uvm_fault(fffffd806eef0b78,b6a6d562000,0,2) at uvm_fault+0x159 sys/uvm/uvm_fault.c:638
upageflttrap(ffff80003bffc9d0,b6a6d562b86) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003bffc9d0) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7e7b9e1042f0, 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(fffffd8066bd7208,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd8066bd71f0,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd8066bd71f0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd80626dfdb8,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
vn_lock(fffffd80626dfdb8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_getcwd_common(fffffd80626dfdb8,fffffd80626df8a8,0,0,200,0,4bfd8027026fc2e) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287
vn_isunder(fffffd80626dfdb8,fffffd80626df8a8,ffff8000fffe94e0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694
unp_externalize(fffffd806d19ad00,f0,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090
soreceive(ffff800010fc4ef8,ffff80003c448fd8,ffff80003c448f88,0,ffff80003c448fc0,ffff80003c44914c,692b74f7fe32051d) at soreceive+0xc24 sys/kern/uipc_socket.c:1009
recvit(ffff8000fffe94e0,5,ffff80003c449120,0,ffff80003c4491d0) at recvit+0x40b sys/kern/uipc_syscalls.c:1078
sys_recvmsg(ffff8000fffe94e0,ffff80003c449280,ffff80003c4491d0) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878
syscall(ffff80003c449280) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c449280) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3410ce01130, count: -14