From owner-freebsd-hackers@FreeBSD.ORG  Mon Jul  9 01:49:04 2012
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Date: Mon, 09 Jul 2012 09:49:04 +0800
From: David Xu <davidxu@freebsd.org>
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To: Chris Rees <utisoft@gmail.com>
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Cc: freebsd-hackers@freebsd.org, pho@freebsd.org
Subject: Re: port devel/doxygen failing to test on -CURRENT and -STABLE
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On 2012/07/08 18:21, Chris Rees wrote:
> Hi all / David,
>
> doxygen has been failing for a while now on -CURRENT and apparently
> -STABLE too.  The current fix is disabling one of the tests in the
> build, but obviously it points to a problem with our base system....
>
> I've trussed [1] the failing code [2], and it looks as though it's
> hanging on a _umtx call.  I'm gratuitously ignorant of what goes on
> there... but the timings of recent commits to umtx.h [3] could
> indicate a link (hope it's not bogus...).
>
> Any pointers on what I should do next?
>
> Chris
>
> [1] http://www.bayofrum.net/~crees/scratch/doxygen-truss
>
_umtx_op(0x8012b0280,0x16,0x0,0x0,0x0,0x1)	 ERR#22 'Invalid argument'

can you execute it in gdb and print its value ?

print/x *(int *)0x8012b0280
print/x *(int *)(0x8012b0280+4)


> [2] http://www.bayofrum.net/tb/index.php?action=display_markup_log&build=10-local&id=1037
>
> [3] http://svnweb.freebsd.org/base/head/sys/sys/umtx.h?view=log
>