6439102 assertain failed: dmu_buf_refcount(dd->dd_dbuf) == 2 in dsl_dir_destroy_check()

[matthew.ahr...@sun.com]

Author: ahrens
Repository: /hg/onnv/onnv-gate
Revision: 8f3723cb41350fa814f5aa7c09b4aad1cc719582
Log message:
6439102 assertain failed: dmu_buf_refcount(dd->dd_dbuf) == 2 in 
dsl_dir_destroy_check()

Files:
        update: usr/src/uts/common/fs/zfs/dsl_dir.c