Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932136AbbLNRsK (ORCPT ); Mon, 14 Dec 2015 12:48:10 -0500 Received: from casper.infradead.org ([85.118.1.10]:47374 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753162AbbLNRov (ORCPT ); Mon, 14 Dec 2015 12:44:51 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , Jiri Olsa , Adrian Hunter , David Ahern , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 05/16] perf test: Fix hist testcases when kptr_restrict is on Date: Mon, 14 Dec 2015 14:44:30 -0300 Message-Id: <1450115081-22962-6-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1450115081-22962-1-git-send-email-acme@kernel.org> References: <1450115081-22962-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1798 Lines: 50 From: Namhyung Kim Currently if kptr_restrict is enabled, all hist tests failed with segfaults. This is because machine__create_kernel_maps() in setup_fake_machine() failed in that situation, and it called machine__delete() on the error path. But outer callers again called machines__exit() causing double free for the host machine. Signed-off-by: Namhyung Kim Cc: Jiri Olsa Cc: Adrian Hunter Cc: David Ahern Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1450062673-22312-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/hists_common.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/perf/tests/hists_common.c b/tools/perf/tests/hists_common.c index 46f453b1de60..bcfd081ee1d2 100644 --- a/tools/perf/tests/hists_common.c +++ b/tools/perf/tests/hists_common.c @@ -88,8 +88,8 @@ struct machine *setup_fake_machine(struct machines *machines) } if (machine__create_kernel_maps(machine)) { - pr_debug("Not enough memory for machine setup\n"); - goto out; + pr_debug("Cannot create kernel maps\n"); + return NULL; } for (i = 0; i < ARRAY_SIZE(fake_threads); i++) { @@ -155,7 +155,6 @@ struct machine *setup_fake_machine(struct machines *machines) out: pr_debug("Not enough memory for machine setup\n"); machine__delete_threads(machine); - machine__delete(machine); return NULL; } -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/