hammer snapshot blocks on high file system activity

[Matthew Dillon]

:Okay, I'm trying now with cpdup /usr /hammer/usr2 and a "cp 10GB-file
:/hammer" at the same time. But I'm having trouble to delete the
:/hammer/usr2 directory structure afterwards:
:
:   # rm -rf /hammer/usr2
:   /hammer/usr2/src/usr.bin/paste/paste.1 rename-after-copy failed: No 
:such file or directory
:   /hammer/usr2/src/usr.bin/paste/paste.c create (uid 0, euid 0) failed: 
:No such file or directory
:   rm: usr2/src/usr.bin: Directory not empty
:   rm: usr2/src: Directory not empty
:   rm: usr2/: Directory not empty

    There was some instability a few days ago, which was fixed in
    commit 60H on the evening of July 7th.  If your kernel is older then
    that you may have to update and newfs_hammer, then re-test.

    Hammer is still a bit of a moving target but I'm almost done with
    the mirroring code.

						-Matt