From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta8.messagelabs.com (mail6.bemta8.messagelabs.com [216.82.243.55]) by kanga.kvack.org (Postfix) with ESMTP id 77AEC6B002F for ; Fri, 21 Oct 2011 04:07:09 -0400 (EDT) From: Pawel Sikora Subject: Re: kernel 3.0: BUG: soft lockup: find_get_pages+0x51/0x110 Date: Fri, 21 Oct 2011 10:07:05 +0200 Message-ID: <2109011.boM0eZ0ZTE@pawels> In-Reply-To: References: <201110122012.33767.pluto@agmk.net> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: owner-linux-mm@kvack.org List-ID: To: Nai Xia Cc: Hugh Dickins , arekm@pld-linux.org, Linus Torvalds , linux-mm@kvack.org, Mel Gorman , jpiszcz@lucidpixels.com, linux-kernel@vger.kernel.org, Andrew Morton , Andrea Arcangeli On Friday 21 of October 2011 14:22:37 Nai Xia wrote: > And as a side note. Since I notice that Pawel's workload may include OOM, my last tests on patched (3.0.4 + migrate.c fix + vserver) kernel produce full cpu load on dual 8-cores opterons like on this htop screenshot -> http://pluto.agmk.net/kernel/screen1.png afaics all userspace applications usualy don't use more than half of physical memory and so called "cache" on htop bar doesn't reach the 100%. the patched kernel with disabled CONFIG_TRANSPARENT_HUGEPAGE (new thing in 2.6.38) died at night, so now i'm going to disable also CONFIG_COMPACTION/MIGRATION in next steps and stress this machine again... -- 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