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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0C51C04A6A for ; Thu, 3 Aug 2023 13:12:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236212AbjHCNMu (ORCPT ); Thu, 3 Aug 2023 09:12:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236185AbjHCNMW (ORCPT ); Thu, 3 Aug 2023 09:12:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8B50855A5; Thu, 3 Aug 2023 06:10:46 -0700 (PDT) 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 7F47661DA0; Thu, 3 Aug 2023 13:05:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 18F4DC433CD; Thu, 3 Aug 2023 13:04:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1691067899; bh=6/pNw5GZ9cPpeea4mXIRzm1pzOv64bfB+NNtTfBrcKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=brbnRUMCKIGIjATihkRYeculTwEkBoh4Uy1lHjHdzTGfDBYbdWDXZJoYKvaczYVX8 /Eo1+evbjs+6+BCJXcXzIJGMGA1yi+6/IjncGoISs0DokHY+g4Dko+37edQun4yjs6 9aEvQR2F2HtAoy1vLzK+PAQBEhhHtEqTHz1iecF04Yg4tH0GOJviRgFTHOXJLXBQSp 372+M0Q8A662BVTACmNTbXRP70pgzViuvFnCqD0nsy+rYdpdTTmT4DPbYYGAoL7i6P CGkDxwEHGeyU6LlrqrNzMLIrrARAO98YztJrmrLSMrHoND/nDLZfJ2o9TAxYYz4VzT YGGODhWCwm28Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Benjamin Gray , Christophe Leroy , Michael Ellerman , Sasha Levin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 5.4 2/2] powerpc/kasan: Disable KCOV in KASAN code Date: Thu, 3 Aug 2023 09:04:53 -0400 Message-Id: <20230803130453.642094-2-sashal@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230803130453.642094-1-sashal@kernel.org> References: <20230803130453.642094-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.4.251 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 6577897673dda..22f1a7c3f4362 100644 --- a/arch/powerpc/mm/kasan/Makefile +++ b/arch/powerpc/mm/kasan/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 KASAN_SANITIZE := n +KCOV_INSTRUMENT := n obj-$(CONFIG_PPC32) += kasan_init_32.o -- 2.40.1