From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932519AbYEGHoF (ORCPT ); Wed, 7 May 2008 03:44:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753295AbYEGHnx (ORCPT ); Wed, 7 May 2008 03:43:53 -0400 Received: from smtp-out.google.com ([216.239.33.17]:35195 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756078AbYEGHnv (ORCPT ); Wed, 7 May 2008 03:43:51 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=received:message-id:date:from:to:subject:cc:in-reply-to: mime-version:content-type:content-transfer-encoding: content-disposition:references; b=LsAUuaMPuqb1Ol5TJmwk0fgy7yZWiM5R7wzVAIf7ab9sji/iGMOBmnG16JpQ7jENg QYebCUK75ftLjKFCv7xuQ== Message-ID: <6599ad830805070043y4465a32h8e26c5e8890b1100@mail.gmail.com> Date: Wed, 7 May 2008 00:43:45 -0700 From: "Paul Menage" To: "KAMEZAWA Hiroyuki" Subject: Re: [PATCH] mm/cgroup.c add error check Cc: "KOSAKI Motohiro" , LKML , linux-mm , "Li Zefan" In-Reply-To: <20080507164526.884208f9.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080506195216.4A6D.KOSAKI.MOTOHIRO@jp.fujitsu.com> <6599ad830805062208if98157cwaca4bafa01b8d097@mail.gmail.com> <20080507164526.884208f9.kamezawa.hiroyu@jp.fujitsu.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 7, 2008 at 12:45 AM, KAMEZAWA Hiroyuki wrote: > Hmm, but It seems call_usermodehelper()'s fails in silent, no messages. > A notify which can be silently dropped is useless. True, but if we're so short of memory that we can't fork, userspace probably won't be able to do much about the notification even if it gets it. > Can we add 'printk("notify_on_release: ... is failed")' or some workaround ? > Sounds reasonable for debugging, but don't expect any automated middleware to notice it. Paul