From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754503Ab2LRHSW (ORCPT ); Tue, 18 Dec 2012 02:18:22 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:22840 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754339Ab2LRHQh (ORCPT ); Tue, 18 Dec 2012 02:16:37 -0500 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Cc: "Eric W. Biederman" , Andrew Morton , linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH v7 25/27] x86, kdump: remove crashkernel range find limit for 64bit Date: Mon, 17 Dec 2012 23:15:57 -0800 Message-Id: <1355814959-10573-26-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1355814959-10573-1-git-send-email-yinghai@kernel.org> References: <1355814959-10573-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Now kexeced kernel/ramdisk could be above 4g, so remove 896 limit for 64bit. Signed-off-by: Yinghai Lu --- arch/x86/kernel/setup.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 15ce495..2631008 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -515,13 +515,11 @@ static void __init memblock_x86_reserve_range_setup_data(void) /* * Keep the crash kernel below this limit. On 32 bits earlier kernels * would limit the kernel to the low 512 MiB due to mapping restrictions. - * On 64 bits, kexec-tools currently limits us to 896 MiB; increase this - * limit once kexec-tools are fixed. */ #ifdef CONFIG_X86_32 # define CRASH_KERNEL_ADDR_MAX (512 << 20) #else -# define CRASH_KERNEL_ADDR_MAX (896 << 20) +# define CRASH_KERNEL_ADDR_MAX MAXMEM #endif static void __init reserve_crashkernel(void) -- 1.7.10.4