Filesystem access from a KLD causes "vrele: negative ref cnt" panic

[Andrey Simonenko]

On Tue, Sep 20, 2005 at 07:49:53PM +0200, Sebastien wrote:
> 
> I have a random panic "vrele: negative ref cnt" when I shutdown the system. Am 
> I double-freeing something in my code ? The fact that the panic is caused 
> randomly suggests there is a synchronization problem - but the above code is 
> always running under the protection of the Giant mutex.

[ please don't write such long lines ]

Should not rootvnode get reference, when fd_rdir or fd_cdir
begins to point to it?  Try to VREF() it.  Which vnode gets negative
reference counter?