[Lustre-discuss] 1.8.2 MDS nlink bug

Mark Nelson mark at msi.umn.edu
Mon Jan 3 13:11:06 PST 2011

Hi List,

I was wondering if any of you guys got hit by 

We are running 1.8.2 and over the holidays we had an MDS crash and saw 
the following show up a couple of times in our logs:

mds kernel: LustreError: 6295:0:(mds_reint.c:1772:mds_orphan_add_link()) 
ASSERTION(inode->i_nlink == 2) failed: dir nlink == 1

There was associated ext fs corruption and difficulty remounting the MDS 
without crashes.  I'm trying to verify that we are in fact running into 
22177 before declaring the case closed and ruling out other 
possibilities.  If you ran into this bug, does this sound like what you 

Mark Nelson, HPC Systems Administrator
Minnesota Supercomputing Institute
Phone: (612)626-4479
Email: mark at msi.umn.edu

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