panic: Bad list head 0xfffffe00007f8f00 first->prev != head cpuid = 0 time = 1 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00212ef6a0 vpanic() at vpanic+0x1e0/frame 0xfffffe00212ef700 panic() at panic+0x43/frame 0xfffffe00212ef760 sctp_inpcb_bind() at sctp_inpcb_bind+0x1151/frame 0xfffffe00212ef820 sctp_connect() at sctp_connect+0x266/frame 0xfffffe00212ef880 soconnectat() at soconnectat+0x183/frame 0xfffffe00212ef8e0 kern_connectat() at kern_connectat+0x1ff/frame 0xfffffe00212ef940 sys_connect() at sys_connect+0xd9/frame 0xfffffe00212ef980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe00212efab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00212efab0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x412e5a, rsp = 0x7fffdfffdf38, rbp = 0x3 --- KDB: enter: panic [ thread pid 24273 tid 100426 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why