From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2074522-1516291909-2-14744986294354916805 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='cz', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-usb-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1516291908; b=H/eQ2rYlyLLX2exQTLD+OmLqP+LnyZjxuAz7YzjRO0EYahl kyjimD2f4EENbPhBC5rzRdprCPlBYazd3j5lbQ74ijskJvSR1oqS8jt1kCPTgklc jJ4pK68z77aCoD+zjUcgzSiNNzI7elOdi0QFKJtL5TLFmA+Q7W1ZmMKuIdMorrGb TTCSWEBkw2pscxJOO+6Axg+ncxJsSZRMErJUcdmt/GMIHT6MGY2DkcWxjMJgQs5s j+8Sducq7vTO2cAYZI3Q8vI8Z+l/oRXVdqetlQsWEjFNb011nrIgGPFRuQaund0R dfW00xXSHRLsIlsCpyemaiL0bUwJIumJKkyuZKg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :reply-to:references:mime-version:content-type:in-reply-to :sender:list-id; s=arctest; t=1516291908; bh=cZqBXAclVZhjeaVU9XP WuHkC8/IHvoa9zYOhzdwZ1KA=; b=Akha3MAxat0qkjZELhimrGmq+VjG6tUUceh /ghXeYQC8PLQEa8mZxyDiJFmQpXxPuH9I9V8bXJu9m6DtUD3U17mNx4YYH2xrl4F 12hR31B2gD9Fg6vYE0PAz+TmvxZb7ye5/NpLBE8E+Bj37GkP3WEx1z29+bMRNeK0 SdLdey1e6ANlICWTYCnGRLRrKb/T6FTVrixyEiCFSY8uZQ58ddJ7R1dHhrWjukST bn+yEDU0JoWGUaE7po0DE/Gn53dZttI0TZ/986+ZhIF3i0ZJBZMh46JalPf7yiMs BZbxSwjfn5/vWf8n7jKkmjU8aefSA7i07BInk6mhxAbOgobdwMQ== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=suse.cz; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=suse.cz header.result=pass header_is_org_domain=yes Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=suse.cz; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=suse.cz header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933213AbeARQKH (ORCPT ); Thu, 18 Jan 2018 11:10:07 -0500 Received: from mx2.suse.de ([195.135.220.15]:51452 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755287AbeARQKD (ORCPT ); Thu, 18 Jan 2018 11:10:03 -0500 Date: Thu, 18 Jan 2018 17:07:50 +0100 From: David Sterba To: Matthew Wilcox Cc: linux-kernel@vger.kernel.org, Matthew Wilcox , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-usb@vger.kernel.org, Bjorn Andersson , Stefano Stabellini , iommu@lists.linux-foundation.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, intel-gfx@lists.freedesktop.org, cgroups@vger.kernel.org, linux-sh@vger.kernel.org, David Howells Subject: Re: [PATCH v6 00/99] XArray version 6 Message-ID: <20180118160749.GP13726@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Matthew Wilcox , linux-kernel@vger.kernel.org, Matthew Wilcox , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-usb@vger.kernel.org, Bjorn Andersson , Stefano Stabellini , iommu@lists.linux-foundation.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, intel-gfx@lists.freedesktop.org, cgroups@vger.kernel.org, linux-sh@vger.kernel.org, David Howells References: <20180117202203.19756-1-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180117202203.19756-1-willy@infradead.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-usb-owner@vger.kernel.org X-Mailing-List: linux-usb@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Wed, Jan 17, 2018 at 12:20:24PM -0800, Matthew Wilcox wrote: > From: Matthew Wilcox > > This version of the XArray has no known bugs. I've booted this patchset on 2 boxes, both had random problems during boot. On one I was not able to diagnose what went wrong. On the other one the system booted up to userspace and failed to set up networking. Serial console worked and the network service complained about wrong format of /usr/share/wicked/schema/team.xml . That's supposed to be a text file, though hexdump showed me lots of zeros. Trimmed output: 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * (similar output here) * 00000a10 00 00 00 00 00 00 00 00 11 03 00 00 00 00 00 00 |................| 00000a20 20 8b 7f 01 00 00 00 00 a0 84 7d 01 00 00 00 00 | .........}.....| 00000a30 00 00 00 00 00 00 00 00 10 89 7f 01 00 00 00 00 |................| 00000a40 a0 84 7d 01 00 00 00 00 00 00 00 00 00 00 00 00 |..}.............| 00000a50 80 8a 7f 01 00 00 00 00 e0 cf 7d 01 00 00 00 00 |..........}.....| 00000a60 00 00 00 00 00 00 00 00 60 8a 7f 01 00 00 00 00 |........`.......| 00000a70 a0 84 7d 01 00 00 00 00 00 00 00 00 00 00 00 00 |..}.............| 00000a80 30 89 7f 01 00 00 00 00 a0 84 7d 01 00 00 00 00 |0.........}.....| 00000a90 00 00 00 00 00 00 00 00 60 f2 7f 01 00 00 00 00 |........`.......| 00000aa0 40 fd 7e 01 00 00 00 00 00 00 00 00 00 00 00 00 |@.~.............| 00000ab0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00001000 3e 0a 20 20 3c 2f 6d 65 74 68 6f 64 3e 0a 3c 2f |>. ..| There's something at the end of the file that does look like a xml fragment. The file size is 4121. This looks to me like exactly the first page of the file was not read correctly. The xml file is supposed to be read-only during startup, so there was no write in flight. 'rpm -Vv' reported only this file corrupted. Booting to other kernels was fine, network up, and the file was ok again. So the corruption happened only in memory, which leads me to conclusion that there is an unknown bug in your patchset.