Just got this on my 1.4ZA 5900/60 (r4400):

	trap: r4k trap/r3k reserved 13 in kernel mode
	status=0x47c03, cause=0x134, epc=0xc003d6c0, vaddr=0x47c43
	pid=2546 cmd=cc usp=0x7fffad80 ksp=0xc6faf840
	Stopped in cc at        0xc003d6c0:     tge     v0,v0,zero
	db> trap: address error (load or I-fetch) in kernel mode
	status=0x40803, cause=0x10000b10, epc=0x40803, vaddr=0x40803
	pid=2546 cmd=cc usp=0x7fffad80 ksp=0xc6fae138
	Stopped in cc at       0x40803:

At the first "db>" prompt, I typed a letter 't' and got the remaining
text straight away.  The cursor stopped at the last ':' and now isn't
responding to a <BREAK>...

Simon.