xfs_repair in traversing filesystem

[Chris Walker]

Hello,

Our 35TB XFS filesystem developed some problems and was throwing these:

Filesystem "dm-0": Access to block zero in inode 160564555
start_block: 0 start_off: 0 blkcnt: 0 extent-state: 0 lastx: 451b

so we're running xfs_repair on this filesystem.  It finds this inode
and everything looks good, but then it hangs at

Phase 6 - check inode connectivity...
        - resetting contents of realtime bitmap and summary inodes
        - traversing filesystem ...

previous posts suggest running

xfs_repair -P -o bhash=1024

is this still the best way around this problem?  We're using the
latest xfsprogs (3.1.4).

Thanks very much,
Chris