Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts. executing program login: panic: Can't clear local locks with F_UNLCKSYS cpuid = 1 time = 1552712050 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe001fa04520 vpanic() at vpanic+0x1e0/frame 0xfffffe001fa04580 panic() at panic+0x43/frame 0xfffffe001fa045e0 lf_advlockasync() at lf_advlockasync+0x14dd/frame 0xfffffe001fa046a0 lf_advlock() at lf_advlock+0x5e/frame 0xfffffe001fa04710 vop_stdadvlock() at vop_stdadvlock+0xf2/frame 0xfffffe001fa04810 VOP_ADVLOCK_APV() at VOP_ADVLOCK_APV+0xc5/frame 0xfffffe001fa04840 kern_fcntl() at kern_fcntl+0xfd1/frame 0xfffffe001fa048f0 kern_fcntl_freebsd() at kern_fcntl_freebsd+0x14f/frame 0xfffffe001fa04980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe001fa04ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe001fa04ab0 --- syscall (0, FreeBSD ELF64, nosys), rip = 0x41c31a, rsp = 0x7fffffffeae8, rbp = 0x7fffffffeb40 --- KDB: enter: panic [ thread pid 759 tid 100094 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why