bug: pool gas limit issue

[greged93]

Bug Report

Current behavior:
When sending a transaction using eth_sendRawTransaction, some partners have received the following error message:

(error={ "code": -32603, "message": "[0x11b291e9cc554c29a88853988b474ace0902b7fd6ee02977d9406f820481ac9f]: transaction's gas limit 7000000 exceeds block's gas limit 10636872" }

We would expect the transaction to pass since 7000000 < 10636872.

Other information

The following document contain the parameters sent to the eth_sendRawTransaction endpoint: kakarot-error.txt.

Tasks

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1. Reproduce the issue
2. Reproduce the issue locally or in a unit test
3. Detail the reason why on the issue itself
4. Fix the issue

Duration: 4 hours

[tcoratger]

I investigated this issue in more detail:

• With the payload, was able to reproduce the error by sending the raw bytes to our RPC.
• I took the payload and put it in a JSON locally to try to make a unit test. I just made the following two changes in the pool validate for my test (because these two assertions are not at all related to the error):
  • I temporarily removed the test chain ID (when entering the mempool) because the chain ID provided by the payload (production chain ID) is not the one used in the tests so there is a mismatch
  • The user balance check because of course locally this address has no funds so it would have been necessary to fund it and I would have spent more time investigating for nothing because it was just a question of validating the eth_sendRawTransaction endpoint not the complete execution of the transaction.

So my best guess is that this issue is ultimately completely related to #1478 and because we don't prune the pool, the transactions remain and for some reason this produces a conflict leading to the mentioned error. cc @greged93 @eugypalu @ClementWalter