deadlock / lock error from filesystem code

[Michael Lorenz <macallan%netbsd.org@localhost>]

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Hello,

I keep running into this on macppc/smp:
panic: mutex_vector_exit: assertion failed MUTEX_OWNER(mtx- 
>mtx_owner) == curthread
coming from vget, cache_lookup, ufs_lookup, VOP_LOOKUP, lookup,  
namei, vn_open, sys_open.

Without DIAGNOSTIC I get occasional deadlocks instead, at least since  
4.99.55 - a 4.99.54 kernel works fine. Any lengthy build.sh will  
trigger it at some point. Sources are on Apple_UFS and OBJ, DEST etc.  
on ffsv2

Any ideas?

have fun
Michael
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