From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Monnerie Subject: Regression 2.6.36 - driver rtl8169 crashes kernel, triggered by user app Date: Thu, 11 Nov 2010 19:33:00 +0100 Message-ID: <201011111933.04343@zmi.at> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2438180.0ZLtrkFrBO"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Cc: romieu@fr.zoreil.com, netdev@vger.kernel.org To: linux-kernel@vger.kernel.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org --nextPart2438180.0ZLtrkFrBO Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Dear list, I've hunted down a bug which does *NOT* occur in kernel=20 2.6.34.7-0.5-desktop from openSUSE 11.3, but crashes stock kernel 2.6.36=20 triggered by a user! It's actually very simple. From my desktop (kernel 2.6.36) I "cd" to an=20 NFS4 share, where a xz compressed image of Win7-64.iso.xz is located. # cd /q/iso-images and then I try to uncompress it there (as user, not root!): # xz -kv Win7-64.iso.xz With kernel 2.6.34.7-0.5-desktop, this runs with ~41MiB/s without=20 problems. With kernel 2.6.36, it runs at ~26MiB/s, and while doing so, dmesg shows=20 a lot of noise about r8169 complaining: http://zmi.at/x/kernel2.6.36-crash86.jpg Here are 2 pictures of different crashes: http://zmi.at/x/kernel2.6.36-crash84.jpg http://zmi.at/x/kernel2.6.36-crash85.jpg Neither the dmesg-messages nor the crash happens with kernel=20 2.6.34.7-0.5-desktop as delivered by openSUSE 11.3, but it always fully=20 crashes 2.6.36. I've retried about 10 times, it *never* finished to=20 uncompress the ~3GB image. At around 500-1000MB the kernel was gone. I'm sure someone knows how to fix it. :-) =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 ****** Radiointerview zum Thema Spam ****** http://www.it-podcast.at/archiv.html#podcast-100716 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart2438180.0ZLtrkFrBO Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) iEYEABECAAYFAkzcNuAACgkQzhSR9xwSCbQ9sACfQpVrOihap/EXBpa0FkcfhnvY 67MAoJl5DZy5wHmijRrRzdY/J7Hvj4FB =HC7Y -----END PGP SIGNATURE----- --nextPart2438180.0ZLtrkFrBO--