panic: trap type 4, code=0, pc=ffffffff8247bf2a
Starting stack trace...
panic(ffffffff833ca244) at panic+464
kerntrap(ffff80002a322140) at kerntrap+779
alltraps_kern_meltdown() at alltraps_kern_meltdown+123
lf_advlock(ffff8000014916a0,0,ffff8000fffece80,2,ffff80002a322330,40) at lf_advlock+762
VOP_ADVLOCK(fffffd807e1ad980,ffff8000fffece80,2,ffff80002a322330,40) at VOP_ADVLOCK+135
closef(fffffd800b8b17e0,ffff800037be7ca8) at closef+320
fdfree(ffff800037be7ca8) at fdfree+278
exit1(ffff800037be7ca8,0,0,1) at exit1+1398
sys_exit(ffff800037be7ca8,ffff80002a322570,ffff80002a3224c0) at sys_exit+26
syscall(ffff80002a322570) at syscall+2839
Xsyscall() at Xsyscall+296
end of kernel
end trace frame: 0x719ba7328d30, count: 246
End of stack trace.