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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 392E1CF2587 for ; Sat, 12 Oct 2024 22:49:39 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BAA266B0082; Sat, 12 Oct 2024 18:49:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B5A806B0083; Sat, 12 Oct 2024 18:49:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A21D56B0085; Sat, 12 Oct 2024 18:49:38 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 853986B0082 for ; Sat, 12 Oct 2024 18:49:38 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 947E11601BC for ; Sat, 12 Oct 2024 22:49:31 +0000 (UTC) X-FDA: 82666443468.13.34FCA92 Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) by imf07.hostedemail.com (Postfix) with ESMTP id 124CD40007 for ; Sat, 12 Oct 2024 22:49:29 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=bfs2knTv; spf=pass (imf07.hostedemail.com: domain of andreyknvl@gmail.com designates 209.85.221.52 as permitted sender) smtp.mailfrom=andreyknvl@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1728773305; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=567XFgs0KNnQIhu74l9eLsWryemY/O3KSe7EFbZlnGk=; b=j3aL8X0Am42hAioEyEr9vxCeNfyXK6xCy+yq8mH5NLzdAIiqwV3WDbt8vRIXG9SFhfD8ay CxtWqcVRwIozZaaDv0piy8WKXTsYCqRh7GGsX71ICzbxE24b4qIHz5NyfIQ9L3yfIwRAfE FZa5kNTyi2p9EB5NlcKtSWdsmP+jtz0= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=bfs2knTv; spf=pass (imf07.hostedemail.com: domain of andreyknvl@gmail.com designates 209.85.221.52 as permitted sender) smtp.mailfrom=andreyknvl@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1728773305; a=rsa-sha256; cv=none; b=FlFYlqZbm6bsRdizYO6azptOollc78/BcZzvvE2CsoQYRVk8qNyu7IUeX8tYcLhxqjwsKX A/REvgJ9Cqfo5nQbZYtebzBYszEA1g7l1ozMkjc5Zt8scdTo2XdgaT6TuVydoVTs3/lBZA mvRSuVWGn0Ipv2fNp9zs376/SJoaJ/E= Received: by mail-wr1-f52.google.com with SMTP id ffacd0b85a97d-37d4c482844so1667936f8f.0 for ; Sat, 12 Oct 2024 15:49:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1728773375; x=1729378175; darn=kvack.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=567XFgs0KNnQIhu74l9eLsWryemY/O3KSe7EFbZlnGk=; b=bfs2knTvlN4iBvIrzYNTGaRuZ1INq6qTzrVx/HTwHtxLMq4pgX7SEBprXUUBpx+UBE rAXu57eoErUq85BHZWFDvPZQsDzVAS5w+A+4JwK4/eoFmG9l1hfWcLorfF61SFAwfpLk F6c2klT9LiVzhaEe5cUo7fUitIR7MGIdvcdwxDjHxMuqDGJLOeFeZZd6hNUfKWn4mRtM eYeCrkMvevLlUcUuSI7ZlWvwVvebbdfwhtZOjFmUwMEl4t/wa4hcdUzmChCsEWgd+r7f SRzvOllPHDxWLbwZ2ywNQHHUnuYMyBRBUH4BW8F46N4yO3NQ4fUEHwdameXIe/PSP5NP fazg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728773375; x=1729378175; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=567XFgs0KNnQIhu74l9eLsWryemY/O3KSe7EFbZlnGk=; b=GwC1PpMjqTiC+Wxvt6m2UEpYdZpTpYlqXFf8TmkuqjyYtFPDI11DsrzHAXSUwc/0FL shfBoKx3y9NX/Pp7NkIaGo2oE82m7Hn36kyomoRznHQ8+b012aw1OmzEfBDbAUbmPY/y nEJBCBqbUDacQLVW4483OUprT0CwvytNc5+ggFzxsQrH6ZxsZ7Kq/4Fkd6qK6G6dLoX0 QhP3SzM6Suek4Z4h9Zt5jj9B1bnLv/z4C0J9j57wdc/KKMvdozSg7Od0QwNcDiqiyqri dY6tGLFjG3D93oidF/0K4huJ6OOARcRptuO3IGYbAzr3XqBzvD6VdFVUksVHaCItFsc8 4Pbg== X-Forwarded-Encrypted: i=1; AJvYcCXQMT5/CWJGDLTlh/UsAqGbyJrg7BlyYMO+/A2YHlYgvHMQWZbCll4smz2IwqKcWw0f3tG49udOFA==@kvack.org X-Gm-Message-State: AOJu0Yxm5q8wIFCcvl3k0qL3xXqAuCNUpPwUtR5dVj9DO2RzqQIUQQWR yTqbU4FuDPG3IEsAXnqNHakQko8KVrvYuNJd1bXBjbAclywi8A59B4KS02ZsuK0lUGdcaefu5rl ajgluPagwXbEZTMCESR+z5A9QqEwj5A== X-Google-Smtp-Source: AGHT+IHJiYaUJFgodiJ6bhdg9ou2IfF+ctYiqTy1xDgG7yuU8hdoc78hIbs7z3LNH5XU+extj33kRKCWTDyTJ5fMl04= X-Received: by 2002:a5d:6645:0:b0:37d:4e03:ff86 with SMTP id ffacd0b85a97d-37d55313314mr4715694f8f.49.1728773374667; Sat, 12 Oct 2024 15:49:34 -0700 (PDT) MIME-Version: 1.0 References: <20241011071657.3032690-1-snovitoll@gmail.com> In-Reply-To: From: Andrey Konovalov Date: Sun, 13 Oct 2024 00:49:23 +0200 Message-ID: Subject: Re: [PATCH] kasan: migrate copy_user_test to kunit To: Sabyrzhan Tasbolatov Cc: akpm@linux-foundation.org, ryabinin.a.a@gmail.com, glider@google.com, dvyukov@google.com, vincenzo.frascino@arm.com, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: 124CD40007 X-Stat-Signature: qozfdskt36cxcsussyz916ne7g971gxn X-HE-Tag: 1728773369-134827 X-HE-Meta: U2FsdGVkX198bk06qUfqBNNw38pl6r7SLahGfp1239SubtpHmMBPdRykRKs/Dpn398/llAADcxXuh3no7feJ1CYl0mDp+3oX2IL4FLrcomRmGXbb4KY0Rjvh3VfikOutjBiqgrnGfkQ1vq3FIzo/cf8D0uO9Klmm2ubnn4/fGG+UcfS26766zrcJnaiHEpfHOxr//FDbK6K0GYOBfRQ4YtwGpzU+/zK+tVBGaZzEL4OCx4LXYQ0bb8l117uMoagXYUS7sgQ4hvqya6ShPSBIZ6WrIzrPpPjC/W5k8pPlcwy69zBB1ZBxoIvD6wuTgnGx8NVqLxpoVjaUwfavl42oFezl6m9/95G+B72JKRZCArZvv94N3eLqf0Ty6JnWzlIWa1+qnvUtW20waCzs2KMtBChhlMAZoaADFRHBGFT0Pof2eyJxI6BUvixByWbxM7WLggiMpQhhULiczDENrnmO04Q0IkNd6zH+/D7R9PS9Gft6xLJzl7WohPlsbqkzQBR5zrOFK+uFy52Q8C7Tf3x6Z5nxSb8Dzp13/4FMgjs8v7JzXlo8XM3VNGHjAMMO2MAEzLSzNqRaCFFAIvaGFdFzpiMM2BmuGpU5Iw2SGsZBDxDXUR0cRPD4Vz6FRghMJtbQNhIdLqucHxuIZnGBpfMkBlNCUeveaHQf7p1u+psJHM5j1gtyKrfr1A/l9z70t+WD8jG0exkQ0S8S0oSz01IRRS6kpOk7fWbN+z/3tPAQSVmlJWlbe+GoEvpi5LdeHrcOTInWTQCZw49BO+J+Fm66M0+doA7VRZla1z1bJFgCkTCzlfwmzeV3pxZF2toRtm90xwurSmSXAg2Bmx8k1kjGuo6fOXkX8uMl6nB/vI6uYhRECWRB8Ag4RFLnlvXLw1CQ+3wKiW3NTT+RcqRT/Sg9eEjMuQGZ8d3gb5NVdsOpY2GZR+6wcn0eqLUIq+pk/1ApzDzqISFc7ft0V0MyMub VjT+IPxk 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Oct 11, 2024 at 11:12=E2=80=AFAM Sabyrzhan Tasbolatov wrote: > > This has been tested on: > - x86_64 with CONFIG_KASAN_GENERIC > - arm64 with CONFIG_KASAN_SW_TAGS > - arm64 with CONFIG_KASAN_HW_TAGS > > - arm64 SW_TAGS has 1 failing test which is in the mainline, > will try to address it in different patch, not related to changes in this= PR: > [ 9.480716] # vmalloc_percpu: EXPECTATION FAILED at > mm/kasan/kasan_test_c.c:1830 > [ 9.480716] Expected (u8)(__u8)((u64)(c_ptr) >> 56) < (u8)0xFF, bu= t > [ 9.480716] (u8)(__u8)((u64)(c_ptr) >> 56) =3D=3D 255 (0xff) > [ 9.480716] (u8)0xFF =3D=3D 255 (0xff) > [ 9.481936] # vmalloc_percpu: EXPECTATION FAILED at > mm/kasan/kasan_test_c.c:1830 > [ 9.481936] Expected (u8)(__u8)((u64)(c_ptr) >> 56) < (u8)0xFF, bu= t > [ 9.481936] (u8)(__u8)((u64)(c_ptr) >> 56) =3D=3D 255 (0xff) > [ 9.481936] (u8)0xFF =3D=3D 255 (0xff) Could you share the kernel config that you use to get this failure? This test works for me with my config... > Here is my full console log of arm64-sw.log: > https://gist.githubusercontent.com/novitoll/7ab93edca1f7d71925735075e84fc= 2ec/raw/6ef05758bcc396cd2f5796a5bcb5e41a091224cf/arm64-sw.log > > - arm64 HW_TAGS has 1 failing test related to new changes > and AFAIU, it's known issue related to HW_TAGS: > > [ 11.167324] # copy_user_test_oob: EXPECTATION FAILED at > mm/kasan/kasan_test_c.c:1992 > [ 11.167324] KASAN failure expected in "unused =3D > strncpy_from_user(kmem, usermem, size + 1)", but none occurred > > Here is the console log of arm64-hw.log: > https://gist.github.com/novitoll/7ab93edca1f7d71925735075e84fc2ec#file-ar= m64-hw-log-L11208 I don't remember seeing this issue before, did you manage to figure out why this happens? Thank you for working on this!