From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263715AbTKFStg (ORCPT ); Thu, 6 Nov 2003 13:49:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263718AbTKFStg (ORCPT ); Thu, 6 Nov 2003 13:49:36 -0500 Received: from null.rsn.bth.se ([194.47.142.3]:22155 "EHLO null.rsn.bth.se") by vger.kernel.org with ESMTP id S263715AbTKFStd (ORCPT ); Thu, 6 Nov 2003 13:49:33 -0500 Subject: Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt From: Martin Josefsson To: "Prakash K. Cheemplavam" Cc: Jens Axboe , Nick Piggin , linux-kernel@vger.kernel.org In-Reply-To: <3FAA5CCB.5030902@gmx.de> References: <20031106130030.GC1145@suse.de> <3FAA4737.3060906@cyberone.com.au> <20031106130553.GD1145@suse.de> <3FAA4880.8090600@cyberone.com.au> <20031106131141.GE1145@suse.de> <3FAA4D48.6040709@gmx.de> <20031106133136.GA477@suse.de> <3FAA5043.8060907@gmx.de> <20031106134713.GA798@suse.de> <3FAA5397.6010702@gmx.de> <20031106135134.GA1194@suse.de> <3FAA5CCB.5030902@gmx.de> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-6xzSgViLUZg+I9T7tocU" Message-Id: <1068144567.5499.96.camel@tux.rsn.bth.se> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Thu, 06 Nov 2003 19:49:27 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-6xzSgViLUZg+I9T7tocU Content-Type: multipart/mixed; boundary="=-v98Cm3vCKGnJ6dSFlH93" --=-v98Cm3vCKGnJ6dSFlH93 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2003-11-06 at 15:38, Prakash K. Cheemplavam wrote: > Ok, I found the bugger: It *IS* the sheduler. I tried elevator=3Ddeadline= =20 > and all stuttering went away. Before I was using as. mm1 used default=20 > sheduler (as I think) and ther eno probs. So the (updated?) as sheduler=20 > in mm2 has a problem... Can you run the attached script when you repeat the test? With both elevator=3Ddeadline and without. ./diskstat.sh hdc Your problem sounds a little like the one I'm seeing, only I'm seeing it with both deadline and as. I can't really see if I'm loosing timer-interrupts or not since the only way I've found to reproduce it is to recieve a file via network and write it to disk, and that generates lots of interrupts... --=20 /Martin --=-v98Cm3vCKGnJ6dSFlH93 Content-Disposition: attachment; filename=diskstat.sh Content-Type: text/x-sh; name=diskstat.sh; charset=iso-8859-15 Content-Transfer-Encoding: base64 Iy9iaW4vYmFzaA0KDQpudW09MA0KZm9yIGxvb3AgaW4gYSBiIGMgZCBlIGYgZyBoIGkgaiBrDQpk bw0KCW9sZFskbnVtXT0wDQoJbnVtPSQoKCRudW0gKyAxKSkNCmRvbmUNCg0Kcm93PTANCg0Kd2hp bGUgdHJ1ZTsgZG8gZ3JlcCAiJDEgIiAvcHJvYy9kaXNrc3RhdHMgfCBhd2sgJ3twcmludCAkNCwk NSwkNiwkNywkOCwkOSwkMTAsJDExLCQxMiwkMTMsJDE0fSc7IHNsZWVwIDE7IGRvbmUgfCB3aGls ZSByZWFkIGEgYiBjIGQgZSBmIGcgaCBpIGogaw0KZG8NCglpZiBbICQoKCRyb3cgJSAzMCkpID09 IDAgXTsgdGhlbg0KCQkjZWNobyAtZSAicm93XHRyZWFkc1x0cm1lcmdlXHRyc2VjdFx0cm1zXHRc dHdyaXRlc1x0d21lcmdlXHR3c2VjdFx0d21zXHRcdGlvXHRtc1x0bXMyIg0KCQllY2hvIC1lICJy b3dcdHJlYWRzXHRybWVyZ2VcdHJzZWN0XHRybXNcdHdyaXRlc1x0d21lcmdlXHR3c2VjdFx0d21z XHRpb1x0bXNcdG1zMiINCglmaQ0KCXJvdz0kKCgkcm93ICsgMSkpDQoNCgludW09MA0KCWZvciBs b29wIGluIGEgYiBjIGQgZSBmIGcgaCBpIGogaw0KCWRvDQoJCWlmIFsgJHtvbGRbJG51bV19ID09 IDAgXTsgdGhlbg0KCQkJb2xkWyRudW1dPSR7IWxvb3B9DQoJCQlkaWZmWyRudW1dPTANCgkJZWxz ZQ0KCQkJZGlmZlskbnVtXT0kKCgkeyFsb29wfSAtICR7b2xkWyRudW1dfSkpDQoJCQlvbGRbJG51 bV09JHshbG9vcH0NCgkJZmkNCgkJbnVtPSQoKCRudW0gKyAxKSkNCglkb25lDQoNCgllY2hvIC1l ICIkcm93XHQke2RpZmZbMF19XHQke2RpZmZbMV19XHQke2RpZmZbMl19XHQke2RpZmZbM119XHQk e2RpZmZbNF19XHQke2RpZmZbNV19XHQke2RpZmZbNl19XHQke2RpZmZbN119XHQkaVx0JHtkaWZm WzldfVx0JHtkaWZmWzEwXX0iDQpkb25lDQo= --=-v98Cm3vCKGnJ6dSFlH93-- --=-6xzSgViLUZg+I9T7tocU Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQA/qpe2Wm2vlfa207ERAp7zAJsHroyATsjK1H2fYY2ySY3FNNuk0wCcCxAT 1B2TTl0D5k1waHPxRftkUrs= =TEbZ -----END PGP SIGNATURE----- --=-6xzSgViLUZg+I9T7tocU--