We are seeing a lot of warnings in our MDT logs:
May 28 19:24:13 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:14 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413065: comm mdt00_084: index 2: reach max htree level
2
May 28 19:24:14 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:14 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413066: comm mdt01_069: index 2: reach max htree level
2
May 28 19:24:14 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:15 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413065: comm mdt02_115: index 2: reach max htree level
2
May 28 19:24:15 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:17 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413066: comm mdt02_036: index 2: reach max htree level
2
May 28 19:24:17 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:21 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413066: comm mdt03_119: index 2: reach max htree level
2
May 28 19:24:21 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:21 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413061: comm mdt00_075: index 2: reach max htree level
2
May 28 19:24:21 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
May 28 19:24:25 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2624: inode 71413060: comm mdt03_106: index 2: reach max htree level
2
May 28 19:24:25 holyscratch01mds01 kernel: LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2628: Large directory feature is not enabled on this filesystem
 

I'm guessing this is related to a directory having too many files in it.  Is there a way to figure out which directory it is?  Can an inode number be correlated back to a filesystem path?

Paul Edmon