--- Log opened Tue Sep 18 00:00:12 2018
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00:32 < wumpus> fanquake: great!
00:35 < wumpus> i've pushed 0.16.3 unsigned sigs to gitian.sigs
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00:37 < zndtoshi> Pierre Rochard explained in a presentation about Bitcoin Governance that consensus is reached similary to people meeting at the Schelling point: they know the city but not the location and hour to meet. They will think what the other would  do and vice versa and in NY meet in Grand Central Station at noon without communicating. So conseus in Bitcoin is the same: everyone gravitates to the right software to use or the rig
00:37 < zndtoshi> miners. They have a veto option by signaling acceptance or not of a future softfork. But they should/will meet with everyone else at the Schelling point as well. Is there a REAL need for mining nodes to signal inside the Bitcoin Network? If not, are there any risks to remove mining node signaling?
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00:39 < echeveria> zndtoshi: this is more appropriate for #bitcoin, please ask it there. 
00:40 < zndtoshi> Thought I would ask developers if there is contention about this. Sorry, will post there.
00:42 < fanquake> wumpus cool. Looks like yours match my in-progress 0.16.3. Just finishing the macOS build
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01:08 < wumpus> now building 0.17.0rc4
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03:44 < harding> wumpus: 0.16.3 release PR for BitcoinCore.org for when the binaries are uploaded: https://github.com/bitcoin-core/bitcoincore.org/pull/596
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04:05 < wumpus> harding: thank you, that's quick !
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04:24 < fanquake> wumpus 0.15 will need a build as well I guess, given it's maintenance period doesn't end until after 0.17 release?
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05:52 < wumpus> fanquake: yes, probably would make sense to tag a 0.15.x release as well
05:52 < wumpus> though that is less urgent, today I'd ideally like ot upload binaries for 0.17.0rc4 and 0.16.3 at least
05:55 < achow101> 0.14 isn't EOL yet too
05:57 < wumpus> the patch has been backported to both 0.14 and 0.15
06:00 < wumpus> making a release on those branches is pretty much only a matter of writing (short) release notes, if anyone wants to speed it up and have a go at those, be my guest
06:04 < fanquake> wumpus np. I've just merged achow's sigs. So we've got 3 builders for 0.16.3 and 4 for 0.17.0rc4 so far.
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06:34 < luke-jr> FWIW, I got CVE-2018-17144 assigned for this
06:40 < wumpus> (and bumping the version, and bumping the mangpages maybe)
06:41 < wumpus> luke-jr: thanks
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07:30 < provoostenator> (building in progress for 0.17rc4, I'll do 0.16.3 too)
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07:50 < luke-jr> trivial bug in release notes: wumpus didn't update translations :p
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09:18 < provoostenator> I'll tackle the 0.15.2 release notes if nobody else is already doing it.
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09:29 < provoostenator> Not that many commits so I can probably do it manually, but the release docs say "ping @wumpus on IRC, he has specific tooling to generate the list of merged pulls and sort them into categories based on labels"
09:30 < provoostenator> For backports, so I refer to the backport PR or to the original one?
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09:33 < luke-jr> might be good to mention the CVE number in release notes yet-to-be-final
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09:47 < provoostenator> luke-jr: I'll add that to #14262 now
09:47 < gribble> https://github.com/bitcoin/bitcoin/issues/14262 | 0.15.2 release notes by Sjors · Pull Request #14262 · bitcoin/bitcoin · GitHub
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09:56 < luke-jr>  * [new tag]               v0.16.3.knots20180918 -> v0.16.3.knots20180918
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10:10 < leishman> https://lincolnloop.com/blog/saying-goodbye-botbotme/
10:10 < leishman> "If you are a channel operator and would like to download a copy of the logs for your channel, please send a PM to ipmb on Freenode for more details."
10:10 < leishman> I find the bitcoin-core-dev irc logs on botbot super useful for following development progress and learning. Are there channel logs anywhere else?
10:11 < sipa> see topic :)
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10:12 < leishman> oh haha. I may try to run a version of the botbot logger since it's open source and has a much better UI than the others
10:13 < echeveria> it however, does seem to have a crazy amount of deps. 
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10:15 < echeveria> I guess not too many, I thought foreman was ruby (along with go, python). 
10:17 < leishman> yeah. shouldn't be too difficult to write a simple logger and put a UI on top of it either.
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10:41 < provoostenator> FWIW gen-manpages.sh doesn't work on macOS because of sed issues.
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11:48 < wumpus> luke-jr: I explicitly didn't update translations, because translations can contain 'bugs' and we're not following an rc process
11:49 < wumpus> but yes, not mentioning it in release notes makes sense
11:54 < wumpus> removed mention of translations from #14251
11:54 < gribble> https://github.com/bitcoin/bitcoin/issues/14251 | doc: Add historical release notes for 0.16.3 by laanwj · Pull Request #14251 · bitcoin/bitcoin · GitHub
11:56 < wumpus> provoostenator: yeah, it's more trouble than it's worth using the tooling in this case
12:07 < provoostenator> I'll remove the translation mention as well.
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12:18 < wumpus> I'll add in the CVE, good idea
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12:46 < luke-jr> wumpus:       sudo lxc-execute -n gitian -f var/lxc.config -- sudo -u root -i -- bash
12:46 < luke-jr> why is this line in your .assert? O.o
12:49 < provoostenator> I'm trying to build the man pages on a Gitian box, which doesn't have a display. Any idea how to get around "QXcbConnection: Could not connect to display" for "bitcoin-qt --help"?
12:52 < provoostenator> xvfb-run to the rescue
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13:05 < cfields> gitian builders: v0.16.3 detached sigs are pushed
13:06 < gmaxwell> perhaps people that regularly build should get pinged directly?
13:07 < cfields> fanquake/achow101/jonasschnelli/provoostenator/luke-jr/wumpus/MarcoFalke/fivepiece: ^^
13:07 < achow101> ok
13:07 < cfields> reused from last time
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13:20 < wumpus> luke-jr: no idea!
13:21 < wumpus> luke-jr: oh, apparently I added an 'echo' line once
13:26 < wumpus> must have been while debugging some issue with lxc, didn't expect it to end up anywhere else but on my own screen; hope it doesn't cause problems with validation
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13:41 < luke-jr> XD
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13:49 < luke-jr> pushed my signed gitian sigs (3rd one)
13:50 < luke-jr> wumpus: I doubt the line should cause problems; I only noticed it because I was comparing
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13:57 < ossifrage_> gmaxwell, I was just building a fresh bitcoin and noticed I still had a madvise(MADV_RANDOM) when mmapping read only data in leveldb, Is this worth a PR? It seem to reduces the number of pages fetched, but I don't have a good way to show if it actually helps
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13:58 < provoostenator> Updated man pages in #14263, anything else needed for a v0.15.2 tag?
13:58 < gribble> https://github.com/bitcoin/bitcoin/issues/14263 | Update manpages for 0.15.2 by Sjors · Pull Request #14263 · bitcoin/bitcoin · GitHub
13:58 < luke-jr> ossifrage: LevelDB changes should go upstream
13:58 < wumpus> ossifrage: I think doing optimization PRs only make sense if you can show it is a win
13:59 < wumpus> 0.16.3 binaries up: https://bitcoincore.org/bin/bitcoin-core-0.16.3/
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14:00 < ossifrage> wumpus, it does reduce the working set of pages pulled (at least initially) if people actually care about that (I don't)
14:01 < wumpus> ossifrage: I care about it if it helps performance!
14:01 < luke-jr> might be more of a system performance thing than bitcoind performance
14:01 < luke-jr> (which IMO is still worth getting it merged upstream)
14:02 < ossifrage> luke-jr, yeah it is a system level issue, which makes it much harder to test
14:03 < luke-jr> run Chromium on the test system :P
14:03 < luke-jr> on btrfs
14:03 < luke-jr> lol
14:03 < ossifrage> It depends heavily on how much system level memory pressure you have and how fast your IO is
14:06 < ossifrage> luke-jr, g++ seems triggers way more violent page eviction then chrome does. chrome is a slow burn, g++ is a punch in the face
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14:07 < luke-jr> ossifrage: well, Chromium seems to rewrite its state text files every second or two, and does fsync on that
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14:13 < provoostenator> Is there a way to curse blocks, i.e. the opposite of "preciousblock"?
14:13 < sipa> invalidateblock
14:14 < provoostenator> Thanks
14:14 < sipa> (which is more than cursing, it marks the block as unconditionally invalid)
14:14 < sipa> the oppposite of invalidateblock is reconsiderblock
14:14 < midnightmagic> and of course there's the ancillary haveteawithblock
14:15 < jamesob> any idea when bitcoincore.org is going to be updated with 0.16.3's release notes?
14:17 < theymos> How upgraded are miners right now?
14:17 < wumpus> you people really don't have a second of patience do you
14:17 < midnightmagic> I do!
14:17 < midnightmagic> \o/
14:17 < luke-jr> lol
14:17 < jamesob> wumpus: sorry
14:18 < wumpus> jamesob: anyow you can find them here https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-0.16.3.md
14:20 < wumpus> theymos: some miners have already upgraded, don't know the % though
14:21 < theymos> Do you think that I mention in my bitcointalk.org announcement that a chain split is possible?
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14:22 < provoostenator> theymos: I don't think that's possible
14:23 < achow101> theymos: a chain split is not possible
14:23 < provoostenator> An invalid block could crash a node, but no node, patched or unpatched would accept such a block
14:23 < theymos> ok, thanks
14:24 < achow101> however, if you remove the assert that causes the crash, then you would accept an invalid block. but no release has that
14:28 < wumpus> bitcoincore.org and bitcoin.org PRs have both been merged, should be a matter of times before the sites update...
14:30 < gmaxwell> ossifrage: I should benchmark a reindex I guess.
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14:57 < wumpus> harding: for some reason, bitcoincore.org is not updating, travis shows build passing etc, any idea what coudl be wrong?
15:05 < wumpus> did anyone urge people to upgrade in #bitcoin yet?
15:08 < luke-jr> I announced Knots there, at least. echeveria changed the topic. don't see an actual Core ann tho
15:09 < wumpus> ok
15:15 < TD-Linux> gmaxwell, are there "standard" reindex benchmark settings?
15:16 < gmaxwell> TD-Linux: defaults, and dbcache=10000 (e.g. big enough that it never flushes) are the two cases that are most interesting.  It's useful to -connect=0  to stay offline while benchmarking.
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15:19 < molz> wumpus, i got my nodes updated hours ago, now i'm announcing this on several forums, thanks for all your work and don't let it stress you out 
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15:40 < TD-Linux> how does bitcoin decide how many threads to use? it seems to only be using 16 on my 32 core machine
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15:44 < fanquake> To set the number of script verification threads, we ultimately call std::thread::hardware_concurrency()
15:44 < luke-jr> TD-Linux: boost::thread::physical_concurrency()
15:44 < luke-jr> fanquake: only when compiling with an obsolete boost
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15:45 < luke-jr> TD-Linux: are you sure it has 32 cores? not 16 + HT?
15:45 < TD-Linux> 64 counting HT
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15:45  * luke-jr wonders what it uses on POWER9
15:45 < fanquake> luke-jr not since #10271 ?
15:45 < gribble> https://github.com/bitcoin/bitcoin/issues/10271 | Use std::thread::hardware_concurrency, instead of Boost, to determine available cores by fanquake · Pull Request #10271 · bitcoin/bitcoin · GitHub
15:46 < luke-jr> oh, didn't realise it changed recently; in any case, nobody should be running that yet
15:48 < luke-jr> TD-Linux: might be good to check if that PR fixes it for you
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15:50 < TD-Linux> indeed boost's cpuinfo parsing won't work on my /proc/cpuinfo
15:50 < TD-Linux> it looks for the number of unique (physical id, core id) pairs but that is not a unique identifier on my machine
15:51 < luke-jr> I don't even have physical/core ids in mine XD
15:53 < TD-Linux> yeah so I'm running master for my benchmark
15:53 < TD-Linux> boost would actually say I only have 8 cores with its logic
15:54 < TD-Linux> I'll file a boost bug but I guess I also need a libstdc++ bug
15:54 < luke-jr> >_<
15:55 < luke-jr> does get_nprocs() work?
15:55 < luke-jr> I guess that doesn't try to de-HT
15:56 < TD-Linux> yes it does (returns 64)
15:57 < luke-jr> looks like boost's cpuinfo parsing would fallback to get_nprocs on POWER9
15:57  * TD-Linux kind of doubts that trying to not count HT cores is worth the pain
16:00 < luke-jr> std::thread::hardware_concurrency seems to just wrap get_nprocs on GCC 7.3
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16:07 < gmaxwell> TD-Linux: bitcoin caps at 16 because we measured previously and found that performance stops improving there and gets worse.
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18:35 < ctrlbreak> Need a reality check here...
18:35 < ctrlbreak> I just upgraded a bunch of my nodes, and the binaries report 0.16.3 with --version...
18:36 < ctrlbreak> if I check via 'getnetworkinfo';
18:36 < ctrlbreak>   "version": 160000,
18:36 < ctrlbreak>   "subversion": "/Satoshi:0.16.0/",
18:36 < ctrlbreak> This typical?  (I guess I've just never noticed before).
18:38 < sipa> ctrlbreak: it means you're running 0.16.0
18:38 < ctrlbreak> Oops! Sorry, this probably isn't the appropriate channel.  ciao 
18:38 < ctrlbreak> Should I head to #bitcoin to find out how I've screwed this up?
18:39 < ctrlbreak> bitcoind and bitcoin-cli report 
18:39 < ctrlbreak> bitcoind --version
18:39 < ctrlbreak> Bitcoin Core Daemon version v0.16.3
18:39 < sipa> ctrlbreak: let's move to #bitcoin
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