Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754668AbbHXPGn (ORCPT ); Mon, 24 Aug 2015 11:06:43 -0400 Received: from m12-13.163.com ([220.181.12.13]:36013 "EHLO m12-13.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753826AbbHXPGm (ORCPT ); Mon, 24 Aug 2015 11:06:42 -0400 From: Yaowei Bai To: corbet@lwn.net Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] Documentation: add 'crashkernel=auto' entry into kernel-parameters.txt Date: Mon, 24 Aug 2015 23:04:29 +0800 Message-Id: <1440428669-4414-1-git-send-email-bywxiaobai@163.com> X-Mailer: git-send-email 1.9.1 X-CM-TRANSID: DcCowAAXNEH2MttVEaEFAg--.15166S3 X-Coremail-Antispam: 1Uf129KBjvdXoWrur4kGw4DtF1DXw13XrWrZrb_yoWkCrbEgr s8Ja4vva4UAF1Iyr47JFs7XryS9an2kF95W3Z3J398Ja4DAFZxAF98Cas8Aws5XrZ3ur15 ursrtryvvFsFvjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU1pwZ3UUUUU== X-Originating-IP: [58.209.165.149] X-CM-SenderInfo: xe1z5x5dretxi6rwjhhfrp/1tbiLRlgT1SIJ4nX8wAAsN Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1385 Lines: 37 There is no 'crashkernel=auto' entry in kernel-parameters.txt, borrow it from kexec-kdump-howto.txt file in the kexec-tools-2.0.0 package. Signed-off-by: Yaowei Bai --- Documentation/kernel-parameters.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1d6f045..9e5913e 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -797,6 +797,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. It will be ignored when crashkernel=X,high is not used or memory reserved is below 4G. + crashkernel=auto + This specification allows the kernel to decide how much + memory to reserve for the purposes of kdump. It will make + this determination based on the amount of memory you have + in your system, and scale the allocation accordingly. + Note that if you have less than 4Gb of memory in your system, + this specification will opt to not allocate any memory for + the purposes of kdump. + cs89x0_dma= [HW,NET] Format: -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/