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xfs_force_shutdown(md2,0x8) called from line 1091 of file fs/xfs/xfs_trans.c.  Return address = 0xc023c389
Filesystem "md2": Corruption of in-memory data detected.  Shutting down filesystem: md2
Please umount the filesystem, and rectify the problem(s)
xfs_force_shutdown(md2,0x1) called from line 353 of file fs/xfs/xfs_rw.c.  Return address = 0xc023c389
XFS mounting filesystem md2
Starting XFS recovery on filesystem: md2 (dev: md2)
Ending XFS recovery on filesystem: md2 (dev: md2)

>>> Unpacking source...
>>> Unpacking xfsprogs-2.7.11.src.tar.gz to /var/tmp/portage/xfsprogs-2.7.11/work
tar: xfsprogs-2.7.11/db/bmroot.h: Cannot open: Unknown error 990
tar: xfsprogs-2.7.11/db/bnobt.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/check.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/cntbt.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/command.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/convert.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/dbread.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/debug.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/dir.h: Cannot open: Input/output error
tar: xfsprogs-2.7.11/db/dir2.h: Cannot open: Input/output error