Lou Gosselin:
> How do I know which processes are locking a specific branch?
        :::
> # Any manipulation on the union results in locked file errors
>  > mount union -o remount,del:branch1
> mount: /tmp/union is busy

How about the "verbose" option?

(from the aufs manual)
----------------------------------------------------------------------
.B verbose | v
Print some information.
Currently, it is only busy file (or inode) at deleting a branch.
----------------------------------------------------------------------

If you enable AUFS_DEBUG and MAGIC_SYSRQ, then Magic SysRq + A will
print the all opened files.


J. R. Okajima

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