Received: by 2002:a6b:fb09:0:0:0:0:0 with SMTP id h9csp3099371iog; Mon, 27 Jun 2022 09:06:35 -0700 (PDT) X-Google-Smtp-Source: AGRyM1ue5aeW3h8dhYKilJtZhZ090aRezO1Gw4Xy9jsAdgF3e0UOfsIOYl9xWyFDQvsy7OGdQ5qm X-Received: by 2002:a05:6402:388c:b0:435:548c:177e with SMTP id fd12-20020a056402388c00b00435548c177emr17523698edb.231.1656345995147; Mon, 27 Jun 2022 09:06:35 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1656345995; cv=pass; d=google.com; s=arc-20160816; b=xznCzAr/gCLDZRGkKwtYgxhJKRN2kPkMd8daQJd6ycB3MqlFJTIkxCMovLuhM1Ra8K 3acUddcKS0t/8vY2j2z80r/ifOSK9/qNDa4oiwimHhJo8MTnnvQK+gvVi6R4OJEQRaYK V+NxICCN1C7mY3tDdb6sbhxtXbO5WWCqIuekmrC9KMT8+q+T61oYm+LGw+2jrm36rYmR KWkzC14gRrQLdGQpN2JjAqueOkkdwzuu4jrnb+bdC5/QpyMCSbNfM21QKePFo2bXZvrE JtI/9XEnI03tjBDshbsli7ogOr0BZufgvZ/OS3HLZXoskR9omW1a4Qgu2HYK12lInGsR tQqQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature:dkim-signature; bh=6EScZzWEkxoL55gUWiHtp6L6r1l0Ga5NI+JzAfsv7pI=; b=wZY5NGwxV93nwcdCFY+r8JxUvIJ/HVv+YBPfvMiuyMtHO9FhkkQ67VMXALvD5vPM7S Sp0/dVAUhXbsQcGNc9TrlL11+6halgcfPgnwiB0B0LVr0TZco1T0HqpHcZiaQtsbA8e/ ynV9m9xab8ZcJq2bCBUmwXsMeisKDPutYOSJ62nydPICjsZSwBWNGOMR+zo9niuwn4RE V1WrbzoB8mnhb6Epz/qAdcIKwC5/w81QxL05648IB3D8/VfLeG+V2XjeJ18JiK6sgrlR 1NtKQ0ylpkLaP5pxGxXt5DguzLCoqqHrDIXPM0JliFL1k4kd+QI57dbJXeNAf+QFbUTU NthA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2021-07-09 header.b=IDbIM+57; dkim=pass header.i=@oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=htqyhsDb; arc=pass (i=1 spf=pass spfdomain=oracle.com dkim=pass dkdomain=oracle.com dmarc=pass fromdomain=oracle.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f19-20020a056402069300b00435a08a355dsi11603541edy.404.2022.06.27.09.06.02; Mon, 27 Jun 2022 09:06:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2021-07-09 header.b=IDbIM+57; dkim=pass header.i=@oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=htqyhsDb; arc=pass (i=1 spf=pass spfdomain=oracle.com dkim=pass dkdomain=oracle.com dmarc=pass fromdomain=oracle.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238593AbiF0PvQ (ORCPT + 99 others); Mon, 27 Jun 2022 11:51:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238590AbiF0PvN (ORCPT ); Mon, 27 Jun 2022 11:51:13 -0400 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 59E6018E03 for ; Mon, 27 Jun 2022 08:51:11 -0700 (PDT) Received: from pps.filterd (m0246617.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25RDdI52012938; Mon, 27 Jun 2022 15:51:07 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=corp-2021-07-09; bh=6EScZzWEkxoL55gUWiHtp6L6r1l0Ga5NI+JzAfsv7pI=; b=IDbIM+57P7emSvTDhc0KePI3FsIIJaN9zLUFiO+8bgauGGXSkSsGG/hR98SsOyPEo8gz ktHtPFqMceq7I5w3O6lUiopBzb49AJ2EVdcIDvnV5ntwvcpymMRrbj6lEYqw+E8kVhA0 DkiCSS8oaaOcC6BOgZPW6VzbHS95JrfdtnNIlf9vtCjtfLx1gEcyKPxLrUK7Ub0Pfyve kZQ8/14Zln9c/uyXL03gbDxtmfuWqYPW0ma22oP1HtpcWwi/88x3DYqy2URObieqJeKg Xolfnv4IjjgxKTJCJURKhCIFAGLv5vnEuyF7z4SEOrjq1thMPYaAE0a58sbWP5U1Yz1h wA== Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.appoci.oracle.com [138.1.114.2]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3gwtwu3n5b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 27 Jun 2022 15:51:07 +0000 Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.16.1.2/8.16.1.2) with SMTP id 25RFUn7D026053; Mon, 27 Jun 2022 15:51:06 GMT Received: from nam10-mw2-obe.outbound.protection.outlook.com (mail-mw2nam10lp2102.outbound.protection.outlook.com [104.47.55.102]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com with ESMTP id 3gwrt1jgvx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 27 Jun 2022 15:51:06 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=gEi02aLR+IEE1h2w0RTtPfQyNwa9UQ5JnAMTX4BzlOP0e+40wfIW+cXkN2vuogcuexPu5qNHqTUtvHfDQfLLVzmq/tcIupugmmH63ezwdEg12/fm3PhenPCgssTnAaI6ed6ktR9RIyUUrqRMKPqWRI42K8F/A1VfdmEp6KYxKA/LGDcArn/561rGvnXgiusEHAXL9eK7OKJQk+V3TCp8Hcb9H2fpjaVN5g0RTlGERSW8rW9OWfIzmw7mCdMyjxSSxN1PkzFQNe1+jezcqwnCVPqcZlYVhTLidB4xNafVEkbkkNzwYFIazt3N5Zk9kA72iIhKTPB8NIYrsLQdb7ukfQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=6EScZzWEkxoL55gUWiHtp6L6r1l0Ga5NI+JzAfsv7pI=; b=itfLkgOQ0Kpj6B//pkgaVwJBccHw/TMNZQnpgBc2T8lE1Ah7EHd2DyVK/uO1qQaqdmLHTDyZ1F/Eh+ZxbMt9Kvqf9yvROIVNSr48cYh2vgWh/UosrndYnRJXc4fdCUXEASZ2rRvZZPV9g8fCK4ZBqFQIc18qC+qT5UiTNnUrY8LNmKdPciWCWDhnXHuTZqu4rBBdnDAlMgDOvTUB9XKNjFyX6dZ16NFM1eXP6ZAXPfw81qUyIDUXq+RFvjbW67UNNR4DRt/2uFa6ouqP7swrEP3dUM6UNsw8IEFRfqA/PfkqzG2wG2q4RRmavJxrFPTj1LGjxgZWrQ57FLQEhUfBog== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=6EScZzWEkxoL55gUWiHtp6L6r1l0Ga5NI+JzAfsv7pI=; b=htqyhsDbFj/dYlJknVKxABsEmm57HEgUi3x5o7GHBb6zSunjJPEgXs4zcaUmhyDARMemi7zvYTVLjpxqEKWrAAVg3PT6Tpp+qSCWHErE4F1kZRFlnBuh92Td4r+B4NY2pipBV6PDhsZMWepoxxg2uPokDBBSB5bZqr1hI4UEsfs= Received: from BN0PR10MB5128.namprd10.prod.outlook.com (2603:10b6:408:117::24) by CH0PR10MB4971.namprd10.prod.outlook.com (2603:10b6:610:c3::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5373.17; Mon, 27 Jun 2022 15:51:04 +0000 Received: from BN0PR10MB5128.namprd10.prod.outlook.com ([fe80::9920:1ac4:2d14:e703]) by BN0PR10MB5128.namprd10.prod.outlook.com ([fe80::9920:1ac4:2d14:e703%5]) with mapi id 15.20.5373.018; Mon, 27 Jun 2022 15:51:04 +0000 From: Chuck Lever III To: Steven Rostedt , John 'Warthog9' Hawley CC: LKML Subject: Re: possible trace_printk() bug in v5.19-rc1 Thread-Topic: possible trace_printk() bug in v5.19-rc1 Thread-Index: AQHYgZTiaV2APa8LiECz6bYrBgXq161SKdYAgAAAwoCAAdkwgIAAXpIAgAMb4QCAB70xgIABL6QAgAAImQCAABIPAIAARgOAgAEwG4CAAXpYAIAAAhIA Date: Mon, 27 Jun 2022 15:51:04 +0000 Message-ID: <0FA59723-8784-4D28-AB5B-049D605095B4@oracle.com> References: <20220616113400.15335d91@gandalf.local.home> <20220617155019.373adda7@gandalf.local.home> <3BAD2CD9-3A34-4140-A28C-0FE798B83C41@oracle.com> <355D2478-33D3-4046-8422-E512F42C51BC@oracle.com> <20220624190819.59df11d3@rorschach.local.home> <3EB14A14-767B-4B66-9B28-97DDE7EECFD2@oracle.com> <20220625134552.08c1a23a@rorschach.local.home> <20220625190105.750bbb0a@rorschach.local.home> <20220627114340.4d89842b@gandalf.local.home> In-Reply-To: <20220627114340.4d89842b@gandalf.local.home> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3696.100.31) x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: e436ba77-b1b2-4d31-90d1-08da5854d7d2 x-ms-traffictypediagnostic: CH0PR10MB4971:EE_ x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BN0PR10MB5128.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(346002)(39860400002)(136003)(366004)(396003)(376002)(91956017)(86362001)(4326008)(26005)(53546011)(8676002)(66556008)(6506007)(71200400001)(76116006)(6512007)(38070700005)(66946007)(64756008)(66446008)(6486002)(478600001)(122000001)(66476007)(4744005)(8936002)(5660300002)(38100700002)(36756003)(41300700001)(33656002)(966005)(2616005)(110136005)(2906002)(316002)(186003)(45980500001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?OsLpW/jVPm070Ca13Z7sAGm5sD3zI4FA9QaWEUXDd2f2H7v2SXS1WapPUfbg?= =?us-ascii?Q?da5BzMq2HH9PIKFf93hv+NpOhBEknODQGsaPBnpPtV7JJLHwCEu+xLFm9MEM?= =?us-ascii?Q?qjAy29LciVruzyeu9JbhO4F//HU8D0D25GL3UO9mLG0ObJMy0C7rCE1cYiYk?= =?us-ascii?Q?K+HRdgy+2Eu4jt1D2Ow8YEwpzOt63cTL9PSMGWO1razSr/12tuC71VHNcpqs?= =?us-ascii?Q?Hv3OK3cgtFYEMq+IC3NJEIZ7rB4+Lw3bSuGTHZ/0bKJKYPHHsaURAISb7cpf?= =?us-ascii?Q?gCr9AGpba9czEtveH7sFifu+J4mscihVNreCZ3Q1CCUZQbwnjyeXAE61I//3?= =?us-ascii?Q?e0MjUS8O8SElBuxuDSi1ZBTA8tjHXI3ldHpkXqXFY1SelcC+zZ6F6mj2g/a+?= =?us-ascii?Q?wu+nycXbvhuarGc9zr/6SSOoT+HFmrsnIbREMTEl0uW/HvSoNStbOOZUTE6s?= =?us-ascii?Q?noLOlRxg7FWmO4V90aZzAu7vSQpYP5UHoGbPR4uSymaJyaOM7SjE+5i7jf1e?= =?us-ascii?Q?OPrmCbbFy0vdTIQbpk2+ahMW1IAGQo464+bR6g2NJJWmB29NxLF6aZEFtvRj?= =?us-ascii?Q?C8+QMFFOFWK/+4uqW1X5gFnOlyIYxO02Nk6Nb+dn2sNHIV/v/G8+V5zb8dtI?= =?us-ascii?Q?DIMlHrkNdNq6DP2xZUW82iQ5bS6W/rgI+rhahBeIQ6SOoLcRhX0YqYd5F3EE?= =?us-ascii?Q?mNSJIwbpX3ra0BbNgNjzLhybvaNuj3sPhZsx3c/MadVU3GYuT/7+auOYF9pR?= =?us-ascii?Q?MljlHu5tGw8UfP/ho+WuoEj2rXeJdvZP8juSxj9wXskQDyNQxVoHU6AKsatf?= =?us-ascii?Q?NHNEqzM8E27FZQK5YaYgQB7eo2kaFndxyqc609kaJLK27ErvBPl0vQ3U6+G2?= =?us-ascii?Q?sqfCBqvPp/3QbJL/5vI+nV48dMgQWRFmUdvXmW/1PMwcweQMZl2ugV96Jbzk?= =?us-ascii?Q?D9XY2R5hGFjm+ewkD9/zMorOGgYkFMOF27FkUy0MSt8K8X+8kM5lx/YxoYtp?= =?us-ascii?Q?LcbRYA0t+V/gxIBRnqYv505Ep+gYVRUuEXCBNjwSphCsZX+yeWYUy9nD4/4R?= =?us-ascii?Q?MGvKnvYgUwpsEBBLzdD6xBv7Om39QzGUF8aijzlobaQAnB5UHOeBg2r2bmR7?= =?us-ascii?Q?JRw1NSC9WNhA0S0Q5niLE5hzKWqTKFutGzGI5m/LOw3leJqRtF7lzl+1gT2c?= =?us-ascii?Q?2KRQxx7Rv3NUtP9fXIqG7Y/Qm2D85Wjc2qzmMyGdU3RTow5bz3NSnde+2qLh?= =?us-ascii?Q?eads8yGbLTloph6i6tqUa649lSC5Lh4ElLJ0znLzNSVTU9GRkimhGSK8t0DE?= =?us-ascii?Q?cD5G/mIsQE1gRl4zWRfIMt4YW0U4mheRsy7p64eaCAPlKEu+ge/qOYSq2JyI?= =?us-ascii?Q?WeljJEyrTb88px275DFFc3Lr/Fy2P1HGkkCwkY6Grw1UZBNGmZAFg+B9MEj9?= =?us-ascii?Q?K+ZJzqScWm77kPIe5Lc0pu/J+/SUmfTWW4RWsm5Ai0N/c5m+zLJSSc9Yyz4G?= =?us-ascii?Q?Ugt7fVW5L4U90AdM7+/Y+EQAkcYomjXUjklMBdjVl1Si0r9n3NMUdcCEmcOm?= =?us-ascii?Q?koRulcb0/6cqmpaTalcNhOqhWnjxq8R+u8qXpiGZ5lU80R6ZlCM84aAW/u5y?= =?us-ascii?Q?xw=3D=3D?= Content-Type: text/plain; charset="us-ascii" Content-ID: <8D2BB7684AF0AD418A03C6A06882478E@namprd10.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN0PR10MB5128.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: e436ba77-b1b2-4d31-90d1-08da5854d7d2 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Jun 2022 15:51:04.7588 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: MtwhUyGHYFTwAeNL4/Ybh/0R1gZdTT9735pS88Ui6ELv5aIlwNN36o4JRHiMqv47sqylVr4jD67/ZMLiYGs7Pw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR10MB4971 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.517,18.0.883 definitions=2022-06-27_06:2022-06-24,2022-06-27 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 spamscore=0 malwarescore=0 suspectscore=0 mlxlogscore=999 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2206270067 X-Proofpoint-ORIG-GUID: hvF2qCooLOkXBvAiS5KkKSsDeOhkjGym X-Proofpoint-GUID: hvF2qCooLOkXBvAiS5KkKSsDeOhkjGym X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Jun 27, 2022, at 11:43 AM, Steven Rostedt wrote: >=20 > On Sun, 26 Jun 2022 17:09:31 +0000 > Chuck Lever III wrote: >=20 >> [cel@manet lib]$ cd /usr/lib64/ >> [cel@manet lib64]$ ls libtrace* >> libtracecmd.so.1 libtracecmd.so.1.0.0 libtraceevent.so.1 libtraceeven= t.so.1.2.1 libtracefs.so.1 libtracefs.so.1.1.1 >> [cel@manet lib64]$ >=20 > According to https://trace-cmd.org >=20 > The latest libraries are: >=20 > libtraceevent 1.6.1 > libtracefs 1.4.1 >=20 > I'm guessing you may have a buggy version. I checked with dnf. I have the latest versions provided in Fedora 35, which is still supported. I'd like to avoid having to maintain the latest version of the tool and its libraries by hand on all of my development systems. -- Chuck Lever