uvm_fault(fffffd805bcd5d80,3fe61939000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700
upageflttrap(ffff80002a294a70,3fe61939000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a294a70) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7e936a0462a0, count: -13
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(fffffd806ea4d6e0,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806ea4d6c8,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806ea4d6c8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd805af258a8,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
vn_lock(fffffd805af258a8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_getcwd_common(fffffd805af258a8,fffffd80698898d0,0,0,200,0,78cf099801778fa0) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287
vn_isunder(fffffd805af258a8,fffffd80698898d0,ffff80002a3937b0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694
unp_externalize(fffffd805d924d00,33,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1090
soreceive(ffff800010fd8c60,ffff80002a3e10e8,ffff80002a3e1098,0,ffff80002a3e10d0,ffff80002a3e125c,d95e39b809f7005e) at soreceive+0xc24 sys/kern/uipc_socket.c:1009
recvit(ffff80002a3937b0,8,ffff80002a3e1230,0,ffff80002a3e12e0) at recvit+0x40b sys/kern/uipc_syscalls.c:1072
sys_recvmsg(ffff80002a3937b0,ffff80002a3e1390,ffff80002a3e12e0) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872
syscall(ffff80002a3e1390) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a3e1390) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xbef13587b00, count: -14