Details
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Bug
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Resolution: Not a Bug
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Major
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None
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None
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None
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3
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9223372036854775807
Description
Some customer reported that some directory has problem that the entry '..' is not present:
pwd; stat .; ls -la /lustre/home/i200/mjf-i200/work/HYDRA_nodotdot File: '.' Size: 4096 Blocks: 8 IO Block: 4096 directory Device: b40e0b0h/188801200d Inode: 216173336164617001 Links: 2 Access: (0750/drwxr-x---) Uid: (29114/mjf-i200) Gid: (20002/ i200) Access: 2017-04-17 10:50:59.000000000 +0100 Modify: 2017-04-17 10:49:07.000000000 +0100 Change: 2017-04-17 10:50:48.000000000 +0100 Birth: - total 4 drwxr-x--- 2 mjf-i200 i200 4096 Apr 17 10:49 .
Checking in the MDT, it seems to be there:
[root@cirrus-mds1 ~]# debugfs -cR 'ls -l ROOT/home/i200/mjf-i200/work/HYDRA_nodotdot/' /dev/mapper/vg_mdt0000_indy2lfs-mdt0000 debugfs 1.42.13.wc5.ddn1 (15-Apr-2016) /dev/mapper/vg_mdt0000_indy2lfs-mdt0000: catastrophic mode - not reading inode or group bitmaps 244739512 40750 (2) 29114 20002 4096 17-Apr-2017 23:38 . 244739468 40750 (2) 29114 20002 4096 19-Apr-2017 10:10 ..
[root@cirrus-mds1 ~]# debugfs -cR 'stat ROOT/home/i200/mjf-i200/work/HYDRA_nodotdot/' /dev/mapper/vg_mdt0000_indy2lfs-mdt0000 debugfs 1.42.13.wc5.ddn1 (15-Apr-2016) /dev/mapper/vg_mdt0000_indy2lfs-mdt0000: catastrophic mode - not reading inode or group bitmaps Inode: 244739512 Type: directory Mode: 0750 Flags: 0x0 Generation: 1458826816 Version: 0x00000027:1d3fe408 User: 29114 Group: 20002 Project: 0 Size: 4096 File ACL: 0 Directory ACL: 0 Links: 2 Blockcount: 8 Fragment: Address: 0 Number: 0 Size: 0 ctime: 0x58f54401:00000000 -- Mon Apr 17 23:38:57 2017 atime: 0x58f9d240:00000000 -- Fri Apr 21 10:34:56 2017 mtime: 0x58f54401:00000000 -- Mon Apr 17 23:38:57 2017 crtime: 0x58d10bbd:6e447984 -- Tue Mar 21 11:17:17 2017 Size of extra inode fields: 32 Extended attributes stored in inode body: lma = "00 00 00 00 00 00 00 00 00 81 00 00 03 00 00 00 29 cb 00 00 00 00 00 00 " (24) lma: fid=[0x300008100:0xcb29:0x0] compat=0 incompat=0 link = "df f1 ea 11 01 00 00 00 38 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 03 00 00 81 00 00 01 8d 14 00 00 00 00 48 59 44 52 41 5f 6e 6f 64 6f 74 64 6f 74 " (56) BLOCKS: (0):122441712 TOTAL: 1
Looking at the parent directory with debugfs:
[root@cirrus-mds1 ~]# debugfs -cR 'ls -l ROOT/home/i200/mjf-i200/work/' /dev/mapper/vg_mdt0000_indy2lfs-mdt0000 debugfs 1.42.13.wc5.ddn1 (15-Apr-2016) /dev/mapper/vg_mdt0000_indy2lfs-mdt0000: catastrophic mode - not reading inode or group bitmaps 244739468 40750 (2) 29114 20002 4096 19-Apr-2017 10:10 . 236208657 40750 (18) 29114 20002 4096 20-Apr-2017 18:15 .. 244739512 40750 (18) 29114 20002 4096 17-Apr-2017 23:38 HYDRA_nodotdot 254185195 40750 (18) 29114 20002 4096 17-Apr-2017 23:37 HYDRA_dotdot