Greetings, this kernel was built with 'options DIAGNOSTIC' to help me 
see where things break, I got the following kernel panic on my Ultra10, 
has anyone seen this before? Any ideas where the problem is?

panic: ltsleep: l_stat 3 != LSONPROC
kdb breakpoint at 13ac280
Stopped in pid 107.4 (named) at netbsd:cpu_Debugger+0x4: nop

Below is the trace I wrote down:

ltsleep(1d63830, 204, 152aad8, 0, cbbbdf4, 41ec53ff) at netbsd:ltsleep+0x4e0
uvmfault_anonget(cdded50, 0, cbbbdf0, 181e800, e0018000, 1818800) at 
netbsd:uvmfault_anonget+0x284
uvm_fault(6, cdded90, 3, 1, 18b9400, cddecd0) at netbsd:uvm_fault+0xb54
data_access_fault(cddef80, 30, 100b1d0, 443fc67b, 11081f, 1823800) at 
netbsd:data_access_fault+0x2d4
?(cddc128, 443fdc20, 78, cddc000, 100b264, 0) at 0x1008e40
rwindow_save(443fdc20, 0, 0, ce8cc0d0, 0, 0) at netbsd:rwindow_save+0xcc
cpu_getmcontext(cdf0010, ce8c100, ce8c0c0, 247a9a0, 2000, 1) at 
netbsd:cpu_getmcontext+0x10
sa_upcall_getstate(ce8c0c0, cdf0010, deadbeef, 151d208, ce8c080, 
c81bb28) at netbsd:sa_upcall_getstate+0x10
sa_upcall0(ce8c080, 2, cdf0010, 0, 0, 0) at netbsd:sa_upcall0+0x98
sa_switch(cd6c270, cdc4000, 19d, 1522b40, 1, 0) at netbsd:sa_switch+0x24c
ltsleep(29a2d00, 11, 0, 0, 29a2d10, 41ec53ff) at netbsd:ltsleep+0x45c
biowait(29a2d00, 29a2d00, 0, 151d208, 0, 41ec53ff) at netbsd:biowait+0x3c
uvm_swap_io(0, 29a2d00, 18ca800, 100000, a47a000, 0) at 
netbsd:uvm_swap_io+0x4a4
uvm_swap_get(5, 1175, 1, 0, 0, 0) at netbsd:uvm_swap_get+0x58
uvmfault_anonget(cddfca0, 0, cbbbdf0, 181e8000, e0018000, 1818800) at 
netbsd:uvmfault_anonget+0xa14
uvm_fault(6, cddfce0, 3, 1, 18b9400, cddfc20) at netbsd:uvm_fault+0xb54
data_access_fault(cddfed0, 30, 41508208, 443fc67b, 800805, 1823800) at 
netbsd:data_access_fault+0x2d4
?(badcafe, badcafe, badcafe, badcafe, badcafe, badcafe) at 0x1008e40
emul_sunos32_object(ffffffffffffffff, ffffffffffffffff, 
ffffffffffffffff, ffffffffffffffff, ffffffffffffffff, ffffffffffffffff) 
at 0x41508410