Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754507Ab0CABm4 (ORCPT ); Sun, 28 Feb 2010 20:42:56 -0500 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:53392 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753357Ab0CABmy (ORCPT ); Sun, 28 Feb 2010 20:42:54 -0500 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: Pekka Enberg , Alan Cox Subject: Re: Memory management woes - order 1 allocation failures Cc: kosaki.motohiro@jp.fujitsu.com, Christoph Lameter , Frans Pop , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Mel Gorman In-Reply-To: <84144f021002260917q61f7c255rf994425f3a613819@mail.gmail.com> References: <84144f021002260917q61f7c255rf994425f3a613819@mail.gmail.com> Message-Id: <20100301103546.DD86.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Mon, 1 Mar 2010 10:42:50 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 657 Lines: 18 > AFAICT, even in the worst case, the latter call-site is well below 4K. > I have no idea of the tty one. afaik, tty_buffer_request_room() try to expand its buffer size for efficiency. but Its failure doesn't cause any user visible failure. probably we can mark it as NOWARN. In worst case, maximum tty buffer size is 64K, it can make allocation failure easily. Alan, Can you please tell us your mention? -- 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/