From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.17.22]:55743 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751164AbdJ1H6h (ORCPT ); Sat, 28 Oct 2017 03:58:37 -0400 Subject: Re: USB upgrade fun To: Kai Hendry , "Austin S. Hemmelgarn" , Chris Murphy Cc: Btrfs BTRFS References: <1507456690.745489.1131538472.25270157@webmail.messagingengine.com> <0a3e71f7-1a8e-9a4f-7470-4c5cc2fb11a0@gmail.com> <1507858974.1236555.1137202920.267B449B@webmail.messagingengine.com> <1509174195.600847.1153723936.0D8751F2@webmail.messagingengine.com> From: Qu Wenruo Message-ID: <8cff4fc5-6a33-e076-bfdb-d40dca8023ed@gmx.com> Date: Sat, 28 Oct 2017 15:58:21 +0800 MIME-Version: 1.0 In-Reply-To: <1509174195.600847.1153723936.0D8751F2@webmail.messagingengine.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="aqMjj4XWekcPL2o6TSr8NR6gcTCg4gF7e" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --aqMjj4XWekcPL2o6TSr8NR6gcTCg4gF7e Content-Type: multipart/mixed; boundary="mtXitfBw9jweN2g5boUGgcuTEUr8Nw4gj"; protected-headers="v1" From: Qu Wenruo To: Kai Hendry , "Austin S. Hemmelgarn" , Chris Murphy Cc: Btrfs BTRFS Message-ID: <8cff4fc5-6a33-e076-bfdb-d40dca8023ed@gmx.com> Subject: Re: USB upgrade fun References: <1507456690.745489.1131538472.25270157@webmail.messagingengine.com> <0a3e71f7-1a8e-9a4f-7470-4c5cc2fb11a0@gmail.com> <1507858974.1236555.1137202920.267B449B@webmail.messagingengine.com> <1509174195.600847.1153723936.0D8751F2@webmail.messagingengine.com> In-Reply-To: <1509174195.600847.1153723936.0D8751F2@webmail.messagingengine.com> --mtXitfBw9jweN2g5boUGgcuTEUr8Nw4gj Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2017=E5=B9=B410=E6=9C=8828=E6=97=A5 15:03, Kai Hendry wrote: > On Fri, 13 Oct 2017, at 09:42 AM, Kai Hendry wrote: >> It probably is... since when I remove my new 4TB USB disk from the >> front, I am at least able to mount my two 2x2TB in degraded mode and s= ee >> my data! >=20 > Just a follow up. I have not been of late been able to mount my data, > even in degraded mode. >=20 > However someone on #btrfs suggested I try an older Linux kernel & I als= o > found https://www.spinics.net/lists/linux-btrfs/msg69905.html to > reaffirm my suspicions. >=20 > Low and behold I can mount with an older kernel > (linux-4.4.3-1-x86_64.pkg.tar.xz) !! But if I reboot into 4.13.9-1-ARCH= , > no worky: >=20 > [ 489.139903] BTRFS warning (device sdb1): devid 3 uuid > e5f03f81-35e7-4a29-9608-bd78864cc0ad is missing > [ 489.524334] BTRFS info (device sdb1): bdev (null) errs: wr 0, rd 1, > flush 0, corrupt 0, gen 0 > [ 489.524367] BTRFS info (device sdb1): bdev /dev/sdb1 errs: wr 13361,= > rd 31990017, flush 155, corrupt 0, gen 0 > [ 502.934069] BTRFS warning (device sdb1): missing devices (1) exceeds= > the limit (0), writeable mount is not allowed > [ 502.980748] BTRFS error (device sdb1): open_ctree failed >=20 >=20 > Does anyone know how I can track the progress of "--fix-dev-size"? It > doesn't seem part of btrfs-progs 4.13-1... >=20 Didn't follow the whole thread, so I can't say much about the original problem. But concerning "--fix-dev-size", it's not merged into mainline yet. So if you really want to try it, you could use the out-of-tree btrfs-prog= s: https://github.com/adam900710/btrfs-progs/tree/check_unaligned_dev Don't get confused with the name, to use "fix-dev-size" you need to run "btrfs rescue fix-dev-size" However, according to your kernel message, it seems that you're missing one device, in which case "fix-dev-size" can't handle yet. So I'm afraid it can't help much for your case. Thanks, Qu --mtXitfBw9jweN2g5boUGgcuTEUr8Nw4gj-- --aqMjj4XWekcPL2o6TSr8NR6gcTCg4gF7e Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQFLBAEBCAA1FiEELd9y5aWlW6idqkLhwj2R86El/qgFAln0OJ0XHHF1d2VucnVv LmJ0cmZzQGdteC5jb20ACgkQwj2R86El/qi2Xwf+K8o4/+K+gC4MM/JKZRLKHE7P 9kf1hOdBsOp4rR0+QEnxNAzAFuPiaV29JoHHkPZRy66SJCBm25pH6x2GqnwVM8Gc 1foJfxI18NGVwnreM3PtVLpexUdzYgupPulx0GLRMqbbaSrbZ5ElnAT2v9nFoANi yZhS67LYom+XX9t9l5fCOoH+WcvbQJkhywK0xrkOgi/F3fSeHCwaN7Ml5ey+7RwQ 6dZp4Z7U5gXcoDWf+E5t8BeiXOdgQiK3d3LmYodhIXE4nW7HD7V41KPWdMY0jgUK gGrLkVVDjucMwZwZBDmbB/bRW/WDG+MpQRjGgN8zWneVPa6Xrq0B1NWNc8su8g== =4lV3 -----END PGP SIGNATURE----- --aqMjj4XWekcPL2o6TSr8NR6gcTCg4gF7e--