uvm_fault(fffffd8072c2ddd0,338c673f000,0,2) at uvm_fault+0x129 sys/uvm/uvm_fault.c:606
upageflttrap(ffff80002797b880,338c673f000) at upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:186
usertrap(ffff80002797b880) at usertrap+0x204 sys/arch/amd64/amd64/trap.c:438
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x33885e12080, count: -14
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(fffffd807a747818,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(fffffd807a747818,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105
rw_enter(fffffd807a747808,81) at rw_enter+0xd1 sys/kern/kern_rwlock.c:250
rrw_enter(fffffd807a747808,81) at rrw_enter+0x8b sys/kern/kern_rwlock.c:465
VOP_LOCK(fffffd8063b28b58,81) at VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
vn_lock(fffffd8063b28b58,81) at vn_lock+0x84 sys/kern/vfs_vnops.c:564
uvn_io(fffffd80670d1560,ffff800027ba1ae0,1,23,1) at uvn_io+0x31a sys/uvm/uvm_vnode.c:1263
uvn_put(fffffd80670d1560,ffff800027ba1ae0,1,23) at uvn_put+0xd0 sys/uvm/uvm_vnode.c:926
uvm_pager_put(fffffd80670d1560,fffffd80081f2720,ffff800027ba1b78,ffff800027ba1bb8,23,0,39285177ad1fcbf7) at uvm_pager_put+0x137 sys/uvm/uvm_pager.c:545
uvn_flush(fffffd80670d1560,0,2000,3) at uvn_flush+0x532 sys/uvm/uvm_vnode.c:725
uvm_map_clean(fffffd8072c2d1c8,20000000,20003000,3) at uvm_map_clean+0x71b sys/uvm/uvm_map.c:4704
syscall(ffff800027ba1db0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800027ba1db0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x28f3f5637b0, count: -13