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=-16.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 0D671C433DB for ; Tue, 9 Feb 2021 12:17:59 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9234764EAC for ; Tue, 9 Feb 2021 12:17:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9234764EAC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=O/OGVxDmkXIPfGt2xUN/s7RNkCGSL3/ov2NjUbMSzOg=; b=noUofjVzuMeErEyxNXG29IJP/ PM3J434t2IrCw/dA47hqRB8qWuKhB60BKjVVM8lsygoBkahjrlJeyIaonKgQIWdthXpt4/fNBqBbN hVH6XjpFwEG7cNBJVVgLdD7aJ8jUtxsgACvWks4km/tUjYjGSSmNZzIKoCza53ciZLNzGUoBoY9vr MNCe/9c7G5bS8OloCfETj4g6ptErIWiJt9Bsj5aRysm50T5to1DQVF/httWeci/cMzTCcSdBxPyEU KMvmMOi28YY+oezFDtTUvx8TGacmIiZ/4p1auFeAU0WJE1TD3juvVAhcoARgwjwcFT6rsa9e0yB3l m4a+Edxxw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9Rwa-0006ZZ-P0; Tue, 09 Feb 2021 12:16:36 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9RwX-0006Z5-HV for linux-arm-kernel@lists.infradead.org; Tue, 09 Feb 2021 12:16:34 +0000 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 3537CED1; Tue, 9 Feb 2021 04:16:27 -0800 (PST) Received: from [10.37.8.18] (unknown [10.37.8.18]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3E5F43F73B; Tue, 9 Feb 2021 04:16:25 -0800 (PST) Subject: Re: [PATCH v12 7/7] kasan: don't run tests in async mode To: Catalin Marinas References: <20210208165617.9977-1-vincenzo.frascino@arm.com> <20210208165617.9977-8-vincenzo.frascino@arm.com> <20210209120241.GF1435@arm.com> From: Vincenzo Frascino Message-ID: <0e373526-0fa8-c5c0-fb41-5c17aa47f07c@arm.com> Date: Tue, 9 Feb 2021 12:20:28 +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: <20210209120241.GF1435@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210209_071633_661199_7405FA65 X-CRM114-Status: GOOD ( 18.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Branislav Rankov , Marco Elver , Lorenzo Pieralisi , Andrey Konovalov , Evgenii Stepanov , linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, Alexander Potapenko , linux-arm-kernel@lists.infradead.org, Andrey Ryabinin , Andrew Morton , Will Deacon , Dmitry Vyukov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2/9/21 12:02 PM, Catalin Marinas wrote: > On Mon, Feb 08, 2021 at 04:56:17PM +0000, 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 > > That's missing your SoB. > Yes, I will add it in the next iteration. >> 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); > > I think we can still run the kasan tests in async mode if we check the > TFSR_EL1 at the end of each test by calling mte_check_tfsr_exit(). > IIUC this was the plan for the future. But I let Andrey comment for more details. -- Regards, Vincenzo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel