login: panic: sx lock still held cpuid = 1 time = 1554550895 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00212f4750 vpanic() at vpanic+0x1e0/frame 0xfffffe00212f47b0 panic() at panic+0x43/frame 0xfffffe00212f4810 sx_destroy() at sx_destroy+0x5e/frame 0xfffffe00212f4830 solisten_proto() at solisten_proto+0xde/frame 0xfffffe00212f4890 sctp_listen() at sctp_listen+0x4eb/frame 0xfffffe00212f4900 solisten() at solisten+0x7a/frame 0xfffffe00212f4940 kern_listen() at kern_listen+0x132/frame 0xfffffe00212f4980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe00212f4ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00212f4ab0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x412f1a, rsp = 0x7fffdffbbf38, rbp = 0x2 --- KDB: enter: panic [ thread pid 1161 tid 101090 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why db>