fcntl always fails to delete lock file, and PID is always -6464

[Daichi GOTO]

It looks very strange. fcntl() always fails to delete lock file
and command.l_pid is always -6464. This issue is disclosed in 
porting Google's Japanese input system called "mozc".

  details follow:
    http://code.google.com/p/mozc/issues/detail?id=40

% uname -a
FreeBSD parancell.ongs.co.jp 9.0-CURRENT FreeBSD 9.0-CURRENT #6 r213257: Thu Sep 30 10:30:06 JST 2010     root at parancell.ongs.co.jp:/usr/obj/usr/src/sys/PARANCELL  amd64
% 

My home directory on NFS server.  Does anyone have any ideas?

-- 
Daichi GOTO
CEO | ONGS Inc.
81-42-316-7945 | daichi at ongs.co.jp | http://www.ongs.co.jp
LinkedIn: http://linkedin.com/in/daichigoto