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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 D3627C7618F for ; Sat, 20 Jul 2019 02:33:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A8F3421872 for ; Sat, 20 Jul 2019 02:33:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="op9Hckzg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A8F3421872 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mentor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=N9tNLLNnp6gdnPAKMeIsWCCANltGS9QYydEbM3xs3uU=; b=op9HckzgVFINiq F24yPdxCaG8nL/kGZeYiCURzouJTB1iApPdOCuNuVv6XrbP3AZ9WFwcEYyRWp31+97IVe0V8sXavB q42mRAmynkG3IRuexnNpo2aTIq1F+XtcjvuFERDhHbdH0m+3hBqdZ8/hRjDwpkNxTVABs5gflPc+y M2bofIHM0kzAoV1r5do4BNPc6KEo9ULC9MIKJlSh+NLTT0vILawRtsFMfT8Sc30FOTQ0QQ8zEXihq BAYgVabC/WhGAQ/436v83MOSuUWtYaNRsKjznGHvyOJWhzXGA8Pf7ATHDhrpEAV1/9piF5EEA9NGC Dqo5vtyntsD7xGP3zq6g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hofBq-0003CV-12; Sat, 20 Jul 2019 02:33:38 +0000 Received: from relay1.mentorg.com ([192.94.38.131]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hofBl-0003Bd-Ed for linux-arm-kernel@lists.infradead.org; Sat, 20 Jul 2019 02:33:35 +0000 Received: from svr-orw-mbx-01.mgc.mentorg.com ([147.34.90.201]) by relay1.mentorg.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-SHA384:256) id 1hofBR-0001QZ-Ku from George_Davis@mentor.com ; Fri, 19 Jul 2019 19:33:13 -0700 Received: from localhost (147.34.91.1) by svr-orw-mbx-01.mgc.mentorg.com (147.34.90.201) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Fri, 19 Jul 2019 19:33:11 -0700 From: "George G. Davis" To: Russell King , "Eric W. Biederman" , Thomas Gleixner , Florian Fainelli , Allison Randal , "George G. Davis" , Souptick Joarder , "moderated list:ARM PORT" , open list Subject: [PATCH] ARM: Fix null die() string for unhandled data and prefetch abort cases Date: Fri, 19 Jul 2019 22:32:55 -0400 Message-ID: <1563589976-19004-1-git-send-email-george_davis@mentor.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-ClientProxiedBy: svr-orw-mbx-04.mgc.mentorg.com (147.34.90.204) To svr-orw-mbx-01.mgc.mentorg.com (147.34.90.201) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190719_193333_707884_29C52BF9 X-CRM114-Status: GOOD ( 11.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 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+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org When an unhandled data or prefetch abort occurs, the die() string is empty resulting in backtrace messages similar to the following: Internal error: : 1 [#1] PREEMPT SMP ARM Replace the null string with the name of the abort handler in order to provide more meaningful hints as to the cause of the fault. Signed-off-by: George G. Davis --- arch/arm/mm/fault.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 0048eadd0681..dddea0a21220 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -557,7 +557,7 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs) inf->name, fsr, addr); show_pte(current->mm, addr); - arm_notify_die("", regs, inf->sig, inf->code, (void __user *)addr, + arm_notify_die(inf->name, regs, inf->sig, inf->code, (void __user *)addr, fsr, 0); } @@ -585,7 +585,7 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs) pr_alert("Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n", inf->name, ifsr, addr); - arm_notify_die("", regs, inf->sig, inf->code, (void __user *)addr, + arm_notify_die(inf->name, regs, inf->sig, inf->code, (void __user *)addr, ifsr, 0); } -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel