Is it actually frozen or is your computer just slow? ;-)  In any case your 
dtrace seems to be out of date. The new docbuilder uses the python 
multiprocessing module. Is your FreeBSD new enough to support that? Google 
search suggests that there were some semaphore problems up until a few 
years ago.

On Saturday, March 9, 2013 9:29:19 PM UTC-5, Stephen Montgomery-Smith wrote:
>
> So I ran the make process again.  After getting to the point of freezing, 
> using top, I could see that there were a couple of invocations of 
> python2.7.  FreeBSD uses truss in place of strace, and using "truss -p pid" 
> where pid was the pid of one of the invocations of python2.7, I could see 
> lines like this pouring out of truss:
>
> syscall(0x0,0x0,0x0,0x7fffffffc6c0,0x3fa99999,0x838541cc8) = 116 (0x74)
> -- UNKNOWN SYSCALL -14656 --
> syscall(0x0,0x0,0x0,0x7fffffffc6c0,0x3fa99999,0x838541cb0) = 116 (0x74)
> -- UNKNOWN SYSCALL -14656 --
> syscall(0x0,0x0,0x0,0x7fffffbfe430,0x3fb99999,0x801443e18) = 7 (0x7)
> -- UNKNOWN SYSCALL 22131 --
>
> I have no idea what this means.
>
> On 03/09/2013 06:44 PM, Volker Braun wrote:
> > can you strace/debug the process and see what its hanging at?
> >
> >
> > On Saturday, March 9, 2013 7:40:19 PM UTC-5, Stephen Montgomery-Smith 
> wrote:
> >
> >     Building on FreeBSD, the doc creation process freezes after this 
> point:
> >
> >     [history_a] loading pickled environment... not yet created
> >     [history_a] building [inventory]: targets for 1 source files that are
> >     out of date
> >     [history_a] updating environment: 1 added, 0 changed, 0 removed
> >     [history_a] reading sources... [100%] index
> >     [history_a] loading cross citations...
> >     [history_a] pickling environment... done
> >     [history_a] checking consistency... done
> >     [history_a] preparing documents... done
> >     [history_a] writing output... [100%] index
> >     [history_a] dumping object inventory... done
> >     [history_a] build succeeded.
> >
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