possible race on HEAD?

[Matthew Dillon]

:
:I have similar problem:
:kernel from May 5 OK; May 9 (and newer) problem:
:doing quickworld (or buildworld) hangs within a few minutes; ctl-T shows 'clock' state.
:
:This happens when /usr/src and /usr/obj NFS mounted;
:when only /usr/src NFS mounted (/usr/obj UFS): no problem.
:
:When build proc. is hung: accessing UFS files works as expected;
:but proces accessing other NFS mounted file usually also hangs.
:
: -thomas

    Ok, I found it.  It's a bug in allocvnode() that can cause a deadlock
    to occur.  I'm working on a fix.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>