From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755873AbZGNRXU (ORCPT ); Tue, 14 Jul 2009 13:23:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755756AbZGNRXU (ORCPT ); Tue, 14 Jul 2009 13:23:20 -0400 Received: from xc.sipsolutions.net ([83.246.72.84]:37298 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755515AbZGNRXT (ORCPT ); Tue, 14 Jul 2009 13:23:19 -0400 Subject: Re: binary ftrace buffer format From: Johannes Berg To: LKML Cc: Ingo Molnar , Frederic Weisbecker , Steven Rostedt In-Reply-To: <1247520189.4071.4.camel@johannes.local> References: <1247520189.4071.4.camel@johannes.local> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-ajMeK1yXFZr3UOjk3bAL" Date: Tue, 14 Jul 2009 19:22:47 +0200 Message-Id: <1247592167.7178.25.camel@johannes.local> Mime-Version: 1.0 X-Mailer: Evolution 2.26.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-ajMeK1yXFZr3UOjk3bAL Content-Type: text/plain Content-Transfer-Encoding: quoted-printable So, I've gotten this far, manually: This was on a powerpc 64-bit (big endian) machine, the contents of per_cpu/trace_pipe_raw: 00000000 00 00 02 24 15 cd b4 a0 00 00 00 00 00 00 0f f0 page header: tim= e 2354.007880864, 4080 bytes 00000010 00 00 00 00 item header: type_len =3D=3D 0, time offset =3D = 0 00 00 00 94 item length: 148 bytes 00 82 event ID 130 11 02 00 00 00 00 00000020 00 00 00 00 00 00 00 00 c0 00 00 01 03 ca 1a 00 00000030 00 1a 70 00 00 00 01 00 00 80 39 e4 01 00 00 00 00000040 00 00 00 00 00 00 01 09 01 00 7c 10 80 00 ec 0f 00000050 80 00 00 00 00 00 01 00 00 00 ff ff ff ff 1a ff 00000060 ff ff 02 ff ff ff 20 34 00 00 e2 34 00 00 c4 ca 00000070 ff ff 94 c9 ff ff 66 f3 ff ff e6 f2 ff ff 00 00 00000080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000090 00 00 00 00 00 00 ff ff ff ff ff ff ff ff ff ff 000000a0 ff ff 00 00 00 00 00 00 item header: type_len =3D=3D 0, time o= ffset =3D=3D 0 88 78 3d 40 item length??? 00 82 event ID 130 11 02 at which point it stops making sense. What's with that item length? Can anyone help? johannes --=-ajMeK1yXFZr3UOjk3bAL Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJKXL7kAAoJEODzc/N7+QmafxAP/0kF1LelhAkv6SRagY7BDzKz EEThUzFtvFK7kW/PGl8GhW4SDYyzCKt5xdjXVC50yJ1WZkpMB3hlxjFI0Ah3mUQS JcYUbXnX8bV7qBmhY4M2l20RG/hXW2+xSx79ZfOWGyVwj6i+zTYFPpe8BYyI8EZU cgxiYxLzj9sB09TqLgHYCr3hvUopJclu5AOHxCzZY2bKWdTEzAyx8uQvRUlPB1+r d03fyS5vUbYdS+76Uma76QoFs3xWbMTKYz+nghgDg41s1c0BcDLjmCh+FQQ7mnRs tAGM8Vnkc8SMXxdjDOe/8Yl8mqygXQV3LyHRec2qmgpgf7KzzwGTRsX58uT/C0mX 8L8Ihwac9J6Gw9REB0X5w5ITk7aqmWF8VeOkBgY4vbBHxpCd8fxb+qHUT3g9opDd 1gPR3p1Aay/ffdzsMnCIDKsdDADjhnQbEsmkhCyBzbmHMgp+1FjeD7CveEvc3Esk OtDRGr6wDjpE3sFNrCKis6PRDUYmsh3TR5hN8dvkTdF4wYz6hh3asgY3mMttGxP4 nvHa+6duXh8Z+/UYG23L7wteO1j+JpfyPTc5Hbqc9l9EIJiJoLglEyzP8hBpt1fK i5R59b46HVXOZorf+bQc3Nd4p7PgQSnExvGWROiCSET1GGW2LBQy9o1CQFr7CYou 6LOyiCyavU70VkV4xwp3 =SZAG -----END PGP SIGNATURE----- --=-ajMeK1yXFZr3UOjk3bAL--