uvm_fault(fffffd806f5b7b78,e1ff007a000,0,1) at uvm_fault+0x64 counters_inc sys/sys/percpu.h:150 [inline]
uvm_fault(fffffd806f5b7b78,e1ff007a000,0,1) at uvm_fault+0x64 sys/uvm/uvm_fault.c:603
upageflttrap(ffff800033bb40d0,e1ff007acc8) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff800033bb40d0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x766506df0b10, count: -10
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(fffffd806c887d78,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806c887d60,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806c887d60,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd8064fa0a78,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffd8064fa0a78,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_getcwd_common(fffffd8064fa0a78,fffffd8064fa03b8,0,0,200,0,b14152deef8726e8) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287
vn_isunder(fffffd8064fa0a78,fffffd8064fa03b8,ffff80002a2662b8) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694
unp_externalize(fffffd8074b38f00,33,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090
soreceive(ffff800010fdcbd0,ffff80003c492d48,ffff80003c492cf8,0,ffff80003c492d30,ffff80003c492ebc,dd808a58ee1af205) at soreceive+0xc24 sys/kern/uipc_socket.c:1029
recvit(ffff80002a2662b8,5,ffff80003c492e90,0,ffff80003c492f40) at recvit+0x40b sys/kern/uipc_syscalls.c:1078
sys_recvmsg(ffff80002a2662b8,ffff80003c492ff0,ffff80003c492f40) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878
syscall(ffff80003c492ff0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c492ff0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b90ecded50, count: -14