The whole bug sounds similar to a problem we had on XFS back in the 2.6.16 time frame. Certain operations were delayed for hours meaning that it was possible fo

The whole bug sounds similar to a problem we had on XFS back in the 2.6.16 time frame. Certain operations were delayed for hours meaning that it was possible for renames/writes not to hit the platter if the machine experienced power loss instead of a clean shutdown, even if sync's were performed.