audio preview crash

[William Jon McCann <mccannwj pha jhu edu>]

Hi,

There is a problem with doing audio previews in burn:// 
<http://bugzilla.gnome.org/show_bug.cgi?id=312275>.  Though I think it 
is possible that it could cause problems in other places as well.

I have attached to that bug the most minimal workaround I could think 
of.  Does this make sense to commit before the release?  I suppose a 
real fix will have to wait until after the release and thaw.

As far as a real solution.  I'm not sure it is ever safe to use 
gnome-vfs in a forked thread without having something equivalent to 
pthread_atfork.

This problem didn't show up until now because we only started using an 
GIOChannel watch for monitor events in the 2.11 cycle.

What do you think?

Thanks,
Jon