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=-15.8 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,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 AD877C433DB for ; Tue, 9 Feb 2021 12:03:53 +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 51F6764E6F for ; Tue, 9 Feb 2021 12:03:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51F6764E6F 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:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=P2dkIV+lZB1KVQ6XnX5SnDyY0dYsDp6cksCEHtDhtMM=; b=AniUBIj2IygF/YQJmcV2ukdD1 rTq6kJmt0hlnD2BPUDCHr/ZpSJxrMo3HxcEgfzFLp6OpA+hyjDkct8hlqs5e7zLsiYHYIHluwX52x PnXFizC5MYEMRfxTwPxTk4CIey57kPm2efihI83I9SmHjm3kDcSbAUZuu9QnYCE+1JDvIaAZru+P6 +/gwMWcGaS8Jhm2FGEjJHa5P3E3ZHEhO1QPfIILpovY31vZST/ORxQa7oWQFytHZJt6IG7u+kGhc4 XwZhv2dqTS2pYRieaPjXDBK69Nac5B4Il7z07zBUy85EeM2LAVaRyP8elcvxad7jrX2vz4oD8wQXT IDIMNenrg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9RjG-0004xr-F3; Tue, 09 Feb 2021 12:02:50 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9RjE-0004xD-Gb for linux-arm-kernel@lists.infradead.org; Tue, 09 Feb 2021 12:02:49 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9C57E64DB1; Tue, 9 Feb 2021 12:02:44 +0000 (UTC) Date: Tue, 9 Feb 2021 12:02:42 +0000 From: Catalin Marinas To: Vincenzo Frascino Subject: Re: [PATCH v12 7/7] kasan: don't run tests in async mode Message-ID: <20210209120241.GF1435@arm.com> References: <20210208165617.9977-1-vincenzo.frascino@arm.com> <20210208165617.9977-8-vincenzo.frascino@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210208165617.9977-8-vincenzo.frascino@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210209_070248_645833_FD822228 X-CRM114-Status: GOOD ( 14.89 ) 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 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. > 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(). -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel