From patchwork Fri Apr 14 13:24:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Ellerman X-Patchwork-Id: 1769026 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=hGGuyp/I; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Pycxs1kPPz1yXv for ; Fri, 14 Apr 2023 23:39:45 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Pycxs0dBxz3g2k for ; Fri, 14 Apr 2023 23:39:45 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=hGGuyp/I; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) (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 lists.ozlabs.org (Postfix) with ESMTPS id 4Pyccv1bSRz3fTL for ; Fri, 14 Apr 2023 23:25:03 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=hGGuyp/I; dkim-atps=neutral Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Pyccv0jRQz4xN1; Fri, 14 Apr 2023 23:25:03 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1681478703; bh=YGOYFRl3rrbA/EPs+QenrfhI7Gj23R5ghzpu7PW1ips=; h=From:To:Subject:Date:In-Reply-To:References:From; b=hGGuyp/ILAg78qRSKftnBGjsiSQs//+9wneSmtNPwkjHuOlNiMn1ELOGVSRjQV2jZ f8ObYYwf2itNCKTkxnbsC4yKM3I/mEpBaHlbXJrbi5BRc8VjUQsPJ1HKE5weXK8tY+ hg8UFX4oK3gUEk9w6nrVFp0XZRopJEtcWqbQbXLSeDMEz/ynUzAEBrDrXqvi1Fzxqx YjbbWK4D0ZFwcptg2bn3Kk9JrrNozQsJeY8UAp8OfqiaOpFCJapfYqMuUOxo/xokNK DsOSwZUxIWYWGzWZ9Apkgnz5f50LljOpzJfNs+QxHLlpjVos3AJwsvjMoAzeTFO7B5 kOvb9EcpYbWVA== From: Michael Ellerman To: Subject: [PATCH 20/32] powerpc/configs/64s: Enable DEBUG_VM & other options Date: Fri, 14 Apr 2023 23:24:03 +1000 Message-Id: <20230414132415.821564-20-mpe@ellerman.id.au> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230414132415.821564-1-mpe@ellerman.id.au> References: <20230414132415.821564-1-mpe@ellerman.id.au> MIME-Version: 1.0 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: , Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Fedora enables DEBUG_VM, which has led to occasions where a VM_BUG_ON() is not caught by upstream testing, but rather is first found in Fedora, which is not how it's meant to be. PAGE_OWNER & PAGE_POISONING both need to be enabled on the kernel command line, so should not add much overhead in normal operation. Signed-off-by: Michael Ellerman --- arch/powerpc/configs/ppc64_defconfig | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index c8b49e33fd81..3154f307bba6 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -397,14 +397,20 @@ CONFIG_PRINTK_TIME=y CONFIG_PRINTK_CALLER=y CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y +CONFIG_PAGE_OWNER=y +CONFIG_PAGE_POISONING=y CONFIG_DEBUG_RODATA_TEST=y +CONFIG_DEBUG_WX=y CONFIG_DEBUG_STACK_USAGE=y +CONFIG_DEBUG_VM=y +# CONFIG_DEBUG_VM_PGTABLE is not set CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_SOFTLOCKUP_DETECTOR=y CONFIG_HARDLOCKUP_DETECTOR=y CONFIG_DEBUG_MUTEXES=y CONFIG_FUNCTION_TRACER=y CONFIG_LOCK_TORTURE_TEST=m +CONFIG_BUG_ON_DATA_CORRUPTION=y CONFIG_STACK_TRACER=y CONFIG_SCHED_TRACER=y CONFIG_FTRACE_SYSCALLS=y