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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 36BE6C433E0 for ; Mon, 8 Mar 2021 14:58:39 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 98D3E6521D for ; Mon, 8 Mar 2021 14:58:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 98D3E6521D Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.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=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5qUaZhWLziFvTpjrIWI9+Qp9B+QvPIzNltQC25VGApg=; b=ZLXMDcRN81MVZpA7Y30jS4iDC JBDFVaVy7CixjvjEgJsZAojeNv8eTNA+pZPGBi6FiY3L1jaGbGLFLHYOhMlYFKipOrT1v3biJEr8D miJ8i8yRXT4+r+jLH0cj7b0bFEDJIvutVDFLXhazP9zVeYNWvNOErdOcdCRzpz4X07EAW2jrovMmG opdzVVV5wvPi+pwY65BnPd8XzOFwAP0Wik9RnFMdJt1TCkxwbsBEVD1zriOT5t4s6KOywSanAQhhK RWRGthJ6xGtYApk5V9Gm0Yg36+CvzTWJHQI78aVz8VF6q/Ifab09yzFUbgI4KK5nzqj+3SIRJet2u b3h5101aQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lJHJg-000NRt-GQ; Mon, 08 Mar 2021 14:57:04 +0000 Received: from mail-pj1-x102d.google.com ([2607:f8b0:4864:20::102d]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lJHJY-000NPu-79 for linux-arm-kernel@lists.infradead.org; Mon, 08 Mar 2021 14:56:58 +0000 Received: by mail-pj1-x102d.google.com with SMTP id fu20so3164830pjb.2 for ; Mon, 08 Mar 2021 06:56:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=GCYcXvsikTXrcZukrMxQd7rhmQO713u1DW4C7CyWQ8c=; b=GIXfP9RmTmH/XkMMq4jIUR1Fs2X1WZUrFk249d0Lxh4V8d52bD8nDlkjr5F0UWZzqY blrtsTONNu3Dpyi/UIoV3DUEUr/gK7pzInmzOQsdKfh9SVZmQYV+Jl20m/sKqqN/ZkQP yRlDWPeJhrTejRLnEHUofR2+r/Df6H/I7LMoJB4QocMhompR/SvDihAVfh68ufm/oZz6 Mz7vyNNOXSPdsGKS1rMIOlHpldRKMov35b/OKmu6FjbO3l5i1CKFRPfiD+xT+IhQaN6d bfJTwkSt+ZjfADGmnZK7bsx1VcUm66qtcVlZhRvhEBHeQelAuCd+xwEAie32mTLEUNVm m9yA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=GCYcXvsikTXrcZukrMxQd7rhmQO713u1DW4C7CyWQ8c=; b=AGMojx4PTvFN286X2jFRpIg6Vk8e20HuvAIqcnbnFWlj1etCOIlX5S2dt3x9E+/rQK b2eoiLNRo98xg/Ss7d1qiD+AyWwSGs1+M6LTIkpsrBMt2PiBlOjEe+efB519o/n8T5M/ KnIVv6zKrC+hv09w4bSaC7Zg5XkfJwHCRdiMK9XuyTgVPxwCqZ1zLlHh2P3ICY9JoChD nSDoB2wDGeEjOBkPVJB2hG5n6c6j7ydrg7WKz4xVxNqrS4QxSDyH4WRJD6xgtmWcf0o9 NplT+YejBEkkevSlfgU1+SgpOXPHBpaKLnxRa+4dRs6tERabegIrZzFrptO08VjuA1+i sNsA== X-Gm-Message-State: AOAM53308HqRQrbwKM6itbU/FTeegioifDWxggVdyO6NJaYDT/Gl0ynX rvmuHgsPCgtgRgPo7+5gxpJTyKHjB7I866p8cTUiiF+6oJA= X-Google-Smtp-Source: ABdhPJzpk10U8H/bSjUu+IJTxSW63RdISUq8bEiaAWJjfGzt3gdxBqwzzOcgRxiVxQzHkncfzTPCHpz8ECfZTTDgG9U= X-Received: by 2002:a17:902:7898:b029:e4:182f:e31d with SMTP id q24-20020a1709027898b02900e4182fe31dmr20762682pll.13.1615215414302; Mon, 08 Mar 2021 06:56:54 -0800 (PST) MIME-Version: 1.0 References: <20210305171108.GD23855@arm.com> <20210305175124.GG23855@arm.com> <20210305175243.GH23855@arm.com> <20210306120121.GA2932@arm.com> In-Reply-To: <20210306120121.GA2932@arm.com> From: Andrey Konovalov Date: Mon, 8 Mar 2021 15:56:43 +0100 Message-ID: Subject: Re: arm64 KASAN_HW_TAGS panic on non-MTE hardware on 5.12-rc1 To: Catalin Marinas Cc: Linux ARM , Vincenzo Frascino , kasan-dev , Will Deacon X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210308_145656_426348_5ED75BCD X-CRM114-Status: GOOD ( 18.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Sat, Mar 6, 2021 at 1:01 PM Catalin Marinas wrote: > > On Fri, Mar 05, 2021 at 07:36:22PM +0100, Andrey Konovalov wrote: > > On Fri, Mar 5, 2021 at 6:52 PM Catalin Marinas wrote: > > > > > This is weird. kasan_unpoison_task_stack() is only defined when > > > > > CONFIG_KASAN_STACK is enabled, which shouldn't be enablable for > > > > > HW_TAGS. > > > > > > > > CONFIG_KASAN=y > > > > # CONFIG_KASAN_GENERIC is not set > > > > CONFIG_KASAN_HW_TAGS=y > > > > CONFIG_KASAN_STACK=1 > > > > > > From Kconfig: > > > > > > config KASAN_STACK > > > int > > > default 1 if KASAN_STACK_ENABLE || CC_IS_GCC > > > default 0 > > > > > > and I use gcc. > > > > Ah, that explains it. > > > > Could you try applying this patch and see if it fixes the issue? > > > > https://patchwork.kernel.org/project/linux-mm/patch/20210226012531.29231-1-walter-zh.wu@mediatek.com/ > > Walter's patches already in -next fix this issue. Great! I'll still send a patch as we need the fix in older kernels too. Thanks for the report! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel