panic: uao_find_swhash_elt: can't allocate entry
Starting stack trace...
panic(ffffffff8331f270) at panic+0x1d0 sys/kern/subr_prf.c:229
uao_set_swslot(fffffd807894a708,dd270,bb42) at uao_set_swslot+0x443
uvmpd_scan_inactive(0,8bd6) at uvmpd_scan_inactive+0xfe1 sys/uvm/uvm_pdaemon.c:728
uvmpd_scan(0,8bd6,2) at uvmpd_scan+0x9f sys/uvm/uvm_pdaemon.c:925
uvm_pageout(ffff8000fffffc88) at uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305
end trace frame: 0x0, count: 252
End of stack trace.