Consistent crash of BeagleBone kernel

[Konstantin Belousov]

On Mon, Aug 10, 2015 at 09:33:11PM -0700, Tim Kientzle wrote:
> I have a guess, though:  I noticed that the old bufwait/dirhash LOR is being triggered before this.  Could the backtrace from that be teaching Witness a bogus ufs -> kld ordering?

I do not see how it could.

The (directory) buffer lock is after the directory vnode lock, and both
of them should be after the kld_sx.  If some buffer lock appears before
kld_sx, this is the same problem as with the vnode lock.