From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752393Ab2DHAPH (ORCPT ); Sat, 7 Apr 2012 20:15:07 -0400 Received: from beauty.rexursive.com ([150.101.121.179]:37761 "EHLO beauty.rexursive.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750875Ab2DHAPF (ORCPT ); Sat, 7 Apr 2012 20:15:05 -0400 References: <1333418527.2035.11.camel@shrek.rexursive.com> <201204030631.24974.rjw@sisk.pl> <1333432393.2035.13.camel@shrek.rexursive.com> <1333620908.8191.1.camel@shrek.rexursive.com> User-Agent: K-9 Mail for Android In-Reply-To: <1333620908.8191.1.camel@shrek.rexursive.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v8]: Hibernation: lower/better control the amount of pages used for buffering From: Bojan Smojver Date: Sun, 08 Apr 2012 10:14:59 +1000 To: "Rafael J. Wysocki" , "Rafael J. Wysocki" CC: linux-kernel@vger.kernel.org, Linux PM list Message-ID: <2cbc3801-3ab0-4ef6-84cd-d69a23ff4dcc@email.android.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Bojan Smojver wrote: >I just got confirmation that the patch indeed solves the hang problem >in >3.2 and page allocation errors in 3.3: > >https://bugzilla.redhat.com/show_bug.cgi?id=785384#c68 > >Could you please queue it up for 3.4 and then stable. Please ignore this request. As it turns out, the hangs are still there, it just takes a bit longer to trigger. We must be leaking pages during hibernation somehow, although I cannot replicate this on my system. I think I will have to revert I/O improvements on image save for now or maybe replace then with a bit of async I/O in a separate thread to at least retain a bit of the performance gains. Will keep you posted. -- Bojan