panic: trap type 4, code=0, pc=ffffffff82ada05e
Starting stack trace...
panic(ffffffff832e1f1a) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80003c99b970) at kerntrap+0x28b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
lf_advlock(ffff800001520220,0,fffffd8061473708,8,ffff80003c99bb68,30) at lf_advlock+0x2ee ls_ref sys/kern/vfs_lockf.c:138 [inline]
lf_advlock(ffff800001520220,0,fffffd8061473708,8,ffff80003c99bb68,30) at lf_advlock+0x2ee sys/kern/vfs_lockf.c:278
VOP_ADVLOCK(fffffd805e9c7510,fffffd8061473708,8,ffff80003c99bb68,30) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:620
sys_flock(ffff80002a7bc2a8,ffff80003c99bcb0,ffff80003c99bc00) at sys_flock+0x291
syscall(ffff80003c99bcb0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x56863e430, count: 249
End of stack trace.