uvm_fault(fffffd806c9663e8,110c24e000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003a810ee0,110c24e3fb) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003a810ee0) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7de7999a7760, count: -17 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(fffffd806e849ef8,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e849ee0,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e849ee0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd80609f9de0,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 vn_lock(fffffd80609f9de0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c455630) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c455630) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fd8c30,fffffd806c4aa900,ffff80003c4a8d28) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800010fd8c30,fffffd806d718600,fffffd806c4aa900,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800010fd8c30,fffffd806c4aa900,ffff80003c4558b8,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c4a8d28,5,ffff80003c455a38,e,ffff80003c455af0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff80003c4a8d28,ffff80003c455ba0,ffff80003c455af0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c455ba0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c455ba0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x81116bb7080, count: -15