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=-15.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 9B29CC76191 for ; Mon, 15 Jul 2019 21:12:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A5BA2173C for ; Mon, 15 Jul 2019 21:12:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563225149; bh=XAxw2xTdhNovu0xJNJcWljjxiZOoBif6tYcjxMF2+zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FToS2zAzn73yrVSEQ+LadmU2rdZq16bqjfT3semWaUbYKkoLwsd2PY/iF07GMbhg0 xpz4gKszQgih7lMv1U1ghEtYz83pX7C5eafYtVLlC7DQSHygRlMjUJklem8AXw8Zm3 /XYkDe5iwylj/WiSOAfH+Br7Db+7XgXZSJBqcz7Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732552AbfGOVM2 (ORCPT ); Mon, 15 Jul 2019 17:12:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:43238 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731927AbfGOVM1 (ORCPT ); Mon, 15 Jul 2019 17:12:27 -0400 Received: from quaco.ghostprotocols.net (179-240-129-12.3g.claro.net.br [179.240.129.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 228622173B; Mon, 15 Jul 2019 21:12:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563225146; bh=XAxw2xTdhNovu0xJNJcWljjxiZOoBif6tYcjxMF2+zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A9SeosM9IU7AVXJW5x3EycZbG40QclUJ55U3ndA8hUfpod42plgxpE6cvQoBe5L5B J4+gaE21rkGs8BpfCDsljryBCMQIaSJ7vd0weKeZm5xH5Nbusll20z4BDInszFkmE1 A6qwju4OPrYlewuRnA+lGBFUKQDQyWtcY/eskgEg= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , Alexei Starovoitov , Daniel Borkmann Subject: [PATCH 02/28] perf test: Auto bump rlimit(MEMLOCK) for BPF test sake Date: Mon, 15 Jul 2019 18:11:34 -0300 Message-Id: <20190715211200.10984-3-acme@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190715211200.10984-1-acme@kernel.org> References: <20190715211200.10984-1-acme@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo I noticed that the 'perf test bpf' was failing: # perf test bpf 41: BPF filter : 41.1: Basic BPF filtering : Skip 41.2: BPF pinning : Skip 41.3: BPF prologue generation : Skip 41.4: BPF relocation checker : Skip # ulimit -l 64 # Using verbose mode we get just a line bout -EPERF being returned from libbpf's bpf_load_program_xattr(), that ends up being used in 'perf test bpf' initial program loading capability query: Missing basic BPF support, skip this test: Operation not permitted Not that informative, but on a separate problem when creating BPF maps bumping rlimit(MEMLOCK) helped, so I tried it here as well, works: # ulimit -l 128 # perf test bpf 41: BPF filter : 41.1: Basic BPF filtering : Ok 41.2: BPF pinning : Ok 41.3: BPF prologue generation : Ok 41.4: BPF relocation checker : Ok # So use the recently added rlimit__bump_memlock() helper: # ulimit -l 64 # perf test bpf 41: BPF filter : 41.1: Basic BPF filtering : Ok 41.2: BPF pinning : Ok 41.3: BPF prologue generation : Ok 41.4: BPF relocation checker : Ok # ulimit -l 64 # I.e. the bumping of memlock is restricted to the 'perf test' instance, not changing the global value. Cc: Adrian Hunter Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-b9fubkhr4jm192lu7y8hgjvo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/builtin-test.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 66a82badc1d1..c3bec9d2c201 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -21,6 +21,7 @@ #include #include "string2.h" #include "symbol.h" +#include "util/rlimit.h" #include #include #include @@ -727,6 +728,11 @@ int cmd_test(int argc, const char **argv) if (skip != NULL) skiplist = intlist__new(skip); + /* + * Tests that create BPF maps, for instance, need more than the 64K + * default: + */ + rlimit__bump_memlock(); return __cmd_test(argc, argv, skiplist); } -- 2.21.0