Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 5 Jul 2001 14:56:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 5 Jul 2001 14:56:42 -0400 Received: from nat-pool-meridian.redhat.com ([199.183.24.200]:55827 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id ; Thu, 5 Jul 2001 14:56:33 -0400 Date: Thu, 5 Jul 2001 14:56:33 -0400 From: Pete Zaitcev Message-Id: <200107051856.f65IuXf29897@devserv.devel.redhat.com> To: linux-kernel@vger.kernel.org Subject: Re: Is Swapping on software RAID1 possible in linux 2.4 ? In-Reply-To: In-Reply-To: <1011478953412.20010705152412@spylog.ru> <15172.22988.643481.421716@notabene.cse.unsw.edu.au> <11486070195.20010705172249@spylog.ru> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org In linux-kernel, you wrote: > Peter Zaitsev wrote: > > > > That's why I thought this problem is related to raid1 swapping I'm > > using. > > Well there is the potential problem that RAID1 has that it can't avoid allocating > memory in some occasions, for the 2nd bufferhead. ATARAID raid0 has the same problem for > now, and there is no real solution to this. You can pre-allocate a bunch of bufferheads, > but under high load you will run out of those, no matter how many you pre-allocate. Arjan, why doesn't it sleep instead (GFP_KERNEL)? -- Pete - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/