From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81267C76192 for ; Tue, 16 Jul 2019 08:48:50 +0000 (UTC) Received: from dpdk.org (dpdk.org [92.243.14.124]) by mail.kernel.org (Postfix) with ESMTP id 451BE2173C for ; Tue, 16 Jul 2019 08:48:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 451BE2173C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=dpdk.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dev-bounces@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 95A09324D; Tue, 16 Jul 2019 10:48:49 +0200 (CEST) Received: from inbox.dpdk.org (xvm-172-178.dc0.ghst.net [95.142.172.178]) by dpdk.org (Postfix) with ESMTP id 120312BBE for ; Tue, 16 Jul 2019 10:48:49 +0200 (CEST) Received: by inbox.dpdk.org (Postfix, from userid 33) id EABD5A0613; Tue, 16 Jul 2019 10:48:48 +0200 (CEST) From: bugzilla@dpdk.org To: dev@dpdk.org Date: Tue, 16 Jul 2019 08:48:48 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: core X-Bugzilla-Version: 18.11 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: johan.kallstrom@ericsson.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 Subject: [dpdk-dev] [Bug 322] eal: ctrl thread calculation assumes 1:1 mapping between cpu and lcore id X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" https://bugs.dpdk.org/show_bug.cgi?id=3D322 Bug ID: 322 Summary: eal: ctrl thread calculation assumes 1:1 mapping between cpu and lcore id Product: DPDK Version: 18.11 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: core Assignee: dev@dpdk.org Reporter: johan.kallstrom@ericsson.com Target Milestone: --- ctrl thread calculation assumes 1:1 mapping between cpu and lcore id. This is not the case when --lcores and the optional cpuset mask is used.=20 The calculation introduced in c3568ea376700 (and 18.11.2 23a9f69ed3d9) assu= mes a 1:1 mapping between cpu and lcore id. This is not the case when --lcores = and the optional cpuset mask is used. The calculation fails when --lcores and cpuset mask is set so cpu and lcore= no longer maps 1:1. The code silently started on the wrong physical thread with following eal arguments(if not cpusets are used to limit the thread affinity): --master-lcore 0 --lcores (0,19)@(19,1,2,3) If cpusets are used(and the calculated thread is outside the cpuset) eal fa= ils to start with the following output: EAL: Failed to create thread for interrupt handling EAL: FATAL: Cannot init interrupt-handling thread EAL: Cannot init interrupt-handling thread EAL: Error - exiting with code: 1 Cause: Invalid EAL arguments: -1 - Unknown error -1 --=20 You are receiving this mail because: You are the assignee for the bug.=