Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts.
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Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x18
fault code		= supervisor read data  , page not present
instruction pointer	= 0x20:0xffffffff812c3df7
stack pointer	        = 0x28:0xfffffe0016ac58c0
frame pointer	        = 0x28:0xfffffe0016ac5900
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 0 (softirq_0)
trap number		= 12
panic: page fault
cpuid = 0
time = 1557289015
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0016ac5520
vpanic() at vpanic+0x1e0/frame 0xfffffe0016ac5580
panic() at panic+0x43/frame 0xfffffe0016ac55e0
trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe0016ac5660
trap_pfault() at trap_pfault+0x9f/frame 0xfffffe0016ac56d0
trap() at trap+0x44d/frame 0xfffffe0016ac57f0
calltrap() at calltrap+0x8/frame 0xfffffe0016ac57f0
--- trap 0xc, rip = 0xffffffff812c3df7, rsp = 0xfffffe0016ac58c0, rbp = 0xfffffe0016ac5900 ---
inp_freemoptions() at inp_freemoptions+0x177/frame 0xfffffe0016ac5900
in_pcbfree_deferred() at in_pcbfree_deferred+0x224/frame 0xfffffe0016ac5960
epoch_call_task() at epoch_call_task+0x262/frame 0xfffffe0016ac59c0
gtaskqueue_run_locked() at gtaskqueue_run_locked+0x13e/frame 0xfffffe0016ac5a20
gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0xdd/frame 0xfffffe0016ac5a60
fork_exit() at fork_exit+0xb0/frame 0xfffffe0016ac5ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0016ac5ab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 0 tid 100014 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why