I recently had the following panic on a 4.0/amd64 machine. Everything below has been manually typed in from photographs taken from the console screen. I don't have a dump.
kernel: protection fault trap, code=0 Stopped in pid 15.1 (pagedaemon) at netbsd:uvm_map_lookup_entry+0x1b: cmpq %rsi,0x40(%rax) db> show registers ds 0x8400 es 0x1068 fs 0x800 gs 0x1068 rdi 0xffff800007c70000 rsi 0xffff80000003000e rbp 0xffff800007c70000 rbx 0xffff800007c70000 rdx 0xffff80004e8cccd0 rcx 0xffff800007c70048 rax 0x3000e4c86f658 r8 0xffff80004e8ccd20 r9 0x2800000 r10 0 r11 0x1 r12 0xffff80000003000e r13 0xffff80000003000e r14 0x2800000 r15 0xffff80004e8ccd20 rip 0xffffffff8029d4bc uvm_map_lookup_entry+0x1b cs 0x8 rflags 0x10203 rsp 0xffff80004e8ccca8 ss 0 netbsd:uvm_map_lookup_entry+0x1b: cmpq %rsi,0x40(%rax) db> bt uvm_map_lookup_entry() at netbsd:uvm_map_lookup_entry+0x1b ?() at 0x3000e00000000 uvm_fault(0xffffffff896a5499, 0xffffffff00030000,1) -> e kernel: page fault trap, code=0 faultet in DDB; continuing... db>
