r248583 Kernel panic: negative refcount 0xfffffe0031b59168

[Konstantin Belousov]

On Sun, Jun 30, 2013 at 05:21:42PM +1000, Kubilay Kocak wrote:
> I'm seeing what I believe is related panic, reliably being generated by
> the Python regression test suite on a newly created FreeBSD 10-CURRENT
> buildbot.
> 
> Symptoms first seen in an freebsd.org FTP snapshot dated "Thu May 30
> 20:01:46 UTC 2013" and also reproducible on a freshly updated r252400
> 
> It is additionally reproducible after checking out pure upstream python
> sources, using the following steps:
> 
> hg clone http://hg.python.org/cpython
> cd cpython && configure && make buildbottest
> 
> An interesting possible correlation is that it seems to drop out
> during/around "test_socket"

Can you extract the autonomous test case, in C ?
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