g_event spinning 100% when doing 'gpart add'

[mdf at FreeBSD.org]

On Fri, Sep 10, 2010 at 6:57 PM, Yuri Pankov <yuri.pankov at gmail.com> wrote:
> Nevermind me. That's what I thought why I was getting the same gpart behavior
> switching between kernels, with and without DEBUG_LOCKS. Sorry about that.
>
> Same here, gpart hangs on:
> 3826 gpart    CALL  __sysctl(0x7fffffffa250,0x3,0,0x7fffffffa268,0,0)
> 3826 gpart    SCTL  "kern.geom.confxml"

When I was doing my sbuf changes I temporarily had a patch to change
these sysctls to use the new drains.  I couldn't get any output from
the three kern.geom.conf{txt,dot,xml} sysctls (they didn't hang but
the output was empty) so I reverted those parts before committing.  I
doubt my changes affected this, but I will check on Monday when I'm
back at work to see if the lack of output is due to my changes or
predates me.

Cheers,
matthew