From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S942081AbcJEW5L (ORCPT ); Wed, 5 Oct 2016 18:57:11 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:44181 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933589AbcJEW5E (ORCPT ); Wed, 5 Oct 2016 18:57:04 -0400 Subject: Re: [PATCH v3 1/2] config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc To: David Miller References: <1475004808-91920-2-git-send-email-babu.moger@oracle.com> <20160928083926.GQ5016@twins.programming.kicks-ass.net> <20160930.011915.39029193323355575.davem@davemloft.net> Cc: peterz@infradead.org, mingo@redhat.com, akpm@linux-foundation.org, keescook@chromium.org, dan.j.williams@intel.com, aryabinin@virtuozzo.com, tj@kernel.org, sam@ravnborg.org, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org From: Babu Moger Organization: Oracle Corporation Message-ID: <95f51c11-8b72-b7d3-03c4-942d42128a7a@oracle.com> Date: Wed, 5 Oct 2016 17:56:16 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <20160930.011915.39029193323355575.davem@davemloft.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dave, Gentle reminder to review this patch. Thanks On 9/30/2016 12:19 AM, David Miller wrote: > From: Babu Moger > Date: Thu, 29 Sep 2016 08:53:24 -0500 > >> On 9/28/2016 3:39 AM, Peter Zijlstra wrote: >>> On Tue, Sep 27, 2016 at 12:33:27PM -0700, Babu Moger wrote: >>>> This new config parameter limits the space used for "Lock debugging: >>>> prove locking correctness" by about 4MB. The current sparc systems >>>> have >>>> the limitation of 32MB size for kernel size including .text, .data and >>>> .bss sections. With PROVE_LOCKING feature, the kernel size could grow >>>> beyond this limit and causing system boot-up issues. With this option, >>>> kernel limits the size of the entries of lock_chains, stack_trace >>>> etc., >>>> so that kernel fits in required size limit. This is not visible to >>>> user >>>> and only used for sparc. >>>> >>>> Signed-off-by: Babu Moger >>> You forgot to Cc Dave, and since you're touching sparc I need an Ack >>> from him before I can queue this. >> Dave, Can you please take a look at the patch. Please ack it if it >> looks good. > I am travelling and will look at it when I get a chance.