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 142018-02-10T00:47:01  <ossifrage> I just started up a master bitcoin-qt built a few hours ago and the column widths fro the debug window peers tab seems broken
 152018-02-10T00:48:14  <ossifrage> I can't resize the columns and the default widths are strange (wide NodeId column, narrow node/service column)
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 172018-02-10T00:52:48  <fanquake> cfields what are your thoughts/plans re qt upgrade?
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 192018-02-10T00:54:48  <fanquake> There is #12316 open, but I dont think the bump is going to be that trivial.
 202018-02-10T00:54:49  <gribble> https://github.com/bitcoin/bitcoin/issues/12316 | Upgrade depends/build system to use Qt 5.9.4 by thijstriemstra · Pull Request #12316 · bitcoin/bitcoin · GitHub
 212018-02-10T00:55:30  <fanquake> Also wether we are going to bump sdk & clang at the same time.
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 272018-02-10T01:13:42  <Randolf> I wonder if someone could take a quick look at PR 12393 at https://github.com/bitcoin/bitcoin/pull/12393 for me.  The committer - practicalswift - indicated that they implemented a change that I suggested, but that change isn't appearing for me.  Am I missing something, or is there something else
 282018-02-10T01:14:30  <Randolf> that the committer needs to do?  Thanks.
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 302018-02-10T01:19:06  <fanquake> Randolf The change is not on GitHub yet. practicalswift may have forgotten to push the changes after fixing.
 312018-02-10T01:20:05  <Randolf> Okay.  Thanks.
 322018-02-10T01:20:14  <Randolf> I'll let them know.
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 412018-02-10T02:11:53  <bitcoin-git> [bitcoin] fanquake opened pull request #12402: [depends] expat 2.2.5, ccache 3.3.6, miniupnpc 2.0.20180203 (master...depends-02-2018) https://github.com/bitcoin/bitcoin/pull/12402
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 762018-02-10T03:24:39  <fanquake> Can someone confirm for me that 90dda8c7563ca6cd4a83e23b3c66dbbea89603a1675bfdb852897c2c9cc220b7 is the correct sha256sum for http://miniupnp.free.fr/files/miniupnpc-2.0.20180203.tar.gz
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 842018-02-10T03:31:29  <mlz> $ sha256sum miniupnpc-2.0.20180203.tar.gz
 852018-02-10T03:31:29  <mlz> 90dda8c7563ca6cd4a83e23b3c66dbbea89603a1675bfdb852897c2c9cc220b7  miniupnpc-2.0.20180203.tar.gz
 862018-02-10T03:32:18  <mlz> looks matching, fanquake
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 882018-02-10T03:35:09  <fanquake> thanks mlz
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1182018-02-10T04:15:34  <ProfMac> I've been grepping for nExtraNonce and reading source.  I can't seem to comprehend where it is in the data structure source.
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2122018-02-10T08:06:48  <bitcoin-git> [bitcoin] zablonbaraka85 opened pull request #12403: Updatecoin miner.cpp (master...patch-1) https://github.com/bitcoin/bitcoin/pull/12403
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2172018-02-10T08:15:44  <bitcoin-git> [bitcoin] fanquake closed pull request #12403: Updatecoin miner.cpp (master...patch-1) https://github.com/bitcoin/bitcoin/pull/12403
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2462018-02-10T10:51:49  <provoostenator> Can someone answer my new questions at #12401? I need a little bit more context to understand my own bugfix :-) I can update the PR based on that feedback.
2472018-02-10T10:51:50  <gribble> https://github.com/bitcoin/bitcoin/issues/12401 | Reset pblocktree before deleting LevelDB file by Sjors · Pull Request #12401 · bitcoin/bitcoin · GitHub
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2632018-02-10T11:38:02  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/89005ddad1c4...948c29cc0d2d
2642018-02-10T11:38:02  <bitcoin-git> bitcoin/master 1687cb4 Jorge Timón: Refactor: One CBaseChainParams should be enough
2652018-02-10T11:38:03  <bitcoin-git> bitcoin/master 948c29c Wladimir J. van der Laan: Merge #12128: Refactor: One CBaseChainParams should be enough...
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2672018-02-10T11:38:51  <bitcoin-git> [bitcoin] laanwj closed pull request #12128: Refactor: One CBaseChainParams should be enough (master...b16-baseparams-nohierarchy) https://github.com/bitcoin/bitcoin/pull/12128
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3002018-02-10T13:50:46  <bitcoin-git> [bitcoin] Sjors opened pull request #12404: Prune more aggressively during IBD (master...2018/02/ibd_prune_extra) https://github.com/bitcoin/bitcoin/pull/12404
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3042018-02-10T14:15:15  <bitcoin-git> [bitcoin] MarcoFalke opened pull request #12405: travis: Full clone for git subtree check (master...Mf1802-travisSubtree) https://github.com/bitcoin/bitcoin/pull/12405
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3112018-02-10T14:50:11  <bitcoin-git> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/948c29cc0d2d...fe53d5f3636a
3122018-02-10T14:50:11  <bitcoin-git> bitcoin/master 464015f Sjors Provoost: [scripts] gitian-builder.sh: fix --setup doc, LXC is default
3132018-02-10T14:50:12  <bitcoin-git> bitcoin/master fe53d5f MarcoFalke: Merge #12394: gitian-builder.sh: fix --setup doc, since lxc is default...
3142018-02-10T14:50:53  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #12396: [Doc] Fix typo (0.16...0.16) https://github.com/bitcoin/bitcoin/pull/12396
3152018-02-10T14:51:03  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #12394: gitian-builder.sh: fix --setup doc, since lxc is default (master...2018/02/gitian-build-setup-lxc) https://github.com/bitcoin/bitcoin/pull/12394
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3872018-02-10T17:39:23  <provoostenator> michagogo: regarding Ubuntu inside of Windows and scary instructions. I'm currently trying to upgrade a fresh install to 18.04 and then see if I can compile Bitcoin
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3892018-02-10T17:40:06  <provoostenator> If that works, I'll make a PR to point out that possibility.
3902018-02-10T17:46:27  <jamesob_> is latestblock in rpc/blockchain.cpp supposed to correspond to the latest block on *any* chain, or on activeChain?
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3942018-02-10T18:03:19  <michagogo> provoostenator: Hm, does do-release-upgrade actually do anything?
3952018-02-10T18:04:00  <michagogo> IIRC even upgrading 14.04-16.04 isn't supported, advice is to delete the environment and start fresh
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4002018-02-10T18:41:33  <provoostenator> michagogo do-release-upgrade -d
4012018-02-10T18:42:26  <provoostenator> Probably not recommended of course. I just got a crash somewhere during the upgrade. We'll see...
4022018-02-10T18:43:20  <provoostenator> Windows 10 uses 16.04, so that was my starting point.
4032018-02-10T18:43:46  <provoostenator> And that in turn is running in a Virtual Box on my iMac, because: must go deeper:
4042018-02-10T18:45:11  <arubi> what kernel is running in windows' linux subsystem?  not linux right?
4052018-02-10T18:45:57  <arubi> oh it's not.  reading the wiki now..
4062018-02-10T18:46:02  <sipa> "a linux-compatible kernel interface"
4072018-02-10T18:46:45  *** CubicEarths has quit IRC
4082018-02-10T18:47:19  <arubi> yea..  how exotic :)
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4122018-02-10T18:52:40  <provoostenator> https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1748659
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4142018-02-10T18:53:57  *** DrFeelGood has quit IRC
4152018-02-10T18:54:15  <provoostenator> Their bug filing flow is pretty nice... It generates a report, uploads a bunch of stuff to some temporary place and gives you a short URL to open in a browser with most of the bug report filled out...
4162018-02-10T18:55:10  *** laurentmt has quit IRC
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4212018-02-10T19:11:18  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #12120: Add dev guideline limiting auto usage. (master...2018-01-auto-devnotes) https://github.com/bitcoin/bitcoin/pull/12120
4222018-02-10T19:25:59  *** promag has joined #bitcoin-core-dev
4232018-02-10T19:28:44  <provoostenator> locales are always screwed up on the Windows 10 Ubuntu, this tends to help: sudo gunzip /usr/share/i18n/charmaps/UTF-8.gz
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4302018-02-10T19:41:47  <bitcoin-git> [bitcoin] jamesob opened pull request #12407: Ensure nStatus is set properly for all invalid blocks (master...jamesob/2018-02-mark-headers-invalid) https://github.com/bitcoin/bitcoin/pull/12407
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5592018-02-10T22:23:01  <BlueMatt_> we need to improve the at-tip relay latency
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5622018-02-10T22:27:43  <provoostenator> I managed to get my Windows-in-a-VirtualBox build to throw: ERROR: AcceptBlockHeader: block 0000000000000000004c746b087820b517771e136d6776b21586c93c333da523 is marked invalid
5632018-02-10T22:28:15  <provoostenator> That node suffered some above before, so it's probalby not a bug.
5642018-02-10T22:28:20  <provoostenator> some abuse before
5652018-02-10T22:28:34  <BlueMatt_> provoostenator: What sort of abuse?
5662018-02-10T22:28:59  <provoostenator> I think it ran out of disk space last time I used it, about a month ago.
5672018-02-10T22:29:17  <sipa> that still shouldn't happen
5682018-02-10T22:29:19  <provoostenator> And now I copied a binary that I built using Gitian
5692018-02-10T22:29:21  <BlueMatt_> That shouldn't leave the database in an inconsistent state
5702018-02-10T22:29:53  <provoostenator> Right, I can upload debug.log, I think it still has previous stuff
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5722018-02-10T22:31:37  <grafcaps> =2
5732018-02-10T22:33:23  <BlueMatt> provoostenator: note imposter
5742018-02-10T22:34:46  <BlueMatt_> BlueMatt: ?
5752018-02-10T22:35:24  <spudowiar> echeveria: The other BlueMatt has arrived
5762018-02-10T22:35:25  <provoostenator> BlueMatt BlueMatt_ while you figure out the identity crisis.... https://gist.github.com/Sjors/d79600df491d2190a97aa03a08fb6834
5772018-02-10T22:35:45  <spudowiar> provoostenator: Catch me up here (I just joined)
5782018-02-10T22:35:48  <spudowiar> Never mind, this channel is logged
5792018-02-10T22:36:45  <echeveria> spudowiar: I don't have ops in this channel. just note that BlueMatt_ was kicked from #bitcoin for being an impostor.
5802018-02-10T22:37:13  <BlueMatt_> echeveria: Rude.
5812018-02-10T22:37:16  <BlueMatt> provoostenator: what kind of hardware...first error is "ERROR: ConnectBlock: CheckQueue failed" seemingly on that block
5822018-02-10T22:37:29  * BlueMatt pokes sipa
5832018-02-10T22:37:38  * BlueMatt_ pokes sipa
5842018-02-10T22:40:56  *** jarthur has joined #bitcoin-core-dev
5852018-02-10T22:42:07  <provoostenator> I believe the January log was created by version a8f9e20, which was an intermediate version of this: https://github.com/bitcoin/bitcoin/pull/11991#issuecomment-355746951
5862018-02-10T22:42:37  <provoostenator> Most likely pretty similar to whatever master was on January ~6
5872018-02-10T22:42:40  <BlueMatt> by far the most likely is a hardware error
5882018-02-10T22:42:51  <provoostenator> The log from today is rc3 plus my prune changes.
5892018-02-10T22:42:52  <BlueMatt> cpu hot?
5902018-02-10T22:43:04  <provoostenator> Hardwise wise: iMac running Virtual Box running Windows 10
5912018-02-10T22:43:19  <BlueMatt> I mean it wrote out that the block was invalid due to a script failure when it first hit that error and will never reconsider a block automatically
5922018-02-10T22:43:22  <provoostenator> Parent machine runs all sorts of stuff, but seems fine.
5932018-02-10T22:43:27  <BlueMatt_> .
5942018-02-10T22:43:28  <BlueMatt_> ..
5952018-02-10T22:43:29  <BlueMatt_> ...
5962018-02-10T22:43:30  <BlueMatt_> ..
5972018-02-10T22:43:31  <BlueMatt_> .
5982018-02-10T22:43:32  <BlueMatt> what about cpu temps?
5992018-02-10T22:43:44  <provoostenator> Where do I find that?
6002018-02-10T22:43:59  <BlueMatt> errr, on osx no idea
6012018-02-10T22:44:08  <spudowiar> provoostenator: Open the case, stick hand inside
6022018-02-10T22:44:28  <provoostenator> One does not simply ... open an iMac case
6032018-02-10T22:44:56  <BlueMatt_>     .
6042018-02-10T22:44:56  <BlueMatt_>     ..
6052018-02-10T22:44:56  <BlueMatt_>     ...
6062018-02-10T22:44:56  <BlueMatt_> ........
6072018-02-10T22:44:56  <BlueMatt_> .........
6082018-02-10T22:44:57  <BlueMatt_> ........
6092018-02-10T22:44:57  <BlueMatt_>     ...
6102018-02-10T22:44:58  <BlueMatt_>     ..
6112018-02-10T22:44:58  <BlueMatt_>     .
6122018-02-10T22:45:15  <sipa> ?
6132018-02-10T22:45:20  <provoostenator> Isn't a compiler error more likely? Is there a command to make it retry / redownload that block?
6142018-02-10T22:45:23  <BlueMatt> sipa: plz ban imposter...
6152018-02-10T22:45:32  *** ChanServ sets mode: +o sipa
6162018-02-10T22:45:38  *** sipa sets mode: +b *!*uid280897@gateway/web/irccloud.com/x-dnirmopsallzhzte
6172018-02-10T22:45:38  *** BlueMatt_ was kicked by sipa (BlueMatt_)
6182018-02-10T22:45:54  <BlueMatt> provoostenator: I'd think not? we have an impressive ability to break peoples' hardware
6192018-02-10T22:45:56  *** sipa sets mode: -o sipa
6202018-02-10T22:46:01  <BlueMatt> provoostenator: maybe try running a memtest?
6212018-02-10T22:46:03  <spudowiar> provoostenator: You could add the raw block over RPC
6222018-02-10T22:46:13  <BlueMatt> irc command is reconsiderblock
6232018-02-10T22:46:19  <spudowiar> oh, well there's that :)
6242018-02-10T22:46:52  <provoostenator> The thing is, this block is exactly the next one in line since I restarted it.
6252018-02-10T22:47:04  <provoostenator> So I suspect if there was a CPU fire, it was last month.
6262018-02-10T22:47:20  <provoostenator> I'll try the reconsider thing
6272018-02-10T22:47:31  <BlueMatt> err, s/irc/rpc/
6282018-02-10T22:48:00  <BlueMatt> huh? yes, your bitcoind rejected a block, it then stored on disk the fact that it thinks that block is invalid
6292018-02-10T22:48:13  <BlueMatt> and then will always and forevermore refuse to reconsider that block
6302018-02-10T22:48:16  <BlueMatt> unless you do so manually
6312018-02-10T22:48:23  <provoostenator> That definately did something
6322018-02-10T22:48:32  <BlueMatt> (which I'm really starting to think we need to start automatically do....)
6332018-02-10T22:48:35  <BlueMatt> (which I'm really starting to think we need to start automatically doing....)
6342018-02-10T22:49:16  <provoostenator> Yeah, reconsidering the last N blocks at launch if they're invalid, in cases like this?
6352018-02-10T22:49:29  <sipa> we could make it retry a block one second time if validation fails
6362018-02-10T22:49:46  <sipa> and if it then succeed, tell the user they need non-broken hardware?
6372018-02-10T22:49:56  <BlueMatt> no, just if you find a block to be invalid, eg due to script checks, always re-run the scripts single-threaded and if it passes then then put a file on disk that says my-hardware-is-broken and refuse to start
6382018-02-10T22:50:00  <provoostenator> It's chugging along nicely now, although QT doesn't update the count after Synching Headers.
6392018-02-10T22:50:06  <spudowiar> When will reconsidering a block work? (unless you invalidated it manually)
6402018-02-10T22:50:12  <spudowiar> (except for hardware issues)
6412018-02-10T22:50:15  <BlueMatt> yea, what sipa said
6422018-02-10T22:50:26  <sipa> spudowiar: if the signature checks failed due to hardware failure the first time
6432018-02-10T22:50:36  <sipa> in particular, it won't work if your UTXO set is corrupted
6442018-02-10T22:50:38  <BlueMatt> problem is I've seen one report of a rejected block from a node on a server vm
6452018-02-10T22:50:41  <BlueMatt> which is frightening
6462018-02-10T22:50:55  <provoostenator> In fact, getblockchaininfo rpc still has the headers stuck at 499615, while blocks are now at 499686 and increasing
6472018-02-10T22:51:05  <spudowiar> Would it be useful to log the reason the block validation failed?
6482018-02-10T22:51:18  <spudowiar> I feel like one out of 9000 cases could be something scary :)
6492018-02-10T22:51:28  <BlueMatt> well in this case we see the sciript check failure
6502018-02-10T22:51:30  <sipa> spudowiar: there's nothing interesting to report
6512018-02-10T22:51:35  <sipa> "script validation failed"
6522018-02-10T22:51:36  <BlueMatt> it may be useful to log the scriptPubKey being spent from
6532018-02-10T22:51:40  <sipa> (almost always)
6542018-02-10T22:51:53  <BlueMatt> as it would indicate if the utxo set is corrupted vs hardware failed to run the script right
6552018-02-10T22:52:39  <sipa> you'd need to report the full spending TX as well
6562018-02-10T22:52:48  <sipa> (as it affects sighash)
6572018-02-10T22:53:00  <BlueMatt> well that isnt a utxo thing
6582018-02-10T22:53:01  *** promag has joined #bitcoin-core-dev
6592018-02-10T22:53:12  *** spudowiar has quit IRC
6602018-02-10T22:53:57  <BlueMatt> I'm casually starting to worry there is some stupidly-rare race in leveldb or so...so at least we'd have better info on the possibility of that
6612018-02-10T22:54:06  <provoostenator> I do remember from last month that that Windows VM managed to completely crash my iMac. I don't remember if that was while QT was running, but that's quite possibly.
6622018-02-10T22:54:36  <sipa> is it working now after the reconsider?
6632018-02-10T22:56:05  <provoostenator> sipa: it's sycning yes, although the header count doesn't update unless I restart, after which it again doesn't update. Block count does
6642018-02-10T22:56:25  <sipa> hmm, that sounds like an unrelated bug
6652018-02-10T22:56:41  <sipa> but maybe specific to reconsiderblock
6662018-02-10T22:57:50  *** promag has quit IRC
6672018-02-10T22:58:03  <provoostenator> The "marked invalid" thing indeed happened last month.
6682018-02-10T22:58:08  <provoostenator> 2018-01-10 15:45:12 ERROR: ConnectBlock: CheckQueue failed
6692018-02-10T22:58:22  <sipa> yeah, that's just script validation failure
6702018-02-10T22:59:11  <provoostenator> After that it it start banning peers, though not sure if that's causal (BAN THRESHOLD EXCEEDED)
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6722018-02-10T22:59:30  <sipa> it may well be
6732018-02-10T22:59:49  <provoostenator> That would make sense, lots of bans in a row, preceded by ERROR: AcceptBlockHeader: prev block invalid
6742018-02-10T23:00:00  <sipa> yup
6752018-02-10T23:00:10  <provoostenator> It should probably go into "maybe I'm insane" mode
6762018-02-10T23:00:12  <sipa> but interestingly your UTXO set seems unaffected
6772018-02-10T23:00:22  <sipa> just one signature validation that failed
6782018-02-10T23:00:36  <sipa> so it seems likely it was just faulty RAM or overheating CPU
6792018-02-10T23:00:49  <provoostenator> Also notably no crash around that time. Wouldn't a CPU issue kill the host machine?
6802018-02-10T23:01:05  <sipa> no
6812018-02-10T23:01:12  <sipa> it's just a bit flip somewhere, probably
6822018-02-10T23:01:17  <provoostenator> And why has this never happened to my other bitcoind nodes on the same machine?
6832018-02-10T23:01:37  <sipa> CPU bugs are rare, even in overheating systems
6842018-02-10T23:01:44  <provoostenator> I've done almost a dozen full IBD's on it.
6852018-02-10T23:02:01  <sipa> on normally functioning CPU bitflips occur as well
6862018-02-10T23:02:06  <sipa> but only once per decade or so
6872018-02-10T23:02:13  <sipa> (of continuous load)
6882018-02-10T23:04:18  <provoostenator> Alright, I'm off to bed. I'll let the VM continue to sync. Will let you know if it's still misbehaves when that's done.
6892018-02-10T23:04:29  <grubles> anything in dmesg?
6902018-02-10T23:04:58  *** herzmeister[m] has joined #bitcoin-core-dev
6912018-02-10T23:14:25  <provoostenator> By the way, QT didn't give any useful hint that this was going on, other than just not making any progress in syncing and very little P2P activity.
6922018-02-10T23:15:18  *** kewde[m] has joined #bitcoin-core-dev
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6942018-02-10T23:15:26  *** Masaomi[m] has joined #bitcoin-core-dev
6952018-02-10T23:15:26  *** ludens[m] has joined #bitcoin-core-dev
6962018-02-10T23:15:32  <provoostenator> Not sure what the UI could say, some translation of "Either you're being sybil attacked by a dozen nodes or something is wrong with your machine. Call sipa."
6972018-02-10T23:18:29  <BlueMatt> provoostenator: if you're rejecting the chain and all your peers have high-work chain which you think is invalid, its more than just a sybil
6982018-02-10T23:19:29  <provoostenator> One thing the node could try is to "reconsider" an older block that it already knows is valid. If that's suddenly invalid, it knows the machine is broken. If it's valid, it can "reconsider" the block it thought was invalid but all it peers insist is valid.
6992018-02-10T23:20:00  *** promag has joined #bitcoin-core-dev
7002018-02-10T23:20:10  <BlueMatt> sipa: yea, i once saw a very large miner get their node to reject their chain while they were sleeping, resulting in them building a like 4-block-long chain....their utxo set after a reconsiderblock was fine, but it seems that the utxo set in memory got corrupted
7012018-02-10T23:20:22  <BlueMatt> provoostenator: its too nondeterministic
7022018-02-10T23:20:54  <BlueMatt> even if your ram is maybe a bit sketchy you'll still only fail blocks with very low probability
7032018-02-10T23:21:17  <provoostenator> Well it should give up if the behavior is too non deterministic, but at least some retying makes sense, right?
7042018-02-10T23:21:45  <provoostenator> Especially if these type of issues can only lead to false negatives, though I don't know if that's true.
7052018-02-10T23:23:56  <provoostenator> Meanwhile the windows node now says "Number of blocks left: 6000" and getblockchaininfo now shows the correct header count.
7062018-02-10T23:24:33  *** CubicEarths has joined #bitcoin-core-dev
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7092018-02-10T23:26:30  <sipa> provoostenator: i think we'd be better off just continuously spending 1% of the time doing some elliptic curve operations with known results
7102018-02-10T23:26:34  <sipa> and if they fail, complain
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