From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 13F9133DC for ; Fri, 25 Nov 2022 13:58:16 +0000 (UTC) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 0B0A65C00EE; Fri, 25 Nov 2022 08:58:16 -0500 (EST) Received: from imap51 ([10.202.2.101]) by compute3.internal (MEProxy); Fri, 25 Nov 2022 08:58:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-type:date:date:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to; s=fm3; t=1669384696; x=1669471096; bh=HZFW0Q6ily rDold9b9ca9gHjKB3WJYu7yBNi/OLlm4s=; b=KGJZiKitRl3OE1rk8bBGc/1ZQ3 Ma4nnuK/qC4S+Z7c21rN3BBkmmsOTu1iSi306GclQlD1aLoZAI7bxy/Zyf2WWL/c T9YvWuOmeJrBE27O8hLQcZnBIRtt9zF029V8GJQjvRIz05T4SrutfObIB2+ecPmU aBmXNBORU+7plARbIQUQSQ5mPoXPc7wapieq5aUFQwuQ3c9l+7X8Di1Tkd2WkPey JXi606GY2/woLA7wakeS7nNMMWQZj5pAhDMaidzPb4bOqwDKNFBbYuTD93yeC7H7 nYJlejZXEmApA5wxfE4OEZtGDMbpTAe+VgMh0H2DdXH/wJsvYNw8sBVsSGiw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:feedback-id :feedback-id:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1669384696; x=1669471096; bh=HZFW0Q6ilyrDold9b9ca9gHjKB3W JYu7yBNi/OLlm4s=; b=WCy1IAOAaD2q1pazTB73ladozixKckhwGuvVzqadnlJP 8J01lU3w9VknC9kPGp3I7gOJrs8GiLfpRxTIkKd6S5jJAjCWwHIQhYJNTTJSZTEz i3nXo0D2H947sSrNaGRGnq5Kp8vW1eQ1zBUysveDTiTrDXCVrwt/ul8GqKybWKtD 7V/BtIkBcO16XL/6LR4PoTIzudeUJeTt85YvzVW28dvqxomIk2wSGU5DV1WHXU3H ZWgvNxf3+yDutaJgJ/WYFSUUhTJYy/wuxE/IPkXCtHQMWBNM1T3RQXY8C1aaSYps 39J8LX+2CdwIwUPL7WGG4cv2wSM6DmRkvi8McvKdtg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvgedrieehgdehlecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefofgggkfgjfhffhffvvefutgesthdtredtreertdenucfhrhhomhepfdetrhhn ugcuuegvrhhgmhgrnhhnfdcuoegrrhhnugesrghrnhgusgdruggvqeenucggtffrrghtth gvrhhnpeffheeugeetiefhgeethfejgfdtuefggeejleehjeeutefhfeeggefhkedtkeet ffenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpegrrh hnugesrghrnhgusgdruggv X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 90CCFB60086; Fri, 25 Nov 2022 08:58:15 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-1115-g8b801eadce-fm-20221102.001-g8b801ead Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Message-Id: <347df991-4755-4f11-b530-4d0e3994a9db@app.fastmail.com> In-Reply-To: References: <20221125120750.3537134-1-lee@kernel.org> <20221125120750.3537134-3-lee@kernel.org> Date: Fri, 25 Nov 2022 14:57:55 +0100 From: "Arnd Bergmann" To: "Lee Jones" , "Andrew Morton" , "Nathan Chancellor" , "Maarten Lankhorst" , mripard@kernel.org, "Thomas Zimmermann" , "Dave Airlie" , "Daniel Vetter" , "Nick Desaulniers" , "Tom Rix" , "Harry Wentland" , "Leo Li" , "Rodrigo Siqueira" , "Alex Deucher" , =?UTF-8?Q?Christian_K=C3=B6nig?= , Xinhui.Pan@amd.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH v2 2/2] Kconfig.debug: Provide a little extra FRAME_WARN leeway when KASAN is enabled Content-Type: text/plain On Fri, Nov 25, 2022, at 14:40, Lee Jones wrote: > On Fri, 25 Nov 2022, Lee Jones wrote: > >> When enabled, KASAN enlarges function's stack-frames. Pushing quite a >> few over the current threshold. This can mainly be seen on 32-bit >> architectures where the present limit (when !GCC) is a lowly >> 1024-Bytes. >> >> Signed-off-by: Lee Jones >> --- >> lib/Kconfig.debug | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug >> index c3c0b077ade33..82d475168db95 100644 >> --- a/lib/Kconfig.debug >> +++ b/lib/Kconfig.debug >> @@ -399,6 +399,7 @@ config FRAME_WARN >> default 2048 if GCC_PLUGIN_LATENT_ENTROPY >> default 2048 if PARISC >> default 1536 if (!64BIT && XTENSA) >> + default 1280 if KASAN && !64BIT >> default 1024 if !64BIT >> default 2048 if 64BIT >> help > > Note this also fixes 61 warnings when > > (GCC && !GCC_PLUGIN_LATENT_ENTROPY) > > ... which as Arnd says should not be enabled by default. We'll > address that issue once this set has been applied. Thanks a lot for checking this! Reviewed-by: Arnd Bergmann 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 80E0DC43219 for ; Fri, 25 Nov 2022 13:58:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1E97C10E7B9; Fri, 25 Nov 2022 13:58:24 +0000 (UTC) Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8028510E7B3; Fri, 25 Nov 2022 13:58:18 +0000 (UTC) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 0B0A65C00EE; Fri, 25 Nov 2022 08:58:16 -0500 (EST) Received: from imap51 ([10.202.2.101]) by compute3.internal (MEProxy); Fri, 25 Nov 2022 08:58:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-type:date:date:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to; s=fm3; t=1669384696; x=1669471096; bh=HZFW0Q6ily rDold9b9ca9gHjKB3WJYu7yBNi/OLlm4s=; b=KGJZiKitRl3OE1rk8bBGc/1ZQ3 Ma4nnuK/qC4S+Z7c21rN3BBkmmsOTu1iSi306GclQlD1aLoZAI7bxy/Zyf2WWL/c T9YvWuOmeJrBE27O8hLQcZnBIRtt9zF029V8GJQjvRIz05T4SrutfObIB2+ecPmU aBmXNBORU+7plARbIQUQSQ5mPoXPc7wapieq5aUFQwuQ3c9l+7X8Di1Tkd2WkPey JXi606GY2/woLA7wakeS7nNMMWQZj5pAhDMaidzPb4bOqwDKNFBbYuTD93yeC7H7 nYJlejZXEmApA5wxfE4OEZtGDMbpTAe+VgMh0H2DdXH/wJsvYNw8sBVsSGiw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:feedback-id :feedback-id:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1669384696; x=1669471096; bh=HZFW0Q6ilyrDold9b9ca9gHjKB3W JYu7yBNi/OLlm4s=; b=WCy1IAOAaD2q1pazTB73ladozixKckhwGuvVzqadnlJP 8J01lU3w9VknC9kPGp3I7gOJrs8GiLfpRxTIkKd6S5jJAjCWwHIQhYJNTTJSZTEz i3nXo0D2H947sSrNaGRGnq5Kp8vW1eQ1zBUysveDTiTrDXCVrwt/ul8GqKybWKtD 7V/BtIkBcO16XL/6LR4PoTIzudeUJeTt85YvzVW28dvqxomIk2wSGU5DV1WHXU3H ZWgvNxf3+yDutaJgJ/WYFSUUhTJYy/wuxE/IPkXCtHQMWBNM1T3RQXY8C1aaSYps 39J8LX+2CdwIwUPL7WGG4cv2wSM6DmRkvi8McvKdtg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvgedrieehgdehlecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefofgggkfgjfhffhffvvefutgesthdtredtreertdenucfhrhhomhepfdetrhhn ugcuuegvrhhgmhgrnhhnfdcuoegrrhhnugesrghrnhgusgdruggvqeenucggtffrrghtth gvrhhnpeffheeugeetiefhgeethfejgfdtuefggeejleehjeeutefhfeeggefhkedtkeet ffenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpegrrh hnugesrghrnhgusgdruggv X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 90CCFB60086; Fri, 25 Nov 2022 08:58:15 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-1115-g8b801eadce-fm-20221102.001-g8b801ead Mime-Version: 1.0 Message-Id: <347df991-4755-4f11-b530-4d0e3994a9db@app.fastmail.com> In-Reply-To: References: <20221125120750.3537134-1-lee@kernel.org> <20221125120750.3537134-3-lee@kernel.org> Date: Fri, 25 Nov 2022 14:57:55 +0100 From: "Arnd Bergmann" To: "Lee Jones" , "Andrew Morton" , "Nathan Chancellor" , "Maarten Lankhorst" , mripard@kernel.org, "Thomas Zimmermann" , "Dave Airlie" , "Daniel Vetter" , "Nick Desaulniers" , "Tom Rix" , "Harry Wentland" , "Leo Li" , "Rodrigo Siqueira" , "Alex Deucher" , =?UTF-8?Q?Christian_K=C3=B6nig?= , Xinhui.Pan@amd.com Subject: Re: [PATCH v2 2/2] Kconfig.debug: Provide a little extra FRAME_WARN leeway when KASAN is enabled Content-Type: text/plain X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Fri, Nov 25, 2022, at 14:40, Lee Jones wrote: > On Fri, 25 Nov 2022, Lee Jones wrote: > >> When enabled, KASAN enlarges function's stack-frames. Pushing quite a >> few over the current threshold. This can mainly be seen on 32-bit >> architectures where the present limit (when !GCC) is a lowly >> 1024-Bytes. >> >> Signed-off-by: Lee Jones >> --- >> lib/Kconfig.debug | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug >> index c3c0b077ade33..82d475168db95 100644 >> --- a/lib/Kconfig.debug >> +++ b/lib/Kconfig.debug >> @@ -399,6 +399,7 @@ config FRAME_WARN >> default 2048 if GCC_PLUGIN_LATENT_ENTROPY >> default 2048 if PARISC >> default 1536 if (!64BIT && XTENSA) >> + default 1280 if KASAN && !64BIT >> default 1024 if !64BIT >> default 2048 if 64BIT >> help > > Note this also fixes 61 warnings when > > (GCC && !GCC_PLUGIN_LATENT_ENTROPY) > > ... which as Arnd says should not be enabled by default. We'll > address that issue once this set has been applied. Thanks a lot for checking this! Reviewed-by: Arnd Bergmann 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C7AF2C4332F for ; Fri, 25 Nov 2022 13:59:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:Cc:To:From:Date:References: In-Reply-To:Message-Id:Mime-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dyKSAPITesSrjAQDLdYBT9fL9/DuqbYhL7wt2kPxLXo=; b=gQmKDWW339DDJ1 0Ni3k4m0nnLuVeEkLnRZf3hMkPgNtth8wP9P4MkR7rSrHfNWQtRyoSJspNHrcWsmdX80H/UDMC6tM C1JwbDKeQ0MnShljBELvkoMi0lg/pZuT+mbnZrxarKzLOkJdPKTn8F+p5/f8BKRmZAbOvqcmkkzbZ MxWFme5KdBk6ptrXefD4bQDj4v0NPcXqURMdWWoBJGrRBJ4Lgu/j5/fqo1YDB8dmXOqvdSGt9G0GQ cl4Ztl3wpjdOCVguD8AmqiQx/e4MH7MDlxZziCAdsgl++hFc7xymiK1ebqmxwr7YorlrQVW/vbhpD a3yqgn6Sw63hDj9hdIxg==; 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Fri, 25 Nov 2022 08:58:15 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-1115-g8b801eadce-fm-20221102.001-g8b801ead Mime-Version: 1.0 Message-Id: <347df991-4755-4f11-b530-4d0e3994a9db@app.fastmail.com> In-Reply-To: References: <20221125120750.3537134-1-lee@kernel.org> <20221125120750.3537134-3-lee@kernel.org> Date: Fri, 25 Nov 2022 14:57:55 +0100 From: "Arnd Bergmann" To: "Lee Jones" , "Andrew Morton" , "Nathan Chancellor" , "Maarten Lankhorst" , mripard@kernel.org, "Thomas Zimmermann" , "Dave Airlie" , "Daniel Vetter" , "Nick Desaulniers" , "Tom Rix" , "Harry Wentland" , "Leo Li" , "Rodrigo Siqueira" , "Alex Deucher" , =?UTF-8?Q?Christian_K=C3=B6nig?= , Xinhui.Pan@amd.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH v2 2/2] Kconfig.debug: Provide a little extra FRAME_WARN leeway when KASAN is enabled X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221125_055816_825995_F13CB917 X-CRM114-Status: GOOD ( 14.42 ) 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 Fri, Nov 25, 2022, at 14:40, Lee Jones wrote: > On Fri, 25 Nov 2022, Lee Jones wrote: > >> When enabled, KASAN enlarges function's stack-frames. Pushing quite a >> few over the current threshold. This can mainly be seen on 32-bit >> architectures where the present limit (when !GCC) is a lowly >> 1024-Bytes. >> >> Signed-off-by: Lee Jones >> --- >> lib/Kconfig.debug | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug >> index c3c0b077ade33..82d475168db95 100644 >> --- a/lib/Kconfig.debug >> +++ b/lib/Kconfig.debug >> @@ -399,6 +399,7 @@ config FRAME_WARN >> default 2048 if GCC_PLUGIN_LATENT_ENTROPY >> default 2048 if PARISC >> default 1536 if (!64BIT && XTENSA) >> + default 1280 if KASAN && !64BIT >> default 1024 if !64BIT >> default 2048 if 64BIT >> help > > Note this also fixes 61 warnings when > > (GCC && !GCC_PLUGIN_LATENT_ENTROPY) > > ... which as Arnd says should not be enabled by default. We'll > address that issue once this set has been applied. Thanks a lot for checking this! Reviewed-by: Arnd Bergmann _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel