Just a quick follow up to my last message:

Not long after I started re-make'ing libc, I got a number of

	uvn_flush: obj=0xc01c3300, offset=0xf000.  error during pageout.
	uvn_flush: WARNING: changes to page may be lost!

on the console.  These messages are not too encouraging to say the
least!  I think for now I might stay with an old VM-type kernel, and
leave the UVM stuff for when I have more time to look at things...

Simon.