From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.17.21]:62503 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752037AbeAOB0v (ORCPT ); Sun, 14 Jan 2018 20:26:51 -0500 Subject: Re: invalid files names, btrfs check can't repair it To: Sebastian Andrzej Siewior Cc: linux-btrfs@vger.kernel.org, Chris Mason , Josef Bacik , David Sterba References: <20180112210439.2ivh2wmlq2uuisjo@breakpoint.cc> <1471d17b-3b53-b2c3-4a84-cb6df98c375e@gmx.com> <20180113204114.g4jup552d5g5o5pa@breakpoint.cc> <20180114163854.rghjpsx2ikwmqo7m@breakpoint.cc> From: Qu Wenruo Message-ID: Date: Mon, 15 Jan 2018 09:26:27 +0800 MIME-Version: 1.0 In-Reply-To: <20180114163854.rghjpsx2ikwmqo7m@breakpoint.cc> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="b0IcZCRZLUWM2olXbPd03r70X3TNTxsB1" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --b0IcZCRZLUWM2olXbPd03r70X3TNTxsB1 Content-Type: multipart/mixed; boundary="2YG54meZeez6XV0y9toqRsEyWBWZjP41Z"; protected-headers="v1" From: Qu Wenruo To: Sebastian Andrzej Siewior Cc: linux-btrfs@vger.kernel.org, Chris Mason , Josef Bacik , David Sterba Message-ID: Subject: Re: invalid files names, btrfs check can't repair it References: <20180112210439.2ivh2wmlq2uuisjo@breakpoint.cc> <1471d17b-3b53-b2c3-4a84-cb6df98c375e@gmx.com> <20180113204114.g4jup552d5g5o5pa@breakpoint.cc> <20180114163854.rghjpsx2ikwmqo7m@breakpoint.cc> In-Reply-To: <20180114163854.rghjpsx2ikwmqo7m@breakpoint.cc> --2YG54meZeez6XV0y9toqRsEyWBWZjP41Z Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2018=E5=B9=B401=E6=9C=8815=E6=97=A5 00:38, Sebastian Andrzej Siewior w= rote: > On 2018-01-14 08:36:41 [+0800], Qu Wenruo wrote: >> Still needs more. (and maybe even more depending on the output) >> >> The original mode doesn't report error clear enough, so it would help = if >> --mode=3Dlowmem can be used. >> >> # btrfs check --mode=3Dlowmem /dev/sdb4 >=20 > ~# btrfs check --mode=3Dlowmem /dev/sdb4 > Checking filesystem on /dev/sdb4 > UUID: b3bfb56e-d445-4335-93f0-c1fb2d1f6df1 > checking extents > checking free space cache > Wanted bytes 4096, found 8192 for off 159178047488 > Wanted bytes 1073725440, found 8192 for off 159178047488 > cache appears valid but isn't 159178031104 > ERROR: errors found in free space cache A new bug is exposed for lowmem mode. It doesn't check fs tree if space cache has any problem. > found 63691210752 bytes used, error(s) found > total csum bytes: 61339388 > total tree bytes: 860540928 > total fs tree bytes: 688816128 > total extent tree bytes: 84549632 > btree space waste bytes: 224428280 > file data blocks allocated: 62890483712 > referenced 62828957696 >=20 >> And the tree dump of the affected dir inode would help too: >> >> # btrfs inspect dump-tree /dev/sdb4 | grep -C 20 \(57648595 >=20 > ~# btrfs inspect dump-tree /dev/sdb4 | grep -C 20 \(57648595 > generation 88831 type 1 (regular) > extent data disk byte 193705541632 nr 134217728 > extent data offset 0 nr 134217728 ram 134217728 > extent compression 0 (none) > item 4 key (57022249 EXTENT_DATA 402653184) itemoff 3769 itemsi= ze 53 > generation 88831 type 1 (regular) > extent data disk byte 190035439616 nr 60600320 > extent data offset 0 nr 60600320 ram 60600320 > extent compression 0 (none) > item 5 key (57643659 INODE_ITEM 0) itemoff 3609 itemsize 160 > generation 89044 transid 89423 size 2 nbytes 0 > block group 0 mode 40755 links 1 uid 1000 gid 1000 rdev= 0 > sequence 0 flags 0x150be(none) > atime 1513266994.264310920 (2017-12-14 16:56:34) > ctime 1513868332.369178014 (2017-12-21 15:58:52) > mtime 1513868332.369178014 (2017-12-21 15:58:52) > otime 1513266994.264310920 (2017-12-14 16:56:34) > item 6 key (57643659 INODE_REF 58477961) itemoff 3598 itemsize = 11 > index 6 namelen 1 name: 4 > item 7 key (57643659 DIR_ITEM 4189400016) itemoff 3567 itemsize= 31 > location key (57648595 INODE_ITEM 0) type DIR > transid 89045 data_len 0 name_len 1 > name: d > item 8 key (57643659 DIR_INDEX 113) itemoff 3536 itemsize 31 > location key (57648595 INODE_ITEM 0) type DIR > transid 89045 data_len 0 name_len 1 > name: d > item 9 key (57643872 INODE_ITEM 0) itemoff 3376 itemsize 160 > generation 89044 transid 89699 size 0 nbytes 0 > block group 0 mode 40755 links 1 uid 1000 gid 1000 rdev= 0 > sequence 0 flags 0x603b3(none) > atime 1513266995.540343055 (2017-12-14 16:56:35) > ctime 1515602448.66422211 (2018-01-10 17:40:48) > mtime 1515602448.66422211 (2018-01-10 17:40:48) > otime 1513266995.540343055 (2017-12-14 16:56:35) > item 10 key (57643872 INODE_REF 682) itemoff 3363 itemsize 13 > index 58 namelen 3 name: tmp > item 11 key (57648595 INODE_ITEM 0) itemoff 3203 itemsize 160 > generation 89045 transid 89423 size 8350 nbytes 0 > block group 0 mode 40755 links 1 uid 1000 gid 1000 rdev= 0 > sequence 0 flags 0xc90(none) > atime 1513267009.164686143 (2017-12-14 16:56:49) > ctime 1513868329.753150507 (2017-12-21 15:58:49) > mtime 1513868329.753150507 (2017-12-21 15:58:49) > otime 1513267009.164686143 (2017-12-14 16:56:49) > item 12 key (57648595 INODE_REF 57643659) itemoff 3192 itemsize= 11 > index 113 namelen 1 name: d > item 13 key (57648595 DIR_ITEM 3331247447) itemoff 3123 itemsiz= e 69 > location key (58472210 INODE_ITEM 0) type FILE > transid 89418 data_len 0 name_len 8231 > name: 454bf066ddfbf42e0f3b77ea71c82f-878732.oq > item 14 key (57648595 DIR_ITEM 3363354030) itemoff 3053 itemsiz= e 70 > location key (57923894 INODE_ITEM 0) type DIR_ITEM.33 > transid 89142 data_len 0 name_len 40 > name: 2f3f379b2a3d7499471edb74869efe-1948311.d > item 15 key (57648595 DIR_INDEX 435) itemoff 2983 itemsize 70 > location key (57923894 INODE_ITEM 0) type FILE Please run the following command too: # btrfs inspect dump-tree | grep -C20 \(57923894 > transid 89142 data_len 0 name_len 40 > name: 2f3f379b2a3d7499471edb74869efe-1948311.d > item 16 key (57648595 DIR_INDEX 1137) itemoff 2914 itemsize 69 > location key (58472210 INODE_ITEM 0) type FILE And this command too: # btrfs inspect dump-tree | grep -C20 \(58472210 Thanks, Qu > transid 89418 data_len 0 name_len 39 > name: 454bf066ddfbf42e0f3b77ea71c82f-878732.o > item 17 key (57923894 INODE_ITEM 0) itemoff 2754 itemsize 160 > generation 89142 transid 89142 size 36092 nbytes 36864 > block group 0 mode 100644 links 1 uid 1000 gid 1000 rde= v 0 > sequence 0 flags 0x91(none) > atime 1513278413.460486168 (2017-12-14 20:06:53) > ctime 1513278413.460486168 (2017-12-14 20:06:53) > mtime 1513278413.460486168 (2017-12-14 20:06:53) > otime 1513278413.460486168 (2017-12-14 20:06:53) > item 18 key (57923894 INODE_REF 57648595) itemoff 2704 itemsize= 50 > index 435 namelen 40 name: 2f3f379b2a3d7499471edb74869e= fe-1948311.d > item 19 key (57923894 EXTENT_DATA 0) itemoff 2651 itemsize 53 > generation 89142 type 1 (regular) > extent data disk byte 123290755072 nr 36864 > extent data offset 0 nr 36864 ram 36864 > extent compression 0 (none) > item 20 key (58191388 INODE_ITEM 0) itemoff 2491 itemsize 160 > generation 89259 transid 89259 size 395280 nbytes 39731= 2 >> Thanks, >> Qu >=20 > Sebastian >=20 --2YG54meZeez6XV0y9toqRsEyWBWZjP41Z-- --b0IcZCRZLUWM2olXbPd03r70X3TNTxsB1 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQFLBAEBCAA1FiEELd9y5aWlW6idqkLhwj2R86El/qgFAlpcA0MXHHF1d2VucnVv LmJ0cmZzQGdteC5jb20ACgkQwj2R86El/qjvFQf7Bh/Fe1U6e+9E3blAfiKYT4pI JwFMMv0dXKQOaoGZKCdcLmD7091mfMQ91BnIuQJ4o08nZzLmsiL7XlvqHPyvZoN9 5cCAm6r13jf0zpi97aFxxIgN94qRsUvVHxcgzD8sg3pkDRtvHwNeI+bHsVHM+yMH fVjVj4my7+uj3bqvZOZXgwEq9ZbAlC9Go5g1SFGFT8vytQojMzE0eAplU0xw8F+1 rmnmHP/CR57aroLjR90p8u0UXcTNvSBZrWwgO7dJy1bc05HEP22AtkcWG3Mluxt1 mELhEBzLn8735fY+iHrQ6tVHau9c0SdcMAJ64y62DQ3yE2cquzMB/LQt+27L4A== =LzRq -----END PGP SIGNATURE----- --b0IcZCRZLUWM2olXbPd03r70X3TNTxsB1--