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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 E844DC04A94 for ; Thu, 3 Aug 2023 13:06:58 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=c+67cp5w; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RGpyn2xtNz3dBp for ; Thu, 3 Aug 2023 23:06:57 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=c+67cp5w; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=sashal@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RGpwJ18VPz3c9G for ; Thu, 3 Aug 2023 23:04:48 +1000 (AEST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7762561DAB; Thu, 3 Aug 2023 13:04:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31721C433CA; Thu, 3 Aug 2023 13:04:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1691067883; bh=fgdLDtvzoKvEDHXTifVWTZq8tUrzSmN4jtEK5Hxiclo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c+67cp5wLV9zSf9WO7AaGAle2tyyU3vouMHM4twVXd0/YFuxWEz70AonSIOj3NwKX MGcc2405xV5s1qPHDQNJ80jjT5WkCRz8e6bZgXrKJ8zvkWnUXywMPlcLWWDxyvo2R+ Q9o6SUQmGgYYT/7C7b6Tb8J2cIH44ESJKE7mAXMwh+CkU8pUa3XLinVG7w9qSvxmvZ 6O01uqlcsSXYTGZ+4y1E8MQy/MLmECrsit1QH+nUxTGmiaLp9vOduuL8ETx9giOJiy HphUmnCiRo2VchJ0MoEa24fPJZGrqoGRMtBlkSllaq2fTHPvnGY45V5hiVuhbwS008 YLNpIrKpagiVg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 2/3] powerpc/kasan: Disable KCOV in KASAN code Date: Thu, 3 Aug 2023 09:04:37 -0400 Message-Id: <20230803130438.641988-2-sashal@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230803130438.641988-1-sashal@kernel.org> References: <20230803130438.641988-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.123 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , linuxppc-dev@lists.ozlabs.org, Benjamin Gray Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Benjamin Gray [ Upstream commit ccb381e1af1ace292153c88eb1fffa5683d16a20 ] As per the generic KASAN code in mm/kasan, disable KCOV with KCOV_INSTRUMENT := n in the makefile. This fixes a ppc64 boot hang when KCOV and KASAN are enabled. kasan_early_init() gets called before a PACA is initialised, but the KCOV hook expects a valid PACA. Suggested-by: Christophe Leroy Signed-off-by: Benjamin Gray Signed-off-by: Michael Ellerman Link: https://msgid.link/20230710044143.146840-1-bgray@linux.ibm.com Signed-off-by: Sasha Levin --- arch/powerpc/mm/kasan/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/mm/kasan/Makefile b/arch/powerpc/mm/kasan/Makefile index bb1a5408b86b2..8636b17c6a20f 100644 --- a/arch/powerpc/mm/kasan/Makefile +++ b/arch/powerpc/mm/kasan/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 KASAN_SANITIZE := n +KCOV_INSTRUMENT := n obj-$(CONFIG_PPC32) += kasan_init_32.o obj-$(CONFIG_PPC_8xx) += 8xx.o -- 2.40.1