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

[Sebastien]

> [ please don't write such long lines ]

What's the correct line length ? I have at most 78 characters per line, which 
displays correcly on most terminals, doesn't it ?

> Should not rootvnode get reference, when fd_rdir or fd_cdir
> begins to point to it?  Try to VREF() it. 

No change.

> Which vnode gets negative reference counter?

I tell you ASAP (need to reboot...)