has anyone tried out softdep on the sparc?  i've twice now built a
kernel (from todays, and about 2 weeks's ago's sources) and when i
attempted to boot a kernel with `options SOFTDEP' (but nothing in
my filesystems changed!), it seems to reliably crash doing a chmod()
operation.  this happens on the first chmod that the chmod of pty's
in /etc/rc does on a typical boot, however, if i change this to be
"ktruss chmod ..." (so i see the syscalls as they happen), then it
does *not* crash.  it will, however, die later on a chmod that is
not being ptraced...

i do not have useful trace information on what was happening here..
i might build a kernel with UVM history enabled so i can see what
was happening recently...