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Fixes randomStatetest643 exception #235

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merged 2 commits into from
Nov 25, 2017

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hugo-dc
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@hugo-dc hugo-dc commented Nov 22, 2017

Current exception in randomStatetest is because an assertion in the bn.js module, it checks that the number to be added is less than 0x4000000

https://github.com/indutny/bn.js/blob/master/lib/bn.js#L2129

These changes checks returnFee, if its greater than gasLimit set it as gasLimit + 1, this avoids BN assertion failure when returnFee is bigger than 0x4000000 and ending as an OOG exception as expected.

Closes #195

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jwasinger commented Nov 23, 2017

Thanks for the fix. Pls change this line (https://github.com/ethereumjs/ethereumjs-vm/blob/master/tests/tester.js#L16) as well so that the test is run. then rebase against master, and I will approve.

@hugo-dc hugo-dc force-pushed the fix-huge-return-fee branch from 73b156d to 919b5d0 Compare November 25, 2017 01:38
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hugo-dc commented Nov 25, 2017

@jwasinger , removed test from skipped tests and rebased against master.

@jwasinger jwasinger merged commit c7a14fe into ethereumjs:master Nov 25, 2017
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Thanks


// avoid BN assertion failure when returnFee is greater than 0x4000000
if (returnFee > gasLimit.toNumber()) {
returnFee = gasLimit.toNumber() + 1
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Should this instead emit an "internal error" here? It would be more straightfoward as this one is causing an OOG below, but it is not clear without reading the next if.

@axic axic self-assigned this Feb 13, 2018
holgerd77 added a commit that referenced this pull request Mar 11, 2021
Add basic API tests for re-exports
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randomStatetest643 is broken
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