hammer snapshot blocks on high file system activity

[Michael Neumann]

Hi,

I'm doing a "cpdup /usr/src /hammer/src" and a "hammer snapshot
/hammer/snap-%Y" at the same time. "hammer snapshot" takes as long as
"cpdup". Indeed, it does not return until the "cpdup" is completed.
I think it's a problem in "hammer sync". But taking a snapshot is
useless if one has to wait until no more file activity happens (which is
rarely the case on a server).
Regards,

  Michael