uvm_fault(0xfffffd806bcff200, 0x0, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff825f7ef0 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff800031bee040
gsbase 0xffff8000299ddff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff825f7ef0
Starting stack trace...
panic(ffffffff8332f2e5) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff800031bedf90) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dt_ioctl_record_stop(ffff80000147e000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579
dtclose(21e5f,81,2000,ffff80002a293498) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80002a293498) at dtclose+0x105 sys/dev/dt/dt_dev.c:232
spec_close(ffff800031bee140) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80673fe2e0,81,fffffd807f7d2618,ffff80002a293498) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8072b981b8,ffff80002a293498) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8072b981b8,ffff80002a293498) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8072b981b8,ffff80002a293498) at fdrop+0x126 sys/kern/kern_descrip.c:1265
closef(fffffd8072b981b8,ffff80002a293498) at closef+0x192 sys/kern/kern_descrip.c:1249
fdfree(ffff80002a293498) at fdfree+0x116 sys/kern/kern_descrip.c:1181
exit1(ffff80002a293498,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214
sys_exit(ffff80002a293498,ffff800031bee4b0,ffff800031bee400) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800031bee4b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800031bee4b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7630231f4c10, count: 242
End of stack trace.