From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id A0D716B0012 for ; Tue, 31 May 2011 03:59:43 -0400 (EDT) Date: Tue, 31 May 2011 03:59:38 -0400 (EDT) From: CAI Qian Message-ID: <348391538.318712.1306828778575.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <4DE49F44.10809@jp.fujitsu.com> Subject: Re: [PATCH v2 0/5] Fix oom killer doesn't work at all if system have > gigabytes memory (aka CAI founded issue) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: KOSAKI Motohiro Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, rientjes@google.com, hughd@google.com, kamezawa hiroyu , minchan kim , oleg@redhat.com ----- Original Message ----- > (2011/05/31 16:50), CAI Qian wrote: > > > > > > ----- Original Message ----- > >>>> - If you run the same program as root, non root process and > >>>> privilege > >>>> explicit > >>>> dropping processes (e.g. irqbalance) will be killed at first. > >>> Hmm, at least there were some programs were root processes but > >>> were > >>> killed > >>> first. > >>> [ pid] ppid uid total_vm rss swap score_adj name > >>> [ 5720] 5353 0 24421 257 0 0 sshd > >>> [ 5353] 1 0 15998 189 0 0 sshd > >>> [ 5451] 1 0 19648 235 0 0 master > >>> [ 1626] 1 0 2287 129 0 0 dhclient > >> > >> Hi > >> > >> I can't reproduce this too. Are you sure these processes have a > >> full > >> root privilege? > >> I've made new debugging patch. After applying following patch, do > >> these processes show > >> cap=1? > > No, all of them had cap=0. Wondering why something like sshd not > > been > > made cap=1 to avoid early oom kill. > > Then, I believe your distro applying distro specific patch to ssh. > Which distro are you using now? It is a Fedora-like distro. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org