From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with ESMTP id CAFD56B004D for ; Thu, 16 Jul 2009 00:26:59 -0400 (EDT) Date: Wed, 15 Jul 2009 21:26:57 -0700 From: Andrew Morton Subject: Re: [PATCH -mm] throttle direct reclaim when too many pages are isolated already (v3) Message-Id: <20090715212657.aa85089a.akpm@linux-foundation.org> In-Reply-To: <4A5EA7E1.7030403@redhat.com> References: <20090715223854.7548740a@bree.surriel.com> <20090715194820.237a4d77.akpm@linux-foundation.org> <4A5E9A33.3030704@redhat.com> <20090715202114.789d36f7.akpm@linux-foundation.org> <4A5E9E4E.5000308@redhat.com> <20090715203854.336de2d5.akpm@linux-foundation.org> <20090715235318.6d2f5247@bree.surriel.com> <20090715210253.bc137b2d.akpm@linux-foundation.org> <4A5EA7E1.7030403@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Rik van Riel Cc: KOSAKI Motohiro , LKML , linux-mm , Wu Fengguang List-ID: On Thu, 16 Jul 2009 00:09:05 -0400 Rik van Riel wrote: > > If we were to step back and approach this in a broader fashion, perhaps > > we would find some commonality with the existing TIF_MEMDIE handling, > > dunno. > > Good point - what is it that makes TIF_MEMDIE special > wrt. other fatal signals, anyway? > > I wonder if we should not simply "help along" any task > with fatal signals pending, anywhere in the VM (and maybe > other places in the kernel, too). > > The faster we get rid of a killed process, the sooner its > resources become available to the other processes. Spose so. Are their any known (or makeable uppable) situations in which such a change would be beneficial? Maybe if the system is in a hopeless swapstorm and someone is killing processes in an attempt to get control back. -- 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