locks under printf(9) and WITNESS = panic?

[John Baldwin]

On Saturday, June 29, 2013 9:19:24 pm Steven Hartland wrote:
> when booting stable/9 under a debug kernel with WITNESS
> enabled and verbose I get the following panic..
> 
> It seems very much like the discussion from a year back on
> current: http://lists.freebsd.org/pipermail/freebsd-current/2012-
January/031375.html
> 
> Any ideas?

Yeah, that lock needs to be MTX_RECURSE (the cnputs_mtx).  However, it
only recurses under witness.  *sigh*

-- 
John Baldwin