Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753183Ab0KEVl5 (ORCPT ); Fri, 5 Nov 2010 17:41:57 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:52268 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751954Ab0KEVlz convert rfc822-to-8bit (ORCPT ); Fri, 5 Nov 2010 17:41:55 -0400 MIME-Version: 1.0 In-Reply-To: <20101105213456.GB25520@quack.suse.cz> References: <20100212091609.GB1025@kernel.dk> <20100215144938.GD3434@quack.suse.cz> <20101031122437.GA6296@quack.suse.cz> <20101031224012.GB13207@quack.suse.cz> <20101105213324.GA25520@quack.suse.cz> <20101105213456.GB25520@quack.suse.cz> From: Linus Torvalds Date: Fri, 5 Nov 2010 14:41:33 -0700 Message-ID: Subject: Re: Sync writeback still broken To: Jan Kara Cc: Jan Engelhardt , Andrew Morton , Jens Axboe , Linux Kernel , stable@kernel.org, gregkh@suse.de Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1135 Lines: 24 On Fri, Nov 5, 2010 at 2:34 PM, Jan Kara wrote: > On Fri 05-11-10 22:33:24, Jan Kara wrote: >> ? I needed one more patch to resolve the issue (attached) which I've just >> posted for review and possible inclusion. I had a similar one long time ago >> but now I'm better able to explain why it works because of tracepoints. >> Yay! ;). With those three patches I'm not able to trigger livelocks (but >> sync takes still 15 minutes because the througput to disk is about 4MB/s - >> no big surprise given the random nature of the load) > ?PS: And big thanks to you for providing the test case and your > persistence ;) Ok, I'm inclined to just apply these three patches. Can we get a quick ack/tested-by for them? I'm sure there's more work to be done, but let's put this damn thing to rest if it really does fix the problem Jan(E) sees. Comments? Linus -- 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/