Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754837Ab2HBOPY (ORCPT ); Thu, 2 Aug 2012 10:15:24 -0400 Received: from a.ns.miles-group.at ([95.130.255.143]:47834 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754390Ab2HBOPW (ORCPT ); Thu, 2 Aug 2012 10:15:22 -0400 Date: Thu, 2 Aug 2012 16:15:12 +0200 From: Richard Weinberger To: artem.bityutskiy@linux.intel.com Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, Heinz.Egger@linutronix.de, thomas.wucher@linutronix.de, shmulik.ladkani@gmail.com, tglx@linutronix.de, tim.bird@am.sony.com, Marius.Mazarel@ugal.ro, nyoushchenko@mvista.com Subject: Re: UBI fastmap updates Message-ID: <20120802161512.5ac7a303@spider.haslach.nod.at> In-Reply-To: <1343916747.25013.112.camel@sauron.fi.intel.com> References: <1341836323-43916-1-git-send-email-richard@nod.at> <1343916747.25013.112.camel@sauron.fi.intel.com> X-Mailer: Claws Mail 3.7.10 (GTK+ 2.24.7; x86_64-suse-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1248 Lines: 35 Artem, Am Thu, 02 Aug 2012 17:12:27 +0300 schrieb Artem Bityutskiy : > On Mon, 2012-07-09 at 14:18 +0200, Richard Weinberger wrote: > > This is the next round of UBI fastmap updates. > > It fixes all issues pointed out by Shmulik. :-) > > I see the following errors when rung UBI tests on nandsim: > > [ 3698.041511] UBI error: __wl_get_peb: no free eraseblocks > [ 3698.041781] UBI error: ubi_wl_get_fm_peb: no free eraseblocks > [ 3714.773064] UBI error: __wl_get_peb: no free eraseblocks > [ 3714.773336] UBI error: ubi_wl_get_fm_peb: no free eraseblocks > > How can this happen? I do not have any bad blocks. > > If I understand correctly, it can be only because of a bug. If I am > correct, could you please add a 'dump_stack()' to improve the error > report? > This can happen if all PEBs are used and fastmap is unable to find (or produce) an empty one. In this case fastmap takes care that no invalid or outdated fastmap is on flash. Thanks, //richard -- 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/