witness: lock_object uninitialized: 0xffff800000d4e028 Starting stack trace... witness_checkorder(ffff800000d4e028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000d4e028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000d4e018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d4e000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:95 [inline] unveil_delete_names(ffff800000d4e000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:105 unveil_destroy(ffff8000ffffa998) at unveil_destroy+0xad sys/kern/kern_unveil.c:186 exit1(ffff80002e3fd270,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff80002e3fd270,ffff80002e3f7f50,ffff80002e3f7fb0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff80002e3f8020) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3f8020) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcfad0, count: 249 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp