This happens to me that my computer forces qt to exit because my disk is running out of memory

Should we skip syncing or check and show warning beforehand  when disk size available is enough for syncing all blocks?

Also wondering how large free disks should I prepare for syncing all the blocks?
onion_proxy = addrProxy;
    }
    const bool onlynet_used_with_onion{args.IsArgSet("-onlynet") && IsReachable(NET_ONION)};
     
     
     
    std::string onionArg = args.GetArg("-onion", "");
    if (onionArg != "") {
        if (onionArg == "0") {  
            onion_proxy = Proxy{};
            if (onlynet_used_with_onion) {
                return InitError(
                    _("Outbound connections restricted to Tor (-onlynet=onion) but the proxy for "
                      "reaching the Tor network is explicitly forbidden: -onion=0"));
            }
        } else {
            CService addr;
            if (!Lookup(onionArg, addr, 9050, fNameLookup) || !addr.IsValid()) {
                return InitError(strprintf(_("Invalid -onion address or hostname: '%s'"), onionArg));
            }
            onion_proxy = Proxy{addr, proxyRandomize};
        }
    }
    if (onion_proxy.IsValid()) {
        SetProxy(NET_ONION, onion_proxy);
    } else {
         
         
        const bool listenonion_disabled{!args.GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION)};
        if (onlynet_used_with_onion && listenonion_disabled) {