Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754212Ab0DLVue (ORCPT ); Mon, 12 Apr 2010 17:50:34 -0400 Received: from mail.skyhub.de ([78.46.96.112]:56596 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753788Ab0DLVuc (ORCPT ); Mon, 12 Apr 2010 17:50:32 -0400 Date: Mon, 12 Apr 2010 23:50:27 +0200 From: Borislav Petkov To: Linus Torvalds Cc: Johannes Weiner , KOSAKI Motohiro , Rik van Riel , Andrew Morton , Minchan Kim , Linux Kernel Mailing List , Lee Schermerhorn , Nick Piggin , Andrea Arcangeli , Hugh Dickins , sgunderson@bigfoot.com Subject: Re: [PATCH -v2] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA Message-ID: <20100412215027.GA6263@liondog.tnic> Mail-Followup-To: Borislav Petkov , Linus Torvalds , Johannes Weiner , KOSAKI Motohiro , Rik van Riel , Andrew Morton , Minchan Kim , Linux Kernel Mailing List , Lee Schermerhorn , Nick Piggin , Andrea Arcangeli , Hugh Dickins , sgunderson@bigfoot.com References: <20100410215115.GA2599@a1.tnic> <20100411130801.GA7189@a1.tnic> <20100411185508.GA4450@liondog.tnic> <20100412072056.GA2432@liondog.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1507 Lines: 37 From: Linus Torvalds Date: Mon, Apr 12, 2010 at 09:26:57AM -0700 > I have a new theory. And this new theory is completely different from all > the other things we've been looking at. Yeah, because all starts with "I have a new theory..." :o) > The patch below is my largely mindless try at fixing this. It's untested. > I'm not entirely sure that it actually works. But it makes some amount of > conceptual sense. No? Linus, are you trying to give me a heart-attack? This sh*t just survived 20(!) hibernation runs without a problem (well, there is this nagging /sysfs lockdep warning) but apart from that, it survived! I even did my all time best when hitting on it. Normally, it used to crap up on the 6th cycle as latest. Now we're rock solid. And yes, there were something like ~64Mb in the swap cache. Also, I have your verification stuff in addition to the 4 patches you sent before. Not a single WARN_ONCE got triggered. So I have a gut feeling that it is fixed but you never know with these beasts. As before, I'll rebuild and reapply everything in the morning and retest just in case. And I guess I'll have to test all following -rc's so that we can be absolutely sure. So cheers! -- Regards/Gruss, Boris. -- 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/