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eth/downloader: ignore zero size header batch for importing #24569

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merged 2 commits into from
Mar 22, 2022

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rjl493456442
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@rjl493456442 rjl493456442 commented Mar 22, 2022

This PR fixes a panic by importing zero size header batch. It can happen when the imported headers are crossing the ttd border and all the synced headers are post-merge.

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@MariusVanDerWijden MariusVanDerWijden left a comment

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LGTM

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@holiman holiman left a comment

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LGTM, but we might want to also add an early return in ValidateHeaderChain. If chain is empty, return an error

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holiman commented Mar 22, 2022

TestSkeletonSyncRetrievals suffers from a spurious timing issue, and sometimes fails on appveyor.

@holiman holiman merged commit e0e8bf3 into ethereum:master Mar 22, 2022
sidhujag pushed a commit to syscoin/go-ethereum that referenced this pull request Mar 23, 2022
…#24569)

* eth/downloader: ignore zero size header batch for importing

* core, light: reject empty header batch for importing
JacekGlen pushed a commit to JacekGlen/go-ethereum that referenced this pull request May 26, 2022
…#24569)

* eth/downloader: ignore zero size header batch for importing

* core, light: reject empty header batch for importing
maoueh pushed a commit to streamingfast/go-ethereum that referenced this pull request Sep 30, 2022
…#24569)

* eth/downloader: ignore zero size header batch for importing

* core, light: reject empty header batch for importing
cp-wjhan pushed a commit to cp-yoonjin/go-wemix that referenced this pull request Nov 16, 2022
…#24569)

* eth/downloader: ignore zero size header batch for importing

* core, light: reject empty header batch for importing
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3 participants