From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id E4DA45F004B for ; Tue, 19 Oct 2010 23:47:41 -0400 (EDT) Subject: Re: oom_killer crash linux system From: "Figo.zhang" In-Reply-To: <20101020122137.1824.A69D9226@jp.fujitsu.com> References: <20101020112828.1818.A69D9226@jp.fujitsu.com> <1287543520.2074.1.camel@myhost> <20101020122137.1824.A69D9226@jp.fujitsu.com> Content-Type: text/plain; charset="UTF-8" Date: Wed, 20 Oct 2010 11:43:45 +0800 Message-ID: <1287546225.2121.14.camel@myhost> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: KOSAKI Motohiro , Wu Fengguang Cc: KAMEZAWA Hiroyuki , Minchan Kim , "linux-kernel@vger.kernel.org" , "rientjes@google.com" , figo1802 , "linux-mm@kvack.org" List-ID: > > active_anon:398375 inactive_anon:82967 isolated_anon:0 > > active_file:81 inactive_file:429 isolated_file:32 > > unevictable:13 dirty:2 writeback:14 unstable:0 > > free:11942 slab_reclaimable:2391 slab_unreclaimable:3303 > > mapped:5617 shmem:33909 pagetables:2280 bounce:0 > > active_anon + inactive_anon + isolated_anon = 481342 pages ~= 1.8GB > Um, this oom doesn't makes accounting lost. > > > here is the page-types log: > > flags page-count MB symbolic-flags long-symbolic-flags > > > > 0x0000000000005828 83024 324 ___U_l_____Ma_b___________________ uptodate,lru,mmap,anonymous,swapbacked > > 0x0000000000005868 358737 1401 ___U_lA____Ma_b___________________ uptodate,lru,active,mmap,anonymous,swapbacked > > total 515071 2011 > > page-types show similar result. > > > The big difference is, previous and current are showing some different processes. > only previous has VirtualBox, only current has vmware-usbarbit, etc.. > > Can you use same test environment? yes, it is the same desktop, and i open some pdf files and applications by random. but when my desktop eat up to 1.8GB RAM (active_anon + inactive_anon + isolated_anon = 481342 pages >= 1.8GB), the system became extraordinary slow. when i move the mouse, the mouse cant move a little on screen. i deem it have "crashed", but i ping it's ip by other desktop, it is ok. so what is apect affect the system seem to "crashed", page-writeback? page-reclaimed? and the oom-killer seem to be very conservative? in that condition , oom_killer must kill some process to release memory for new process. -- 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/ . Don't email: email@kvack.org