Partial io

[trufae]

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Description

[condret]

ideally, io would fix the maps and then restart the operation. kinda like this;

if (broken map detected) {
  collect_all_broken_maps;
  fix_maps_by resizing_deleting;
  return r_io_bank_<read/write>_at;
}

[trufae]

Closing, as there are conflicts and the root bug was fixed already. Thanks!