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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 37204C12002 for ; Sat, 17 Jul 2021 02:40:52 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7B1FA613EB for ; Sat, 17 Jul 2021 02:40:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B1FA613EB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 91C328D00F4; Fri, 16 Jul 2021 22:40:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8A5D68D00EC; Fri, 16 Jul 2021 22:40:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 71EB28D00F4; Fri, 16 Jul 2021 22:40:51 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0217.hostedemail.com [216.40.44.217]) by kanga.kvack.org (Postfix) with ESMTP id 45D5F8D00EC for ; Fri, 16 Jul 2021 22:40:51 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 0F540181C4439 for ; Sat, 17 Jul 2021 02:40:50 +0000 (UTC) X-FDA: 78370527060.13.D2E6B8C Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf10.hostedemail.com (Postfix) with ESMTP id 2708960019B6 for ; Sat, 17 Jul 2021 02:40:49 +0000 (UTC) Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4GRXJQ6H1gzYcrx; Sat, 17 Jul 2021 10:35:02 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Sat, 17 Jul 2021 10:40:44 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Sat, 17 Jul 2021 10:40:43 +0800 Subject: Re: [PATCH -next 3/3] kasan: arm64: Fix pcpu_page_first_chunk crash with KASAN_VMALLOC To: Marco Elver CC: Dmitry Vyukov , Catalin Marinas , Will Deacon , Andrey Ryabinin , Andrey Konovalov , , , , , Daniel Axtens References: <20210705111453.164230-1-wangkefeng.wang@huawei.com> <20210705111453.164230-4-wangkefeng.wang@huawei.com> <089f5187-9a4d-72dc-1767-8130434bfb3a@huawei.com> <5f760f6c-dcbd-b28a-2116-a2fb233fc534@huawei.com> From: Kefeng Wang Message-ID: Date: Sat, 17 Jul 2021 10:40:42 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Authentication-Results: imf10.hostedemail.com; dkim=none; spf=pass (imf10.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com; dmarc=pass (policy=none) header.from=huawei.com X-Stat-Signature: ieboerzcfb8gsfox1btkbcrqq758ijde X-Rspamd-Queue-Id: 2708960019B6 X-Rspamd-Server: rspam01 X-HE-Tag: 1626489649-390770 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: On 2021/7/16 15:41, Marco Elver wrote: > On Fri, 16 Jul 2021 at 07:06, Kefeng Wang wrote: >> Hi Marco and Dmitry, any comments about the following replay, thanks. > Can you clarify the question? I've been waiting for v2. > > I think you said that this will remain arm64 specific and the existing > generic kasan_populate_early_shadow() doesn't work. Yes, I can't find a generic way to solve the issue, if there is no better way, I will send a new version(fix the build error and the wrong __weak comment) > > If there's nothing else that needs resolving, please go ahead and send > v2 (the __weak comment still needs resolving). Thanks. will do. > > Thanks, > -- Marco > . >