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82015-10-10T02:19:59 <morcos> has anybody really looked into the recent attack closely?
92015-10-10T02:20:17 <morcos> one thing i find curious is when i start up a new node, it fills up pretty quickly
102015-10-10T02:21:03 <morcos> at a much faster rate than an old node's mempool is growing, so that implies old txs are still showing up
112015-10-10T02:21:59 <morcos> the question is, is that because somebody is rebroadcasting them over and over and if so, how come they are propogating? people keep starting up fresh nodes with empty mempools?
122015-10-10T02:22:21 <morcos> or is this behavior just a "natural" feedback cycle of the network
132015-10-10T02:22:42 <morcos> would it go away when the recentRejects code is widespread?
142015-10-10T02:23:01 <morcos> do we need to reconsider how wallet rebroadcast works?
152015-10-10T02:28:49 <morcos> hmm.. maybe the recentRejcts code isn't going to help that much since it resets
162015-10-10T02:30:14 <morcos> BlueMatt: sipa: sdaftuar: this seems like it could be a problem with limited mempools if there is some way to induce this kind of behavior
172015-10-10T02:31:37 <morcos> where you are relayed many many times.
182015-10-10T02:32:11 <morcos> some of these txs seem to have been requested by my nodes half a dozen times or more
192015-10-10T02:32:52 <morcos> maybe its particularly bad b/c of peer churn now too?
202015-10-10T02:38:03 <petertodd> morcos: the random drop strategy of XT may be helping these txs get rebroadcast
212015-10-10T02:38:57 <morcos> i think that'd be mostly true for any eviction strategy though right?
222015-10-10T02:39:12 <petertodd> morcos: no, the random drop stategy means they can be rebroadcast
232015-10-10T02:39:28 <petertodd> morcos: deterministic strategies don't let that happen in the same way
242015-10-10T02:39:55 <morcos> sort of, you could evict it but then later accept it (and relay it again)
252015-10-10T02:40:00 <petertodd> morcos: exactly
262015-10-10T02:40:08 <morcos> even with 6722 i'm saying
272015-10-10T02:40:17 <morcos> you wouldn't immediately accept it again
282015-10-10T02:40:27 <petertodd> morcos: less of an issue there though, as minfee will rise accordingly
292015-10-10T02:40:35 <petertodd> morcos: random drop allows that to happen wholesale
302015-10-10T02:40:47 <Luke-Jr> oh.
312015-10-10T02:41:10 <Luke-Jr> are we rebroadcasting received wtx still? could spammers target real users to get the amplification?
322015-10-10T02:41:13 <morcos> yeah i guess you might be right that its a lot better
332015-10-10T02:41:41 <morcos> Luke-Jr: ooo, hadn't thought about that.. htats terrible
342015-10-10T02:41:56 <morcos> dont' think thats happening here, since the txs tend to be 100 inputs -> 1 output
352015-10-10T02:42:05 <morcos> and so no room to target somebody else
362015-10-10T02:42:08 <petertodd> Luke-Jr: wouldn't be an issue w/ deterministic dropping mind you
372015-10-10T02:42:13 <Luke-Jr> a possible risk tho
382015-10-10T02:42:21 <Luke-Jr> petertodd: it's an issue as long as you rebroadcast your own crap
392015-10-10T02:42:42 <petertodd> Luke-Jr: it's a privacy issue, but much less of a network-wide DoS one
402015-10-10T02:42:52 <Luke-Jr> petertodd: get enough nodes doing it..
412015-10-10T02:43:17 <petertodd> Luke-Jr: not very likely; too few btc core wallets out there (sadly!)
422015-10-10T02:43:27 <Luke-Jr> :|
432015-10-10T02:43:48 <morcos> i agree with Luke-Jr, seems like its worth thinking about more. increase min fee helps a lot, but once there is enough diversity in the network
442015-10-10T02:44:02 <morcos> it may be able to keep bouncing around
452015-10-10T02:44:10 <morcos> ha! too few core wallets saves the day
462015-10-10T02:44:35 <petertodd> morcos: well, clever attackers would have some anyone-can-spend outputs and do it that way...
472015-10-10T02:44:48 <petertodd> morcos: which incidentally, I have seen before
482015-10-10T02:45:07 <petertodd> bbl
492015-10-10T02:46:22 <Luke-Jr> petertodd: anyone-can-spend outputs are not recognised by the wallet..
502015-10-10T02:56:21 <phantomcircuit> for good reason
512015-10-10T02:58:15 <Luke-Jr> multiple good reasons :p
522015-10-10T03:00:04 <midnightmagic> w 19
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562015-10-10T03:13:58 <attar66> hi
572015-10-10T03:14:05 <attar66> no body talk?
582015-10-10T03:21:04 <petertodd> Luke-Jr: there's a bunch of people automatically grabbing anyone-can-spend outputs, of all types (e.g. known privkey too)
592015-10-10T03:27:12 <gmaxwell> morcos: normally there is no rebroadcast, but over the years there have been no shortage of idiots who amplify.
602015-10-10T03:27:27 <gmaxwell> it would be useful to check to see which peers are giving you these transactions (turn up debugging)
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742015-10-10T06:24:39 <wumpus> morcos: sure, mintxfee could be reduced again in e.g. a later 0.10.x/0.11.x version, if 0.12 is released and mempool limiting works - if those versions still matter by that time
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822015-10-10T07:00:04 <paveljanik> wumpus, 0.10 doesn't contain 649f5d9c1100bb3cbace724900f035939df5ea11. It was backported to 0.11 only. OK?
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902015-10-10T07:39:22 <wumpus> paveljanik: it's not on 0.10
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922015-10-10T08:13:06 <bitcoin-wiki> Hi all
932015-10-10T08:13:11 <bitcoin-wiki> I have a question
942015-10-10T08:13:16 <bitcoin-wiki> can anyone help me?
952015-10-10T08:18:18 <CodeShark_> if it pertains to the channel's topic, don't ask whether you can ask - just ask. if it doesn't pertain to the channel's topic, don't ask anything at all
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1002015-10-10T09:09:10 <Luke-Jr> am I correct that quantum computers shouldn't break HD wallets particularly? ie, knowledge of old pubkeys/privkeys won't expose the other pubkeys for the HD wallet (unless the watch seed is shared)?
1012015-10-10T09:09:56 <paveljanik> wumpus, but 0.10 has the same issue...
1022015-10-10T09:12:28 <CodeShark> Luke-Jr: quantum computers will break ECDSA
1032015-10-10T09:12:41 <Luke-Jr> CodeShark: yes, I know that..
1042015-10-10T09:12:54 <Luke-Jr> CodeShark: context https://www.reddit.com/r/Bitcoin/comments/3o6khf/quantum_computer_how_is_bitcoin_prepared_for_that/cvun6a9?context=3
1052015-10-10T09:16:58 <wumpus> quantum computers is more of a #bitcoin-wizards topic I think
1062015-10-10T09:17:35 <wumpus> paveljanik: is it easy to backport?
1072015-10-10T09:17:58 <paveljanik> sure - it is very simple and could be done easily.
1082015-10-10T09:18:59 <paveljanik> I think it should be the same as you did for 0.11...
1092015-10-10T09:19:03 <paveljanik> I'll check
1102015-10-10T09:26:58 <paveljanik> wumpus, #6797
1112015-10-10T09:27:02 <GitHub25> [bitcoin] paveljanik opened pull request #6797: Do not store more than 200 timedata samples (0.10...patch-13) https://github.com/bitcoin/bitcoin/pull/6797
1122015-10-10T09:27:22 <paveljanik> hmm, I could save typing 8)
1132015-10-10T09:38:36 <GitHub131> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/8c7e6138dbcb...b94ae81576c1
1142015-10-10T09:38:36 <GitHub131> bitcoin/master 21d27eb Wladimir J. van der Laan: net: Disable upnp by default...
1152015-10-10T09:38:37 <GitHub131> bitcoin/master b94ae81 Wladimir J. van der Laan: Merge pull request #6795...
1162015-10-10T09:38:41 <GitHub102> [bitcoin] laanwj closed pull request #6795: net: Disable upnp by default (master...2015_10_disable_upnp_default) https://github.com/bitcoin/bitcoin/pull/6795
1172015-10-10T09:40:07 * btcdrak cheers
1182015-10-10T09:41:44 <GitHub114> [bitcoin] laanwj pushed 1 new commit to 0.10: https://github.com/bitcoin/bitcoin/commit/f2778e0ce6581f68382a4812ef847d387b35f2a0
1192015-10-10T09:41:44 <GitHub114> bitcoin/0.10 f2778e0 Wladimir J. van der Laan: net: Disable upnp by default...
1202015-10-10T09:42:40 <GitHub186> [bitcoin] laanwj pushed 1 new commit to 0.11: https://github.com/bitcoin/bitcoin/commit/4dbcec03ab1e0bc312378cbc16c1b11116f5e506
1212015-10-10T09:42:40 <GitHub186> bitcoin/0.11 4dbcec0 Wladimir J. van der Laan: net: Disable upnp by default...
1222015-10-10T09:50:17 <GitHub184> [bitcoin] laanwj pushed 1 new commit to 0.10: https://github.com/bitcoin/bitcoin/commit/91ef4d93d4952759a6c766fd94eaf2c1df78c372
1232015-10-10T09:50:17 <GitHub184> bitcoin/0.10 91ef4d9 Pavel JanÃk: Do not store more than 200 timedata samples....
1242015-10-10T09:50:39 <GitHub90> [bitcoin] laanwj closed pull request #6797: Do not store more than 200 timedata samples (0.10...patch-13) https://github.com/bitcoin/bitcoin/pull/6797
1252015-10-10T10:09:00 <Luke-Jr> where is the code that re-requests blocks from another peer, if the one we already requested it from has disconnected?
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1272015-10-10T10:13:05 <CodeShark> how do you add a new unit_test.cpp to the build?
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1292015-10-10T10:37:01 <CodeShark> ah, you need to add it to src/Makefile.test.include and reconfigure
1302015-10-10T10:37:09 <CodeShark> should add that to the README...
1312015-10-10T10:46:41 <GitHub12> [bitcoin] CodeShark opened pull request #6798: Clarification of unit test build instructions. (master...unit_test_readme_fix) https://github.com/bitcoin/bitcoin/pull/6798
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1362015-10-10T12:51:06 <wumpus> would decoupling the dust threshold from mintxfee make sense? context: https://github.com/bitcoin/bitcoin/pull/6793
1372015-10-10T13:01:55 <paveljanik> wumpus, after complete redefinition of Dust, yes.
1382015-10-10T13:02:38 <sipa> dust right now means "output that is expected to cost more to spend than it transfers"
1392015-10-10T13:03:15 <sipa> if the relay fee is accurate, then i think that definition is right
1402015-10-10T13:04:14 <wumpus> right
1412015-10-10T13:12:13 <wumpus> the definition of dust is based on the minimum fee accepted, so decoupling it makes little sense
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1472015-10-10T14:15:38 <GitHub176> [bitcoin] sightisanillusion opened pull request #6799: Merge It (master...trivial-next) https://github.com/bitcoin/bitcoin/pull/6799
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1492015-10-10T14:24:55 <GitHub131> [bitcoin] theuni opened pull request #6800: build: fix dmg-mount crashes on OSX 10.11 (0.11...dmg-crash-0.11) https://github.com/bitcoin/bitcoin/pull/6800
1502015-10-10T14:26:27 <GitHub187> [bitcoin] fanquake opened pull request #6801: [depends] Latest config.guess and config.sub (master...update-config-guess-sub) https://github.com/bitcoin/bitcoin/pull/6801
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1542015-10-10T15:56:45 <GitHub142> [bitcoin] ptschip opened pull request #6803: Automatically adjusting Spam Block (master...spamblock) https://github.com/bitcoin/bitcoin/pull/6803
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1612015-10-10T18:45:02 <GitHub145> [bitcoin] gmaxwell closed pull request #6799: Merge It (master...trivial-next) https://github.com/bitcoin/bitcoin/pull/6799
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1632015-10-10T18:59:42 <michagogo> Hm. I think something's wrong with the 0.10.3rc1
1642015-10-10T19:00:02 <michagogo> Not sure if it's just a problem with the builds or if it
1652015-10-10T19:00:10 <michagogo> Not sure if it's just a problem with the builds or if it's indicative of something bigger.
1662015-10-10T19:00:26 <michagogo> https://usercontent.irccloud-cdn.com/file/GLAKxP3u/
1672015-10-10T19:01:23 <michagogo> The files are also wrong: Generating report
1682015-10-10T19:01:23 <michagogo> be1e69c5d6f1dd57a28d2ae3778d6fbd98bb3f9c86c82855d3404aa80ff11a69 bitcoin-0.10.2-linux32.tar.gz
1692015-10-10T19:01:23 <michagogo> 6d8942b5ee59549b23080320bcce18077c10ef9e07b3b0fa1305c88dd07e1e52 bitcoin-0.10.2-linux64.tar.gz
1702015-10-10T19:01:23 <michagogo> 15ec97be9bb843dd315c9835a8791c874bedb41cb994f88508fc5767f4043121 src/bitcoin-0.10.2.tar.gz
1712015-10-10T19:03:24 <michagogo> 18:58:21 <wumpus> my gitian build spends a lot of time in "Upgrading system...". Does making new images avoid that?
1722015-10-10T19:04:13 <michagogo> wumpus: well, bringing the base image up to date does
1732015-10-10T19:05:39 <michagogo> IIRC since the way the VMs are created was changed, it actually creates an image that *only* pulls from precise and not from -updates/-security, so it's ~mandatory for a usable build
1742015-10-10T19:05:51 <michagogo> But I'm not sure if that was KVM too or only LXC
1752015-10-10T19:05:57 <michagogo> One sec
1762015-10-10T19:08:00 <michagogo> Actually, yeah, looks like it's only LXC that uses debootstrap now. KVM still uses vmbuilder, so yeah, simply recreating the base image should (I think) give you an up to date one
1772015-10-10T19:11:19 <michagogo> What I do to upgrade my base image is this: https://www.irccloud.com/pastebin/vHn9M0LP/
1782015-10-10T19:29:41 <michagogo> wumpus: Oh, BTW, you mis-signed 0.10.3rc1. You signed as 0.10.3rc1-win-unsigned, should have been 0.10.3rc1-win. The Windows detached signature process wasn't backported to 0.10.
1792015-10-10T19:30:52 <michagogo> (also, I hope you made sure to keep the OS X unsigned bundle for 0.10.3rc1 and 0.11.1rc1 separate... I almost blew away the 0.11.1rc1 version, but fortunately I realized in time)
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