From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx111.postini.com [74.125.245.111]) by kanga.kvack.org (Postfix) with SMTP id 4F6456B005D for ; Thu, 6 Dec 2012 03:09:09 -0500 (EST) Message-ID: <50C052A2.90303@leemhuis.info> Date: Thu, 06 Dec 2012 09:09:06 +0100 From: Thorsten Leemhuis MIME-Version: 1.0 Subject: Re: kswapd craziness in 3.7 References: <20121127222637.GG2301@cmpxchg.org> <20121128101359.GT8218@suse.de> <20121128145215.d23aeb1b.akpm@linux-foundation.org> <20121128235412.GW8218@suse.de> <50B77F84.1030907@leemhuis.info> <20121129170512.GI2301@cmpxchg.org> <50B8A8E7.4030108@leemhuis.info> <20121201004520.GK2301@cmpxchg.org> <50BC6314.7060106@leemhuis.info> <20121203194208.GZ24381@cmpxchg.org> In-Reply-To: <20121203194208.GZ24381@cmpxchg.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Johannes Weiner Cc: Mel Gorman , Andrew Morton , Linus Torvalds , Rik van Riel , George Spelvin , Johannes Hirte , Tomas Racek , Jan Kara , Dave Hansen , Josh Boyer , Valdis Kletnieks , Jiri Slaby , Zdenek Kabelac , Bruno Wolff III , linux-mm , Linux Kernel Mailing List , John Ellson Hi! Just a quick update Johannes Weiner wrote on 03.12.2012 20:42: > On Mon, Dec 03, 2012 at 09:30:12AM +0100, Thorsten Leemhuis wrote: > >> BTW, I built that kernel without the patch you mentioned in >> http://thread.gmane.org/gmane.linux.kernel.mm/90911/focus=91153 >> ("buffer_heads_over_limit can put kswapd into reclaim, but it's ignored >> [...]) It looked to me like that patch was only meant for debugging. Let >> me know if that was wrong. Ohh, and I didn't update to a fresher >> mainline checkout yet to make sure the base for John's testing didn't >> change. > > Ah, yes, the ApplyPatch is commented out. > > I think we want that upstream as well, but it's not critical. > [...] Sorry, it had no "Singed-off-by", so I assumed it was just for debugging. > Not rebasing sounds reasonable to me to verify the patch. It might be > worth testing that the final version that will be 3.8 still works for > John, however, once that is done. Just to be sure. Just to be sure, I yesterday built a rc8 kernel with the patch referenced above and the one that is not yet merged (these two, to be precise: http://thread.gmane.org/gmane.linux.kernel.mm/90911/focus=91153 http://thread.gmane.org/gmane.linux.kernel.mm/90911/focus=91300 ; all the others patches my kswap test kernels contained earlier were afaics merged a few days ago) and mentioned it in the Fedora bug report. John gave them a try and in https://bugzilla.redhat.com/show_bug.cgi?id=866988#c65 reported "No problems so far. I'll check back again in ~24hours." CU, Thorsten -- 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