diff --git a/nimbus/evm/computation.nim b/nimbus/evm/computation.nim
index ad74967e92..f0cab51428 100644
--- a/nimbus/evm/computation.nim
+++ b/nimbus/evm/computation.nim
@@ -395,6 +395,9 @@ proc traceOpCodeStarted*(c: Computation, op: Op): int {.gcsafe, raises: [].} =
     c.gasMeter.gasRemaining,
     c.msg.depth + 1)
 
+proc traceCallFamilyGas*(c: Computation, op: Op, gas: GasInt) {.gcsafe, raises: [].} =
+  c.vmState.callFamilyGas(op, gas, c.msg.depth + 1)
+
 proc traceOpCodeEnded*(c: Computation, op: Op, opIndex: int) {.gcsafe, raises: [].} =
   c.vmState.captureOpEnd(
     c.code.pc - 1,
diff --git a/nimbus/evm/interpreter/op_handlers/oph_call.nim b/nimbus/evm/interpreter/op_handlers/oph_call.nim
index 918e408067..b3b8d71970 100644
--- a/nimbus/evm/interpreter/op_handlers/oph_call.nim
+++ b/nimbus/evm/interpreter/op_handlers/oph_call.nim
@@ -203,8 +203,11 @@ const
       raise newException(
         StaticContextError,
         "Cannot modify state while inside of a STATICCALL context")
-    
-    let p = cpt.callParams
+
+    let
+      gasAtStart = cpt.gasMeter.gasRemaining
+      p = cpt.callParams
+
     cpt.asyncChainTo(ifNecessaryGetAccounts(cpt.vmState, @[p.sender])):
       cpt.asyncChainTo(ifNecessaryGetCodeForAccounts(cpt.vmState, @[p.contractAddress, p.codeAddress])):
         var (gasCost, childGasLimit) = cpt.gasCosts[Call].c_handler(
@@ -238,6 +241,9 @@ const
           raise newException(
             OutOfGas, "Gas not enough to perform calculation (call)")
 
+        gasCost = gasAtStart - cpt.gasMeter.gasRemaining
+        cpt.traceCallFamilyGas(Call, gasCost)
+
         cpt.memory.extend(p.memInPos, p.memInLen)
         cpt.memory.extend(p.memOutPos, p.memOutLen)
 
@@ -287,6 +293,7 @@ const
     ## 0xf2, Message-call into this account with an alternative account's code.
     let
       cpt = k.cpt
+      gasAtStart = cpt.gasMeter.gasRemaining
       p = cpt.callCodeParams
 
     cpt.asyncChainTo(ifNecessaryGetAccounts(cpt.vmState, @[p.sender])):
@@ -325,6 +332,9 @@ const
           raise newException(
             OutOfGas, "Gas not enough to perform calculation (callCode)")
 
+        gasCost = gasAtStart - cpt.gasMeter.gasRemaining
+        cpt.traceCallFamilyGas(CallCode, gasCost)
+
         cpt.memory.extend(p.memInPos, p.memInLen)
         cpt.memory.extend(p.memOutPos, p.memOutLen)
 
@@ -375,6 +385,7 @@ const
     ##       code, but persisting the current values for sender and value.
     let
       cpt = k.cpt
+      gasAtStart = cpt.gasMeter.gasRemaining
       p = cpt.delegateCallParams
 
     cpt.asyncChainTo(ifNecessaryGetAccounts(cpt.vmState, @[p.sender])):
@@ -409,6 +420,9 @@ const
           raise newException(
             OutOfGas, "Gas not enough to perform calculation (delegateCall)")
 
+        gasCost = gasAtStart - cpt.gasMeter.gasRemaining
+        cpt.traceCallFamilyGas(DelegateCall, gasCost)
+
         cpt.memory.extend(p.memInPos, p.memInLen)
         cpt.memory.extend(p.memOutPos, p.memOutLen)
 
@@ -451,6 +465,7 @@ const
 
     let
       cpt = k.cpt
+      gasAtStart = cpt.gasMeter.gasRemaining
       p = cpt.staticCallParams
 
     cpt.asyncChainTo(ifNecessaryGetAccounts(cpt.vmState, @[p.sender])):
@@ -490,6 +505,9 @@ const
           raise newException(
             OutOfGas, "Gas not enough to perform calculation (staticCall)")
 
+        gasCost = gasAtStart - cpt.gasMeter.gasRemaining
+        cpt.traceCallFamilyGas(StaticCall, gasCost)
+
         cpt.memory.extend(p.memInPos, p.memInLen)
         cpt.memory.extend(p.memOutPos, p.memOutLen)
 
diff --git a/nimbus/evm/interpreter/op_handlers/oph_create.nim b/nimbus/evm/interpreter/op_handlers/oph_create.nim
index e57a7e8880..394016a8a1 100644
--- a/nimbus/evm/interpreter/op_handlers/oph_create.nim
+++ b/nimbus/evm/interpreter/op_handlers/oph_create.nim
@@ -99,11 +99,13 @@ const
       raise newException(InitcodeError,
         &"CREATE: have {memLen}, max {EIP3860_MAX_INITCODE_SIZE}")
 
-    let gasParams = GasParams(
-      kind:              Create,
-      cr_currentMemSize: k.cpt.memory.len,
-      cr_memOffset:      memPos,
-      cr_memLength:      memLen)
+    let
+      gasAtStart = k.cpt.gasMeter.gasRemaining
+      gasParams = GasParams(
+        kind:              Create,
+        cr_currentMemSize: k.cpt.memory.len,
+        cr_memOffset:      memPos,
+        cr_memLength:      memLen)
 
     var gasCost = k.cpt.gasCosts[Create].c_handler(1.u256, gasParams).gasCost
     k.cpt.gasMeter.consumeGas(
@@ -132,6 +134,9 @@ const
       createMsgGas -= createMsgGas div 64
     k.cpt.gasMeter.consumeGas(createMsgGas, reason = "CREATE")
 
+    gasCost = gasAtStart - k.cpt.gasMeter.gasRemaining
+    k.cpt.traceCallFamilyGas(Create, gasCost)
+
     when evmc_enabled:
       let
         msg = new(nimbus_message)
@@ -177,11 +182,13 @@ const
       raise newException(InitcodeError,
         &"CREATE2: have {memLen}, max {EIP3860_MAX_INITCODE_SIZE}")
 
-    let gasParams = GasParams(
-      kind:              Create,
-      cr_currentMemSize: k.cpt.memory.len,
-      cr_memOffset:      memPos,
-      cr_memLength:      memLen)
+    let
+      gasAtStart = k.cpt.gasMeter.gasRemaining
+      gasParams = GasParams(
+        kind:              Create,
+        cr_currentMemSize: k.cpt.memory.len,
+        cr_memOffset:      memPos,
+        cr_memLength:      memLen)
 
     var gasCost = k.cpt.gasCosts[Create].c_handler(1.u256, gasParams).gasCost
     gasCost = gasCost + k.cpt.gasCosts[Create2].m_handler(0, 0, memLen)
@@ -212,6 +219,9 @@ const
       createMsgGas -= createMsgGas div 64
     k.cpt.gasMeter.consumeGas(createMsgGas, reason = "CREATE2")
 
+    gasCost = gasAtStart - k.cpt.gasMeter.gasRemaining
+    k.cpt.traceCallFamilyGas(Create2, gasCost)
+
     when evmc_enabled:
       let
         msg = new(nimbus_message)
diff --git a/nimbus/evm/interpreter_dispatch.nim b/nimbus/evm/interpreter_dispatch.nim
index af20b1e9ae..52a958504a 100644
--- a/nimbus/evm/interpreter_dispatch.nim
+++ b/nimbus/evm/interpreter_dispatch.nim
@@ -257,8 +257,8 @@ proc executeOpcodes*(c: Computation, shouldPrepareTracer: bool = true)
     except CatchableError as e:
       let
         msg = e.msg
-        depth = $c.msg.depth
-      c.setError("Opcode Dispatch Error msg=" & msg & ", depth=" & depth, true)
+        depth = $(c.msg.depth + 1) # plus one to match tracer depth, and avoid confusion
+      c.setError("Opcode Dispatch Error: " & msg & ", depth=" & depth, true)
 
   if c.isError() and c.continuation.isNil:
     if c.tracingEnabled: c.traceError()
diff --git a/nimbus/evm/stack.nim b/nimbus/evm/stack.nim
index 08e8de5950..6543b6fca3 100644
--- a/nimbus/evm/stack.nim
+++ b/nimbus/evm/stack.nim
@@ -58,7 +58,7 @@ proc ensurePop(elements: Stack, a: int) =
   let expected = a
   if num < expected:
     raise newException(InsufficientStack,
-      &"Stack underflow: expected {expected} elements, got {num} instead.")
+      &"Stack underflow, expect {expected}, got {num}")
 
 proc popAux[T](stack: var Stack, value: var T) =
   ensurePop(stack, 1)
@@ -103,7 +103,7 @@ proc swap*(stack: var Stack, position: int) =
     (stack.values[^1], stack.values[^idx]) = (stack.values[^idx], stack.values[^1])
   else:
     raise newException(InsufficientStack,
-                      &"Insufficient stack items for SWAP{position}")
+                      "Stack underflow for SWAP" & $position)
 
 template getInt(x: int): int = x
 
@@ -114,7 +114,7 @@ proc dup*(stack: var Stack, position: int | UInt256) =
     stack.push(stack.values[^position])
   else:
     raise newException(InsufficientStack,
-                      &"Insufficient stack items for DUP{position}")
+                      "Stack underflow for DUP" & $position)
 
 proc peek*(stack: Stack): UInt256 =
   # This should be used only for testing purposes!
diff --git a/nimbus/evm/state.nim b/nimbus/evm/state.nim
index def246f3b2..6458f42406 100644
--- a/nimbus/evm/state.nim
+++ b/nimbus/evm/state.nim
@@ -393,6 +393,12 @@ proc captureOpStart*(vmState: BaseVMState, pc: int,
   if vmState.tracingEnabled:
     result = vmState.tracer.captureOpStart(pc, op, gas, depth)
 
+proc callFamilyGas*(vmState: BaseVMState,
+                    op: Op, gas: GasInt,
+                    depth: int) =
+  if vmState.tracingEnabled:          
+    vmState.tracer.callFamilyGas(op, gas, depth)
+                      
 proc captureOpEnd*(vmState: BaseVMState, pc: int,
                    op: Op, gas: GasInt, refund: GasInt,
                    rData: openArray[byte],
diff --git a/nimbus/evm/tracer/json_tracer.nim b/nimbus/evm/tracer/json_tracer.nim
index be860a8700..7b1dff8de0 100644
--- a/nimbus/evm/tracer/json_tracer.nim
+++ b/nimbus/evm/tracer/json_tracer.nim
@@ -29,6 +29,17 @@ type
     stack: JsonNode
     storageKeys: seq[HashSet[UInt256]]
     index: int
+    callFamilyNode: JsonNode
+
+const
+  callFamily = [
+    Create,
+    Create2,
+    Call,
+    CallCode,
+    DelegateCall,
+    StaticCall,
+  ]
 
 template stripLeadingZeros(value: string): string =
   var cidx = 0
@@ -41,7 +52,10 @@ proc encodeHexInt(x: SomeInteger): JsonNode =
   %("0x" & x.toHex.stripLeadingZeros.toLowerAscii)
 
 proc `%`(x: openArray[byte]): JsonNode =
-  %("0x" & x.toHex)
+  if x.len == 0:
+    %("")
+  else:
+    %("0x" & x.toHex)
 
 proc writeJson(ctx: JsonTracer, res: JsonNode) =
   try:
@@ -113,7 +127,10 @@ proc captureOpImpl(ctx: JsonTracer, pc: int,
   if error.isSome:
     res["error"] = %(error.get)
 
-  ctx.writeJson(res)
+  if op in callFamily:
+    ctx.callFamilyNode = res
+  else:
+    ctx.writeJson(res)
 
 proc newJsonTracer*(stream: Stream, flags: set[TracerFlags], pretty: bool): JsonTracer =
   JsonTracer(
@@ -171,13 +188,34 @@ method captureOpStart*(ctx: JsonTracer, pc: int,
     except ValueError as ex:
       error "JsonTracer captureOpStart", msg=ex.msg
 
+  if op in callFamily:
+    try:
+      ctx.captureOpImpl(pc, op, 0, 0, [], depth, none(string))
+    except RlpError as ex:
+      error "JsonTracer captureOpEnd", msg=ex.msg
+
+  # make sure captureOpEnd get the right opIndex
   result = ctx.index
   inc ctx.index
 
+method callFamilyGas*(ctx: JsonTracer,
+                      op: Op, gas: GasInt,
+                      depth: int) {.gcsafe.} =
+  doAssert(op in callFamily)
+  doAssert(ctx.callFamilyNode.isNil.not)
+  let res = ctx.callFamilyNode
+  res["gasCost"] = encodeHexInt(gas)
+  ctx.writeJson(res)
+
 method captureOpEnd*(ctx: JsonTracer, pc: int,
                      op: Op, gas: GasInt, refund: GasInt,
                      rData: openArray[byte],
                      depth: int, opIndex: int) {.gcsafe.} =
+
+  if op in callFamily:
+    # call family opcode is processed in captureOpStart
+    return
+
   try:
     ctx.captureOpImpl(pc, op, gas, refund, rData, depth, none(string))
   except RlpError as ex:
diff --git a/nimbus/evm/types.nim b/nimbus/evm/types.nim
index 041075d0e3..f822513812 100644
--- a/nimbus/evm/types.nim
+++ b/nimbus/evm/types.nim
@@ -173,6 +173,11 @@ method captureOpStart*(ctx: TracerRef, pc: int,
                        depth: int): int {.base, gcsafe.} =
   discard
 
+method callFamilyGas*(ctx: TracerRef,
+                      op: Op, gas: GasInt,
+                      depth: int) {.base, gcsafe.} =
+  discard
+
 method captureOpEnd*(ctx: TracerRef, pc: int,
                      op: Op, gas: GasInt, refund: GasInt,
                      rData: openArray[byte],
@@ -188,4 +193,3 @@ method captureFault*(ctx: TracerRef, pc: int,
 
 method capturePrepare*(ctx: TracerRef, depth: int) {.base, gcsafe.} =
   discard
-
diff --git a/nimbus/vm_state.nim b/nimbus/vm_state.nim
index 1bf9a52448..3d12211dca 100644
--- a/nimbus/vm_state.nim
+++ b/nimbus/vm_state.nim
@@ -43,6 +43,7 @@ export
   vms.captureEnter,
   vms.captureExit,
   vms.captureOpStart,
+  vms.callFamilyGas,
   vms.captureOpEnd,
   vms.captureFault,
   vms.capturePrepare
diff --git a/tests/fixtures/TracerTests/block46402.json b/tests/fixtures/TracerTests/block46402.json
index 06ee8ce705..c57749ac98 100644
--- a/tests/fixtures/TracerTests/block46402.json
+++ b/tests/fixtures/TracerTests/block46402.json
@@ -283,7 +283,7 @@
             "0000000000000000000000000000000000000000000000000000000000000000",
             "0000000000000000000000000000000000000000000000000000000000000060"
           ],
-          "error": "Opcode Dispatch Error msg=Out of gas: Needed 20000 - Remaining 412 - Reason: SSTORE, depth=0",
+          "error": "Opcode Dispatch Error: Out of gas: Needed 20000 - Remaining 412 - Reason: SSTORE, depth=1",
           "gasCost": 0
         }
       ],
@@ -705,7 +705,7 @@
           "0000000000000000000000000000000000000000000000000000000000000000",
           "0000000000000000000000000000000000000000000000000000000000000060"
         ],
-        "error": "Opcode Dispatch Error msg=Out of gas: Needed 20000 - Remaining 412 - Reason: SSTORE, depth=0",
+        "error": "Opcode Dispatch Error: Out of gas: Needed 20000 - Remaining 412 - Reason: SSTORE, depth=1",
         "gasCost": 0
       }
     ]
diff --git a/tools/t8n/helpers.nim b/tools/t8n/helpers.nim
index 2af9ed9c08..7eb82eafd4 100644
--- a/tools/t8n/helpers.nim
+++ b/tools/t8n/helpers.nim
@@ -212,9 +212,6 @@ proc parseTx(n: JsonNode, chainId: ChainID): Transaction =
   required(tx, GasInt, gas)
   required(tx, UInt256, value)
   required(tx, Blob, input)
-  required(tx, int64, v)
-  required(tx, UInt256, r)
-  required(tx, UInt256, s)
 
   if n.hasKey("to"):
     tx.to = some(EthAddress.fromJson(n, "to"))
@@ -248,6 +245,9 @@ proc parseTx(n: JsonNode, chainId: ChainID): Transaction =
     let secretKey = PrivateKey.fromRaw(data).tryGet
     signTransaction(tx, secretKey, chainId, eip155)
   else:
+    required(tx, int64, v)
+    required(tx, UInt256, r)
+    required(tx, UInt256, s)
     tx
 
 proc parseTxLegacy(item: var Rlp): Result[Transaction, string] =
diff --git a/tools/t8n/t8n_test.nim b/tools/t8n/t8n_test.nim
index 6f958fbd6e..1d9f0dd0bb 100644
--- a/tools/t8n/t8n_test.nim
+++ b/tools/t8n/t8n_test.nim
@@ -498,7 +498,7 @@ const
       expOut: "exp.json",
     ),
     TestSpec(
-      name  : "EVM tracer crash bug",
+      name  : "EVM tracer nil stack crash bug",
       base  : "testdata/00-519",
       input : t8nInput(
         "alloc.json", "txs.json", "env.json", "Shanghai", "0",
@@ -506,6 +506,15 @@ const
       output: T8nOutput(trace: true),
       expOut: "exp.txt",
     ),
+    TestSpec(
+      name  : "EVM tracer wrong order for CALL family opcodes",
+      base  : "testdata/00-520",
+      input : t8nInput(
+        "alloc.json", "txs.json", "env.json", "Merge", "0",
+      ),
+      output: T8nOutput(trace: true, result: true),
+      expOut: "exp.txt",
+    ),
   ]
 
 proc main() =
diff --git a/tools/t8n/testdata/00-519/exp.txt b/tools/t8n/testdata/00-519/exp.txt
index d19b3514b5..18a4ff01ba 100644
--- a/tools/t8n/testdata/00-519/exp.txt
+++ b/tools/t8n/testdata/00-519/exp.txt
@@ -1,2 +1,2 @@
 {"pc":0,"op":0,"gas":"0x0","gasCost":"0xfffffffffffecb68","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"STOP","error":"Blake2b F function invalid input"}
-{"output":"0x","gasUsed":"0x13498","error":"Blake2b F function invalid input"}
+{"output":"","gasUsed":"0x13498","error":"Blake2b F function invalid input"}
diff --git a/tools/t8n/testdata/00-520/alloc.json b/tools/t8n/testdata/00-520/alloc.json
new file mode 100644
index 0000000000..5018908f7a
--- /dev/null
+++ b/tools/t8n/testdata/00-520/alloc.json
@@ -0,0 +1,237 @@
+{
+  "0x0000000000000000000000000000000000000000": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000001": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000002": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000003": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000004": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000005": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000006": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000007": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000008": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x0000000000000000000000000000000000000009": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x000000000000000000000000000000000000000a": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x000000000000000000000000000000000000000b": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x000000000000000000000000000000000000000c": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x000000000000000000000000000000000000000d": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x000000000000000000000000000000000000000e": {
+    "balance": "0x1",
+    "code": "0x",
+    "nonce": "0x0",
+    "storage": {
+    }
+  },
+  "0x00000000000000000000000000000000000000f1": {
+    "balance": "0x0",
+    "code": "0x6000600060006000600060f35af15098871a1232658c60206000f3",
+    "nonce": "0x0",
+    "storage": {
+      "0x0000000000000000000000000000000000000000000000000000000000000002": "0x0000000000000000000000000000000000000000000000000000000000000007",
+      "0x0000000000000000000000000000000000000000000000000000000000000004": "0x0000000000000000000000000000000000000000000000000000000000000005",
+      "0x0000000000000000000000000000000000000000000000000000000000000005": "0x000000000000000000000000000000000000000000000000000000000000000f",
+      "0x0000000000000000000000000000000000000000000000000000000000000007": "0x0000000000000000000000000000000000000000000000000000000000000004",
+      "0x0000000000000000000000000000000000000000000000000000000000000008": "0x0000000000000000000000000000000000000000000000000000000000000005",
+      "0x0000000000000000000000000000000000000000000000000000000000000009": "0x0000000000000000000000000000000000000000000000000000000000000012",
+      "0x000000000000000000000000000000000000000000000000000000000000000a": "0x0000000000000000000000000000000000000000000000000000000000000002"
+    }
+  },
+  "0x00000000000000000000000000000000000000f2": {
+    "balance": "0x0",
+    "code": "0x2060206000f3",
+    "nonce": "0x0",
+    "storage": {
+      "0x0000000000000000000000000000000000000000000000000000000000000001": "0x000000000000000000000000000000000000000000000000000000000000000e",
+      "0x0000000000000000000000000000000000000000000000000000000000000002": "0x0000000000000000000000000000000000000000000000000000000000000002"
+    }
+  },
+  "0x00000000000000000000000000000000000000f3": {
+    "balance": "0x0",
+    "code": "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",
+    "nonce": "0x0",
+    "storage": {
+      "0x0000000000000000000000000000000000000000000000000000000000000000": "0x0000000000000000000000000000000000000000000000000000000000000010"
+    }
+  },
+  "0x00000000000000000000000000000000000000f4": {
+    "balance": "0x0",
+    "code": "0x60206000fd",
+    "nonce": "0x0",
+    "storage": {
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+}
diff --git a/tools/t8n/testdata/00-520/env.json b/tools/t8n/testdata/00-520/env.json
new file mode 100644
index 0000000000..757baa1d61
--- /dev/null
+++ b/tools/t8n/testdata/00-520/env.json
@@ -0,0 +1,9 @@
+{
+  "currentBaseFee": "0x10",
+  "currentCoinbase": "b94f5374fce5edbc8e2a8697c15331677e6ebf0b",
+  "currentGasLimit": "0x26e1f476fe1e22",
+  "currentNumber": "0x1",
+  "currentTimestamp": "0x3e8",
+  "currentRandom": "0x0000000000000000000000000000000000000000000000000000000000020000",
+  "currentDifficulty": "0x0",
+}
diff --git a/tools/t8n/testdata/00-520/exp.txt b/tools/t8n/testdata/00-520/exp.txt
new file mode 100644
index 0000000000..80c82bc4fd
--- /dev/null
+++ b/tools/t8n/testdata/00-520/exp.txt
@@ -0,0 +1,12 @@
+{"pc":0,"op":96,"gas":"0x79bf88","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH1"}
+{"pc":2,"op":96,"gas":"0x79bf85","gasCost":"0x3","memSize":0,"stack":["0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
+{"pc":4,"op":96,"gas":"0x79bf82","gasCost":"0x3","memSize":0,"stack":["0x0","0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
+{"pc":6,"op":96,"gas":"0x79bf7f","gasCost":"0x3","memSize":0,"stack":["0x0","0x0","0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
+{"pc":8,"op":96,"gas":"0x79bf7c","gasCost":"0x3","memSize":0,"stack":["0x0","0x0","0x0","0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
+{"pc":10,"op":96,"gas":"0x79bf79","gasCost":"0x3","memSize":0,"stack":["0x0","0x0","0x0","0x0","0x0"],"depth":1,"refund":0,"opName":"PUSH1"}
+{"pc":12,"op":90,"gas":"0x79bf76","gasCost":"0x2","memSize":0,"stack":["0x0","0x0","0x0","0x0","0x0","0xf3"],"depth":1,"refund":0,"opName":"GAS"}
+{"pc":13,"op":241,"gas":"0x79bf74","gasCost":"0x77d89f","memSize":0,"stack":["0x0","0x0","0x0","0x0","0x0","0xf3","0x79bf74"],"depth":1,"refund":0,"opName":"CALL"}
+{"pc":0,"op":11,"gas":"0x77ce77","gasCost":"0x5","memSize":0,"stack":["0x0"],"depth":2,"refund":0,"opName":"SIGNEXTEND","error":"Opcode Dispatch Error: Stack underflow, expect 2, got 0, depth=2"}
+{"pc":14,"op":80,"gas":"0x1e6d5","gasCost":"0x2","memSize":0,"stack":["0x0"],"depth":1,"refund":0,"opName":"POP"}
+{"pc":15,"op":152,"gas":"0x1e6d3","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"SWAP9","error":"Opcode Dispatch Error: Stack underflow for SWAP9, depth=1"}
+{"output":"","gasUsed":"0x79bf88","error":"Opcode Dispatch Error: Stack underflow for SWAP9, depth=1"}
diff --git a/tools/t8n/testdata/00-520/txs.json b/tools/t8n/testdata/00-520/txs.json
new file mode 100644
index 0000000000..ba5458bf20
--- /dev/null
+++ b/tools/t8n/testdata/00-520/txs.json
@@ -0,0 +1,14 @@
+[
+  {
+     "type": "0x0",
+     "chainId": "0x1",
+     "nonce": "0x0",
+     "gasPrice": "0x10",
+     "gas": "0x7a1200",
+     "to": "0x00000000000000000000000000000000000000f1",
+     "value": "0x54afed",
+     "input": "0xf9ddd3baf78a80",
+     "secretKey": "0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8",
+     "sender": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
+  }
+]