From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH v5 2/6] memblock: Introduce bottom-up allocation mode Date: Thu, 26 Sep 2013 11:50:15 -0400 Message-ID: <20130926155015.GB32391@mtj.dyndns.org> References: <5241D897.1090905@gmail.com> <5241D9A4.4080305@gmail.com> <20130926144516.GD3482@htj.dyndns.org> <524454BE.4030602@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <524454BE.4030602@gmail.com> Sender: linux-doc-owner@vger.kernel.org To: Zhang Yanfei Cc: "Rafael J . Wysocki" , lenb@kernel.org, Thomas Gleixner , mingo@elte.hu, "H. Peter Anvin" , Andrew Morton , Toshi Kani , Wanpeng Li , Thomas Renninger , Yinghai Lu , Jiang Liu , Wen Congyang , Lai Jiangshan , isimatu.yasuaki@jp.fujitsu.com, izumi.taku@jp.fujitsu.com, Mel Gorman , Minchan Kim , mina86@mina86.com, gong.chen@linux.intel.com, vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com, Rik van Riel , jweiner@redhat.com, prarit@redhat.com, "x86@kernel.org" , linux-doc@vger.kernel.org, "linux-kernel@vger.kernel.org" , Linux MM List-Id: linux-acpi@vger.kernel.org On Thu, Sep 26, 2013 at 11:37:34PM +0800, Zhang Yanfei wrote: > >> + WARN_ONCE(1, "memblock: Failed to allocate memory in bottom up " > >> + "direction. Now try top down direction.\n"); > >> + } > > > > You and I would know what was going on and what the consequence of the > > failure may be but the above warning message is kinda useless to a > > user / admin, right? It doesn't really say anything meaningful. > > > > Hmmmm.. May be something like this: > > WARN_ONCE(1, "Failed to allocated memory above the kernel in bottom-up," > "so try to allocate memory below the kernel."); How about something like "memblock: bottom-up allocation failed, memory hotunplug may be affected\n". Thanks. -- tejun