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net: IBD leaves a header chain whose block fails consensus - #1112

Merged

reardencode merged 17 commits into

reardencode:masterfrom

smolcars:net/ibd-invalid-heavier

Oct 21, 2026

Merged

net: IBD leaves a header chain whose block fails consensus#1112
reardencode merged 17 commits into
reardencode:masterfrom
smolcars:net/ibd-invalid-heavier

Commits on Oct 21, 2026
- net: give the header peer a block no other peer has
  
  niteshbalusu11
  and
  claude
  committed
  b0d02ed
- net: retire an IBD header candidate whose block fails consensus
  
  niteshbalusu11
  and
  claude
  committed
  5a83f59
- net: keep a failed connect invalid across restart
  
  niteshbalusu11
  and
  claude
  committed
  18f00e9
- net: ask each IBD block peer for headers once
  
  niteshbalusu11
  and
  claude
  committed
  06d5961
- net: close the gaps review found in the IBD retire
  
  niteshbalusu11
  and
  claude
  committed
  4aaa1e2
- net: keep a peer's newest announced chain and settle its split
  
  niteshbalusu11
  and
  claude
  committed
  c6a8122
- net: a header peer that shows a block is kept from it only by one that does
  
  niteshbalusu11
  and
  claude
  committed
  8a6eaa2
- net: write a failure before the retired walk, and never show a left path
  
  niteshbalusu11
  and
  claude
  committed
  96c81a0
- net: save no walk while a failure is not on disk, and let a notfound expire
  
  niteshbalusu11
  and
  claude
  committed
  7e38500
- net: probe a peer from the confirmed tip, and rewind onto a fork below it
  
  niteshbalusu11
  and
  claude
  committed
  812f44c
- net: keep an open probe's lane, and keep a rewound peer on the chain it showed
  
  niteshbalusu11
  and
  claude
  committed
  490c446
- net: refuse only a linked header batch on a rejected block
  
  niteshbalusu11
  and
  claude
  committed
  a372775
- net: clear a peer's split once it builds on this chain above it
  
  niteshbalusu11
  and
  claude
  committed
  552a4b8
- net: resume a saved walk past stored failures below its base
  
  niteshbalusu11
  and
  claude
  committed
  07e3124
- net: wait on a block whose time is too far ahead instead of halting IBD
  
  niteshbalusu11
  and
  claude
  committed
  39ec677
- net: ask an IBD block peer only for blocks its chain showed
  
  niteshbalusu11
  and
  claude
  committed
  8bebe6d
- net: re-probe a peer whose record a rewind left stale
  
  niteshbalusu11
  and
  claude
  committed
  7be776a

Commits

Commits on Oct 21, 2026