uvm_fault(fffffd806bf063a0,cceaf73f000,0,1) at uvm_fault+0x1ed sys/uvm/uvm_fault.c:622
upageflttrap(ffff8000371d0bd0,cceaf73f000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371d0bd0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x6fbde86b1130, count: -11
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:437
witness_checkorder(fffffd8076d263d0,9,0) at witness_checkorder+0x1047
rw_enter(fffffd8076d263c0,1) at rw_enter+0x122
rrw_enter(fffffd8076d263c0,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd806d651be8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
vn_lock(fffffd806d651be8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564
vfs_getcwd_common(fffffd806d651be8,fffffd806d651be8,0,0,200,0,b4e7a931e7322355) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287
vn_isunder(fffffd806d651be8,fffffd806d651be8,ffff8000ffff1468) at vn_isunder+0x56 sys/kern/vfs_vnops.c:688
unp_externalize(fffffd8062147400,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1094
soreceive(ffff8000012e6820,ffff80002a07c788,ffff80002a07c738,0,ffff80002a07c778,ffff80002a07c8fc,dcc4cec46f8df28d) at soreceive+0xd3e sys/kern/uipc_socket.c:1090
recvit(ffff8000ffff1468,5,ffff80002a07c8d0,0,ffff80002a07c980) at recvit+0x40a sys/kern/uipc_syscalls.c:1082
sys_recvmsg(ffff8000ffff1468,ffff80002a07ca30,ffff80002a07c980) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:882
syscall(ffff80002a07ca30) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline]
syscall(ffff80002a07ca30) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcce87a1f200, count: -14