panic: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk Starting stack trace... panic(ffffffff8307164b) at panic+0x1d0 sys/kern/subr_prf.c:229 witness_checkorder(ffffffff835518b8,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter_read(ffffffff835518a8) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe5730,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe5730,ffff800029fe5768,ffff800029fe5790) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff835517c8,7f84b88ca000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe58d0,7f84b88cabf8) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe58d0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd8008449100) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd8008449100) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2014 uvm_anfree_list(fffffd805e626d20,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806b579528) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5b00,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806ec28378) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806ec28378) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd96d0) at reaper+0x246 sys/kern/kern_exit.c:477 end trace frame: 0x0, count: 241 End of stack trace.