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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 20790C433DB for ; Sat, 30 Jan 2021 16:59:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE88564D9F for ; Sat, 30 Jan 2021 16:59:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231303AbhA3Q6o (ORCPT ); Sat, 30 Jan 2021 11:58:44 -0500 Received: from foss.arm.com ([217.140.110.172]:38484 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230045AbhA3Q6n (ORCPT ); Sat, 30 Jan 2021 11:58:43 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B6BCB1042; Sat, 30 Jan 2021 08:57:57 -0800 (PST) Received: from [10.37.8.6] (unknown [10.37.8.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id F0B243F73D; Sat, 30 Jan 2021 08:57:54 -0800 (PST) Subject: Re: [PATCH v11 5/5] kasan: don't run tests in async mode To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com Cc: Andrew Morton , Catalin Marinas , Will Deacon , Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Marco Elver , Evgenii Stepanov , Branislav Rankov , Andrey Konovalov References: <20210130165225.54047-1-vincenzo.frascino@arm.com> <20210130165225.54047-6-vincenzo.frascino@arm.com> From: Vincenzo Frascino Message-ID: Date: Sat, 30 Jan 2021 17:01:48 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210130165225.54047-6-vincenzo.frascino@arm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/30/21 4:52 PM, Vincenzo Frascino wrote: > From: Andrey Konovalov > > Asynchronous KASAN mode doesn't guarantee that a tag fault will be > detected immediately and causes tests to fail. Forbid running them > in asynchronous mode. > > Signed-off-by: Andrey Konovalov Reviewed-by: Vincenzo Frascino With: [ 18.283644] 1..1 [ 18.284167] # Subtest: kasan [ 18.284444] 1..45 [ 18.295536] # kmalloc_oob_right: can't run KASAN tests in async mode [ 18.296873] # kmalloc_oob_right: failed to initialize: -1 [ 18.303714] not ok 1 - kmalloc_oob_right [ 18.316439] # kmalloc_oob_left: can't run KASAN tests in async mode [ 18.319466] # kmalloc_oob_left: failed to initialize: -1 [ 18.325001] not ok 2 - kmalloc_oob_left Tested-by: Vincenzo Frascino > --- > lib/test_kasan.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/lib/test_kasan.c b/lib/test_kasan.c > index 7285dcf9fcc1..f82d9630cae1 100644 > --- a/lib/test_kasan.c > +++ b/lib/test_kasan.c > @@ -51,6 +51,10 @@ static int kasan_test_init(struct kunit *test) > kunit_err(test, "can't run KASAN tests with KASAN disabled"); > return -1; > } > + if (kasan_flag_async) { > + kunit_err(test, "can't run KASAN tests in async mode"); > + return -1; > + } > > multishot = kasan_save_enable_multi_shot(); > hw_set_tagging_report_once(false); > -- Regards, Vincenzo