I have been having problems with SOFTDEP on arm32. Basically whenever any 
significant disk activity occurs the system hangs with the IDE disk light on. 
The system still responds to pings and I can break into the kernel debugger 
but no further disk activity occurs. When I do break into the kernel I get the 
error message:
Non-emulated page fault with intr_depth > 0

No stack backtrace is available at this point.

This failure occurs regardless of whether soft updates has been enabled on any 
file system or not.
This is with current supped 19/11/1999. A kernel with SOFTDEP disabled works 
fine. Also the SOFTDEP kernel functioned correctly until the current libc was 
activated after building the userland.

Mike