debug_traceTransaction returns zero GAS for normal transfers

[oxbee]

Same problem is observed for debug_traceBlockByHash as well.

Complete example of a traces from a public XDC node:

curl https://xdc-mainnet.gateway.tatum.io -X POST   -H "Content-Type: application/json"   --data '{"method":"debug_traceTransaction","params":["0x8e28fefecd3eefde81786b1d96d541bc976df7ecf8b8e86e13f62a0925a581ff", {"tracer": "callTracer"}], "id":1,"jsonrpc":"2.0"}' | jq
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   399    0   234  100   165    958    676 --:--:-- --:--:-- --:--:--  1628
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "type": "CALL",
    "from": "0xde3fee1d954290f9f396ea1828667ad4a3461449",
    "to": "0x010a532191ad3acb94e725d43b8682ea1b29e969",
    "value": "0x16345785d8a0000",
    "gas": "0x0",
    "gasUsed": "0x0",
    "input": "0x",
    "output": "0x"
  }
}

Only happens for “normal” transfers, for TXs with “real” inner transaction the gas and gasfees are present on the trace endpoint:

curl https://xdc-mainnet.gateway.tatum.io -X POST   -H "Content-Type: application/json"   --data '{"method":"debug_traceTransaction","params":["0x883ce67959ddbbe46f21d952c15cbf77bd9ce38ea51dda2faea1d54c9de8b416", {"tracer": "callTracer"}], "id":1,"jsonrpc":"2.0"}' | jq
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1448    0  1283  100   165   7282    936 --:--:-- --:--:-- --:--:--  8227
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "type": "CALL",
    "from": "0x1ef33cebe891178f67fc8f4270a07940a333ca3a",
    "to": "0x6dcea39e68b2f4a3741ab1bac831d692fc1cf8b1",
    "value": "0x0",
    "gas": "0x68ab8",
    "gasUsed": "0x5693",
    "input": "0x70c10578",
    "output": "0x",
    "calls": [
      {
        "type": "STATICCALL",
        "from": "0x6dcea39e68b2f4a3741ab1bac831d692fc1cf8b1",
        "to": "0x32ee17a37bf65b067e0a10621430b5444661f0dd",
        "gas": "0x65c7a",
        "gasUsed": "0x3cac",
        "input": "0xf0bb5890",
        "output": "0x0000000000000000000000000000000000000000000000000000000000000000",
        "calls": [
          {
            "type": "STATICCALL",
            "from": "0x32ee17a37bf65b067e0a10621430b5444661f0dd",
            "to": "0xe3009e01a88323b6cbaa13367202c909cc825c69",
            "gas": "0x635a1",
            "gasUsed": "0x4c1",
            "input": "0x0902f1ac",
            "output": "0x00000000000000000000000000000000000000000000248cb488cb09a20c5cf80000000000000000000000000000000000000000000099e2495425ed59fd8c4c0000000000000000000000000000000000000000000000000000000068ee4bb2"
          },
          {
            "type": "STATICCALL",
            "from": "0x32ee17a37bf65b067e0a10621430b5444661f0dd",
            "to": "0xa604a16c50c075259f53deff19884d2de73126c8",
            "gas": "0x621d3",
            "gasUsed": "0x4c1",
            "input": "0x0902f1ac",
            "output": "0x0000000000000000000000000000000000000000000002769590905fbd5907aa000000000000000000000000000000000000000000000a5397998c825dc144810000000000000000000000000000000000000000000000000000000068ee4bb2"
          }
        ]
      }
    ]
  }
}

For ETH nodes the trace call do return GAS as expected:

curl https://ethereum-public.nodies.app  -X POST   -H "Content-Type: application/json"   --data '{"method":"debug_traceTransaction","params":["0x964ac4234b72354b01308460e021c29c13c08f8238862e42cdbd71a782575b44", {"tracer": "callTracer"}], "id":1,"jsonrpc":"2.0"}' | jq
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   389    0   224  100   165    138    102  0:00:01  0:00:01 --:--:--   240
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "from": "0x2a66c35ca79ccdf7473d931eb03090a54c1471fd",
    "gas": "0x5208",
    "gasUsed": "0x5208",
    "to": "0x18bf8631c5379f1c208e483caa9b2a33e071979f",
    "input": "0x",
    "value": "0x7d0e36a818000",
    "type": "CALL"
  }
}

[gzliudan]

I will look into this issue. The version v2.6.5-testnet has this bug, but the current dev-upgrade branch has no such bug.

[gzliudan]

This bug has been fixed by

• eth/tracers: fix gasUsed for native and JS tracers #26048 #1305: fix zero gasUsed
• eth/tracers: report correct gasLimit in call tracers #27029 #1325: fix zero gas

But unfortunately, these PRs are only included in the current dev-upgrade branch. The upcoming version also does not include these patches. Could you please setup an archive node with dev-upgrade branch ?

[oxbee]

@gzliudan thank you for the swift reply
for us it is not feasible to run dev branches in prod environment. as a means of a quick fix, we are querying the node for transaction receipts on zero gas transfers.

I do hope that you would schedule these fixes into one of the upcoming releases.