panic: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk Starting stack trace... panic(ffffffff8307286b) at panic+0x1d0 sys/kern/subr_prf.c:229 witness_checkorder(ffffffff835c8598,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter_read(ffffffff835c8588) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe5a50,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe5a50,ffff800029fe5a88,ffff800029fe5ab0) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff835c84a8,7f825ab71000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5bf0,7f825ab71e98) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5bf0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd80084e4f60) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd80084e4f60) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2014 uvm_anfree_list(fffffd80784d1ee8,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd8070b20950) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5e20,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806c976c20) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806c976c20) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd9448) at reaper+0x246 sys/kern/kern_exit.c:480 end trace frame: 0x0, count: 241 End of stack trace.