uvm_fault(0xffffffff825590d0, 0xffff800000b8b000, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      uvm_unmap_remove+0x3eb: movq    0x100(%r15),%r15
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel page fault
uvm_fault(0xffffffff825590d0, 0xffff800000b8b000, 0, 1) -> e
uvm_unmap_remove(ffff800000b8af00,0,200000,ffff80001590faf8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline]
uvm_unmap_remove(ffff800000b8af00,0,200000,ffff80001590faf8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217
end trace frame: 0xffff80001590fb30, count: 0
ddb> trace
uvm_unmap_remove(ffff800000b8af00,0,200000,ffff80001590faf8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline]
uvm_unmap_remove(ffff800000b8af00,0,200000,ffff80001590faf8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217
uvm_map_deallocate(ffff800000b8af00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233
vm_teardown(ffff800016b3aa28) at vm_teardown+0x1a0 sys/arch/amd64/amd64/vmm.c:3436
vm_terminate(ffff80001590fdb0) at vm_terminate+0x23f sys/arch/amd64/amd64/vmm.c:3823
VOP_IOCTL(fffffd803b4949c0,80045604,ffff80001590fdb0,1,fffffd803f7c6780,ffff8000ffff2018) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd803622d968,80045604,ffff80001590fdb0,ffff8000ffff2018) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
sys_ioctl(ffff8000ffff2018,ffff80001590fec8,ffff80001590ff10) at sys_ioctl+0x5b9
syscall(ffff80001590ff90) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff58,0,3,ba71e968010) at Xsyscall+0x128
end of kernel
end trace frame: 0xbaa16361680, count: -9
ddb> show registers
rdi                                0
rsi                                0
rbp               0xffff80001590fae0
rbx                                0
rdx                            0x26e
rcx               0xffff800017b4d000
rax               0xffff800000b8af00
r8                               0x1
r9                                 0
r10               0x5262fecc3a69204d
r11                0xf468ee013398f2c
r12                                0
r13               0xfffffd802e4ccc78
r14                          0x10000    __ALIGN_SIZE+0xf000
r15               0xffff800000b8af00
rip               0xffffffff81cd154b    uvm_unmap_remove+0x3eb
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff80001590fa30
ss                              0x10
uvm_unmap_remove+0x3eb: movq    0x100(%r15),%r15
ddb> serialport: VM disconnected.