From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754391AbYIZSHb (ORCPT ); Fri, 26 Sep 2008 14:07:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753389AbYIZSGJ (ORCPT ); Fri, 26 Sep 2008 14:06:09 -0400 Received: from mail.windriver.com ([147.11.1.11]:37213 "EHLO mail.wrs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753319AbYIZSGI (ORCPT ); Fri, 26 Sep 2008 14:06:08 -0400 From: Jason Wessel To: torvalds@linux-foundation.org Cc: linux-kernel@vger.kernel.org, kgdb-bugreport@lists.sourceforge.net Subject: [PATCH 1/5] kgdb: could not write to the last of valid memory with kgdb Date: Fri, 26 Sep 2008 13:05:16 -0500 Message-Id: <1222452320-16281-2-git-send-email-jason.wessel@windriver.com> X-Mailer: git-send-email 1.6.0.90.g436ed.dirty In-Reply-To: <1222452320-16281-1-git-send-email-jason.wessel@windriver.com> References: <1222452320-16281-1-git-send-email-jason.wessel@windriver.com> X-OriginalArrivalTime: 26 Sep 2008 18:05:35.0456 (UTC) FILETIME=[79575600:01C92002] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Atsuo Igarashi On the ARM architecture, kgdb will crash the kernel if the last byte of valid memory is written due to a flush_icache_range flushing beyond the memory boundary. Signed-off-by: Atsuo Igarashi Signed-off-by: Jason Wessel --- kernel/kgdb.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/kgdb.c b/kernel/kgdb.c index eaa21fc..949806a 100644 --- a/kernel/kgdb.c +++ b/kernel/kgdb.c @@ -488,7 +488,7 @@ static int write_mem_msg(int binary) if (err) return err; if (CACHE_FLUSH_IS_SAFE) - flush_icache_range(addr, addr + length + 1); + flush_icache_range(addr, addr + length); return 0; } -- 1.6.0.90.g436ed.dirty