[LU-11583] unsupported incompat LMA feature(s) 0xffffffe1 Created: 29/Oct/18 Updated: 31/Oct/18 |
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| Status: | Reopened |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.10.5 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major |
| Reporter: | Mahmoud Hanafi | Assignee: | Dongyang Li |
| Resolution: | Unresolved | Votes: | 0 |
| Labels: | None | ||
| Issue Links: |
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| Severity: | 2 | ||||||||
| Rank (Obsolete): | 9223372036854775807 | ||||||||
| Description |
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During mounting mdt we see this error
[ 414.268802] Lustre: 9986:0:(osd_handler.c:371:osd_get_lma()) dm-1: unsupported incompat LMA feature(s) 0xffffffe1 for fid = [0x0:0x20af:0x2], ino = 153397641
what does it mean? |
| Comments |
| Comment by Peter Jones [ 30/Oct/18 ] |
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This seems likely related to |
| Comment by Andreas Dilger [ 30/Oct/18 ] |
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It looks like the "lma" xattr on the MDT for this inode is corrupted. Unfortunately, this isn't something that LFSCK can fix automatically, since the whole point of those flags is to prevent LFSCK from modifying inodes that have features it doesn't understand. Given that the inode doesn't have a proper Lustre FID either (which is itself stored in the LMA xattr), one option is to just delete this xattr from the MDT filesystem directly, by mounting it as type ldiskfs and then running "setfattr -x trusted.lma /mnt/XXX/ROOT/path/to/file". If the file itself has no useful data it could just be deleted entirely. |
| Comment by Mahmoud Hanafi [ 30/Oct/18 ] |
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close case. I removed the bad file. |
| Comment by Peter Jones [ 30/Oct/18 ] |
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ok - thanks |
| Comment by Andreas Dilger [ 31/Oct/18 ] |
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I'm going to reopen this issue to track fixing the "unsupported incompat LMA" issue, which is different from the "cannot precreate objects: rc = -116" issue in |