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32016-03-22T00:33:29 <Chris_Stewart_5> I have a question about BIP66 and this test case inside of script_valid.json
42016-03-22T00:33:51 <Chris_Stewart_5> [
52016-03-22T00:33:53 <Chris_Stewart_5> "1",
62016-03-22T00:33:55 <Chris_Stewart_5> "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
72016-03-22T00:33:57 <Chris_Stewart_5> "",
82016-03-22T00:33:59 <Chris_Stewart_5> "BIP66 example 6, without DERSIG"
92016-03-22T00:34:01 <Chris_Stewart_5> ]
102016-03-22T00:34:21 <Chris_Stewart_5> BIP66 says that "if the signature does not pass the IsValidSignatureEncoding check below, the entire script evaluates to false immediately."
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122016-03-22T00:35:32 <Chris_Stewart_5> why would this script evaluate to true? Wouldn't it fail immediately after seeing "1" since it is not DER compliant
132016-03-22T00:35:50 <Chris_Stewart_5> shouldn't it just fail immediately
142016-03-22T00:35:52 <Chris_Stewart_5> ?
152016-03-22T00:37:35 <gmaxwell> Chris_Stewart_5: I assume because it is not run with the DERSIG flag. (as is the case for most of the blocks in the chain)
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172016-03-22T00:40:35 <Chris_Stewart_5> gmaxwell: So after BIP66 this would fail, pre BIP66 this would pass, correct?
182016-03-22T00:40:45 <Chris_Stewart_5> and this is indicated with the flags
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572016-03-22T04:08:46 <phantomcircuit> do i need a lock for Params() ?
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592016-03-22T04:18:35 <sipa> i'd say no
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652016-03-22T05:46:41 <phantomcircuit> sipa: what about CBlockIndex objects? I would assume yes but that they remain valid between lock acquisitions
662016-03-22T05:47:28 <phantomcircuit> (i mean pointers)
672016-03-22T05:58:59 <sipa> phantomcircuit: some fields are immutable
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692016-03-22T06:00:18 <sipa> if you take a CBlockIndex object from mapBlockIndex, its CBlockHeader fields, chainWork, pprev, ... are immutable
702016-03-22T06:00:27 <sipa> so you can use GetAncestor without lock
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722016-03-22T06:00:59 <sipa> nStatus, nFile, nBlockPos, nUndoPos, ... are mutable and need cs_main
732016-03-22T06:05:24 <phantomcircuit> sipa: just interested in whether a CBlockIndex pointed from mapBlockIndex will continue to work when passed to chainActive.Next
742016-03-22T06:11:23 <sipa> phantomcircuit: yes, it will
752016-03-22T06:11:40 <sipa> pointers to CBlockIndex remain vlaid forever
762016-03-22T06:12:04 <sipa> chainActive.Next will return NULL if the passed CBlockIndex is no longer in the main chaim
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852016-03-22T06:44:24 <sipa> phantomcircuit: i'm wrong
862016-03-22T06:44:35 <sipa> chainActive itself needs cs_main
872016-03-22T06:44:52 <sipa> though the CBlockIndex pointer do remain valid across different lockings
882016-03-22T06:45:11 <sipa> which may be enough
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922016-03-22T07:30:07 <jonasschnelli> Is there a chance to escape IBD in regtest (getheaders command reject with reason "node is in IBD)"?
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942016-03-22T07:34:26 <sipa> first mine a block?
952016-03-22T07:37:19 <jonasschnelli> :} ... let me try that... I didn't tried that because the IBD warning icon was also there in Qt after I mined couple of blocks...
962016-03-22T07:37:29 <sipa> hmm
972016-03-22T07:37:37 <jonasschnelli> (1min)
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992016-03-22T07:39:03 <jonasschnelli> sipa: thanks! Was my stupidity (of not mining a block)...
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1012016-03-22T07:46:58 <GitHub185> [bitcoin] jonasschnelli opened pull request #7732: [Qt] Debug window: replace "Build date" with "Datadir" (master...2016/03/qt_datadir) https://github.com/bitcoin/bitcoin/pull/7732
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