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Update upstream fixtures to v7.0.0 beta.1 + fix consensus failures #1858

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veox
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@veox veox commented Oct 9, 2019

Squashed/rebased version moved to PR #1871.


What was wrong?

Upstream tests have released a new tagged version, v7.0.0-beta.1, which py-evm needs to support.

How was it fixed?

A lot of plumbing was fixed in PR #1852 by @voith: see his commits (first nine) and discussion in that PR.

I based this branch on that PR, fixing the remaining 2 cases of consensus failures. They're described in commit messages; in short, py-evm now walks the entire computation tree.

Closes #1852 as superseded.

Closes #1857 as fixed.

Extra: Istanbul block numbers are set for mainnet and Goerli. Ropsten already had it set.

To-Do

  • Clean up commit history (as much as I could; squashing further will obfuscate logic)

Cute Animal Picture

put a cute animal picture link inside the parentheses

Source: Valdemaras.N

@veox veox changed the title Update fixtures to v7.0.0 beta.1 rebased Update upstream fixtures to v7.0.0 beta.1 + fix consensus failures Oct 9, 2019
@veox veox force-pushed the update-fixtures-to-v7.0.0-beta.1-rebased branch from 7923369 to 3cd92a1 Compare October 9, 2019 14:16
@veox
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veox commented Oct 9, 2019

Github is displaying the commits in the wrong order after a rebase/force-push.

% git log --pretty=oneline --abbrev-commit
84b5bb78 misc: add "newsfragment".
aa81b705 tests: regenerate SLOWEST_TESTS.
3869a89e EIP-161 collect_touched_accounts(): remove computation.is_origin_computation when considering SELFDESTRUCT beneficiaries + refactor.
516a94e9 EIP-161 collect_touched_accounts(): clean up.
0457d814 EIP-161: don't collect if nested computation errored.
9d5ffd49 EIP-161 collect_touched_accounts(): relax to geth's level.
b7c9cdd2 fixtures: switch to tag v7.0.0-beta.1.
a5bdeaec mark some tests as incorrect
6a43adef Some fixtures do not have post state. Added a normalizer `normalize_post_stae` to handle this case. renamed existing method `normalize_post_state` to `normalize_post_state_hash`
807109b4 add istanbul blockchain tests to CI
c93ec1a5 mark randomStatetest94 as slow tests
a3244cda update gas for create_empty_contract
a1315d79 change ByzantiumToConstantinopleAt5 to ByzantiumToConstantinopleFixAt5
16a49ae6 add more gas for sstore_uint64 tests
090053d9 updated fixtures and handle case when postState is a string
fcce01c9 update upstream tests for Istanbul

@veox veox force-pushed the update-fixtures-to-v7.0.0-beta.1-rebased branch from 3cd92a1 to 84b5bb7 Compare October 10, 2019 13:56
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voith commented Oct 15, 2019

@veox Great work! 👍

@veox veox force-pushed the update-fixtures-to-v7.0.0-beta.1-rebased branch from 6e7aae7 to 332e4c5 Compare October 31, 2019 12:31
@veox veox force-pushed the update-fixtures-to-v7.0.0-beta.1-rebased branch from c729949 to eb8051f Compare November 4, 2019 13:20
voith and others added 16 commits November 4, 2019 15:21
…ost_stae` to handle this

case. renamed existing method `normalize_post_state` to `normalize_post_state_hash`
Since geth is now filling the tests, we have to do it like geth:

Walk the entire computation tree, including branches that errored
out (got REVERTed, OOGed, etc.), looking for wabbit RIPEMD160,
_always_ collecting it. Skip everything else on errored branches.

SQUASHED:

tests: fix import when DEBUG2 logging.

Logging utilities have moved to separate package, eth_utils.
In the general non-RIPEMD160 case, if the computation errored, it
would still be collected, because of the computation.is_origin_computation
condition.
Now that `computation.is_origin_computation` no longer needs to
be considered, it's fine to move the RIPEMD160 special-casing
back into the `if` clause, because the condition is the same.
…utation when considering SELFDESTRUCT beneficiaries + refactor.

`computation.is_origin_computation` has been present since the file was first introduced by @pipermerriam:

ethereum@69a8385#diff-28f7a9ef4182d19a95f4cccb1c073ef3

However, whether it's present or not has no effect on the tests passing.

(Possibly, this is due to the case not being covered in the tests...)

I can't find a place which explicitly states that beneficiary collection
should only be skipped if the error happened in the origin computation.

From the fact that having a `computation.is_origin_computation` in the
next if-clause (`if computation.msg.to != constants.CREATE_CONTRACT_ADDRESS`)
caused an error in a RevertPrecompiledTouchExactOOG test, it would seem
that upstream (geth v1.9.6) does not consider this a necessary condition.

Therefore, removing the condition here, too; and re-working the if-else
clauses to look like they did previously (moving the RIPEMD160 special-casing
as a sub-clause of the main clause).
Used these napkin-quality scripts:

https://gist.github.com/veox/02336c518f049cb749608657622d127f

SQUASHED:

tests: add Istanbul variants to existing SLOWEST_TESTS + CALLBlake2f_MaxRounds.

GeneralStateTests/stTimeConsuming/CALLBlake2f_MaxRounds.json takes an awful long
time - I was never able to run it fully.

Beyond that, file names for some previous slow tests have changed, losing a
`_dXgYvZ` qualifier.

Not all have been reviewed! Just enough for the BlockchainTests to run Istanbul
within half an hour on my workstation.

tests: mark `randomStatetest94` as slow for Istanbul, too.

Test passes, takes 22 seconds to run in py-evm (checked for Istanbul only),
and indeed causes a +3 GiB memory use peak on my workstation - similar to
`geth`, as reported here:

https://gitter.im/ethereum/tests?at=5d8c6d25b38cc849bf1402fe

(Not as time-consuming as some other tests, though.)
@veox veox force-pushed the update-fixtures-to-v7.0.0-beta.1-rebased branch from eb8051f to 2a641b7 Compare November 4, 2019 13:38
@veox veox force-pushed the update-fixtures-to-v7.0.0-beta.1-rebased branch from 2a641b7 to 3abcda8 Compare November 4, 2019 13:45
veox added 2 commits November 4, 2019 15:54
`towncrier --draft` shows that newsfragments in the `misc` category
don't get their contents displayed, they just get listed with a link in
the "Miscellaneous internal" section.

This is unacceptable! Move to `bugfix` section instead.
@carver
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carver commented Nov 5, 2019

Thanks to both of you!

I squashed a couple commits to have the history a bit cleaner (doing my best to retain commit history). The squashed version is here: #1871

I'll close this for now, to be merged by that squashed PR.

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Tracking: some upstream test fixtures fail when updating to v7.0.0-beta.1
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