uvm_fault(fffffd806be18568,765d203bd000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:605
upageflttrap(ffff8000371c2b60,765d203bd7e0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371c2b60) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x765d203bd810, 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:437
witness_checkorder(fffffd806e6794e8,9,0) at witness_checkorder+0x1047
rw_enter(fffffd806e6794d8,1) at rw_enter+0x122
rrw_enter(fffffd806e6794d8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd806bc22e68,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
vn_lock(fffffd806bc22e68,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564
vget(fffffd806bc22e68,2001) at vget+0x2bd sys/kern/vfs_subr.c:678
ktrwriteraw(ffff8000ffff31d8,fffffd806bc22e68,fffffd807f7d3820,ffff800034198640,ffff800034198620) at ktrwriteraw+0x172 sys/kern/kern_ktrace.c:679
ktrnamei(ffff8000ffff31d8,ffff800029fe7000) at ktrnamei+0x13a sys/kern/kern_ktrace.c:217
namei(ffff800034198778) at namei+0x2a2 sys/kern/vfs_lookup.c:170
unp_connect(ffff8000012f67f0,fffffd806cd56500,ffff8000ffff31d8) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868
uipc_dgram_send(ffff8000012f67f0,fffffd805ee54000,fffffd806cd56500,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607
sosend(ffff8000012f67f0,fffffd806cd56500,ffff800034198a08,0,0,0) at sosend+0xa40
sendit(ffff8000ffff31d8,3,ffff800034198b80,0,ffff800034198c40) at sendit+0x721 sys/kern/uipc_syscalls.c:786
sys_sendmsg(ffff8000ffff31d8,ffff800034198cf0,ffff800034198c40) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604
syscall(ffff800034198cf0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline]
syscall(ffff800034198cf0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70be45fba20, count: -17