Dec 2014 10:50:55 -0500 Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: --EVF5PPMfhYS0aIcm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Dec 29, 2014 at 10:33:26AM +0100, Yegor Yefremov wrote: > On Fri, Dec 12, 2014 at 8:19 PM, Yegor Yefremov > wrote: > > On Fri, Dec 12, 2014 at 6:32 PM, Felipe Balbi wrote: > >> Hi, > >> > >> On Fri, Dec 12, 2014 at 01:00:51PM +0100, Yegor Yefremov wrote: > >>> U-Boot version: 2014.07 > >>> Kernel config is omap2plus with enabled USB > >>> > >>> # cat /proc/version > >>> Linux version 3.18.0 (user@user-VirtualBox) (gcc version 4.8.3 > >>> 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-29) ) #6 SMP > >>> Mon Dec 8 22:47:43 CET 2014 > >> > >> Wasn't GCC 4.8.x total crap for building ARM kernels ? IIRC it was even > >> blacklisted. Can you try with 4.9.x just to make sure ? > > > > Will do. >=20 > Adding linux-omap. Beginning of this discussion: > http://comments.gmane.org/gmane.linux.network/341427 >=20 > Quick summary: starting with kernel 3.18 or commit > 55601c9f24670ba926ebdd4d712ac3b177232330 am335x (at least BBB and some > custom boards) stalls at high network load. Reproducible via nuttcp > within some minutes >=20 > nuttcp -S (on BBB) > nuttcp -t -N 4 -T30m 192.168.1.235 (on host) >=20 > As Felipe Balbi suggested, I tried both 4.8.3 and 4.9.2 toolchains, > but both show the same behavior. >=20 > Linux version 3.18.0 (user@user-VirtualBox) (gcc version 4.8.3 > 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-29) ) #6 SMP > Mon Dec 8 22:47:43 CET 2014 > Linux version 3.18.1 (user@user-VirtualBox) (gcc version 4.9.2 > (Buildroot 2015.02-git-00582-g10b9761) ) #1 SMP Mon Dec 29 09:22:29 > CET 2014 >=20 > Let me know, if you can reproduce this issue. finally managed to reproduce this, it took quite a bit of effort though. I'll see if I can gether more information about the problem. --=20 balbi --EVF5PPMfhYS0aIcm Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUoXhFAAoJEIaOsuA1yqREMEMP/0V1S5OySRsUUujYOfll4LNB NEvayDpYheJHLtc7plSO6zEd9X6JwBnBanFkJhxfEiJsDHURD1V8omJzEHE0+SQc 4+LbYfc2/TeSiKASMzcAzAmt+KQ4sDPFo6oxZvlyP1mtUTmj1L2t4BFZPcwAyO5m hAK0noy6TH2ywBNcDIqn2EBcloObiXy9RhlLB782exdgdSKB//XS6aYuVbtul9/p hoqt2uP732Zvp/iNkZ2unDG6AoXRFL6CKq6OIV3kyBvOxRqi59Dj08yviGLb2O82 I2GgAWkI8vytUtaKljlC2WZ9qfOUGQzKkkXOjRH1Uvz3dqj0MbrRg/0PoDRzveki krpQzgZloem5khknQCgkrCxCafa2QWs2uNPy0QUJify5eGMiHYSTFN6+/+8v/3fM 88C6aHcWdO5j77yjR5nXHTP5ZRUQzTrrLNKeO+nUc38pptDKWofJuYP6TwN+GfNv YvNXNQODVecbR4cyhaJ7soMk4LUqE9rqwj0xE7jffa0b1wKAb8yclx3/3wggqRfV S2g/kY6yDyNOTyT9s5kpQGmbJ3HqiiUEEM+2w74JqwzG9IcxhtgSK1E4bOTBVxbv LNzZWrRsejD1HhQ1gW79EdmrQ+wXKVhwGEh91KDa+FiDqsEfH0by5K+HNpDRAC1z Lhcd/DA+dUkqzUgJy3nw =Y5Mr -----END PGP SIGNATURE----- --EVF5PPMfhYS0aIcm--