uvm_fault(fffffd806b132ca0,e9cf1999000,0,1) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:691
upageflttrap(ffff80003c5e8c60,e9cf1999000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80003c5e8c60) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x71a94e4b2a20, 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:438
witness_checkorder(fffffd806affa3e8,9,0) at witness_checkorder+0x1047
rw_do_enter_write(fffffd806affa3d0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233
rrw_enter(fffffd806affa3d0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
VOP_LOCK(fffffd806a462c08,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
vn_lock(fffffd806a462c08,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_getcwd_common(fffffd806a462c08,fffffd806dcdfb00,0,0,200,0,c3101856bec722ae) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287
vn_isunder(fffffd806a462c08,fffffd806dcdfb00,ffff80003b8e5738) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694
unp_externalize(fffffd806a562400,33,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086
soreceive(ffff8000014412e0,ffff80003c59a0a8,ffff80003c59a058,0,ffff80003c59a098,ffff80003c59a21c,c3580b006c26888e) at soreceive+0xc73 sys/kern/uipc_socket.c:1021
recvit(ffff80003b8e5738,6,ffff80003c59a1f0,0,ffff80003c59a2a0) at recvit+0x40a sys/kern/uipc_syscalls.c:1072
sys_recvmsg(ffff80003b8e5738,ffff80003c59a350,ffff80003c59a2a0) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872
syscall(ffff80003c59a350) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c59a350) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x40710071b90, count: -14