FreeBSD10-CURRENT r244480 hang while compiling lighttpd or any port

[Oleksandr Tymoshenko]

On 12/21/2012 12:00 AM, Alie Tan wrote:
> Hi,
>
> Anyone having hang issue while compiling any big port or portsnap fetch
> extract?
>
> Once hung, I cant SSH or press any key on keyboard anymore.
>

Do you have serial console? I saw several hangs and just pressing any 
key on serial
console fixed the hang - NFS session re-established and build continued. 
I think there
is some kind of problem with timer scheduling but haven't looked into it 
further yet.