panic: vm_page_swapqueue: page 0xfffffe00007a7c00 is unmanaged
cpuid = 0
time = 1569014753
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0019fdf510
vpanic() at vpanic+0x1e0/frame 0xfffffe0019fdf570
panic() at panic+0x43/frame 0xfffffe0019fdf5d0
vm_page_swapqueue() at vm_page_swapqueue+0x2b6/frame 0xfffffe0019fdf630
vm_pageout_worker() at vm_pageout_worker+0x1963/frame 0xfffffe0019fdfa20
vm_pageout() at vm_pageout+0x20e/frame 0xfffffe0019fdfa60
fork_exit() at fork_exit+0xb0/frame 0xfffffe0019fdfab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0019fdfab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 17 tid 100061 ]
Stopped at kdb_enter+0x6a: movq $0,kdb_why