12017-09-11T00:11:18 <esotericnonsense> hm. is there a reason why one my node would suddenly dump a bunch of tx from its' mempool (with maxmempool set at default)?
22017-09-11T00:11:24 <esotericnonsense> why one of my nodes*
32017-09-11T00:12:03 <esotericnonsense> e.g. different behaviour on one node versus another
42017-09-11T00:12:58 <sipa> a replacement was accepted?
52017-09-11T00:14:09 <esotericnonsense> hm. perhaps. the vsize change is 1MB. there could be some bug in my monitoring software and they're not running the same version unfortunately.
62017-09-11T00:15:12 <esotericnonsense> actually, they might both be on the same. either rc2 and rc3 or both rc3, will check
72017-09-11T00:15:20 <esotericnonsense> https://imgur.com/a/VCBK2
82017-09-11T00:15:41 <esotericnonsense> the small differences i can kind of understand, this massive drop is really odd
92017-09-11T00:16:20 <esotericnonsense> can an rbf transaction be accepted that invalidates a bunch of children?
102017-09-11T00:17:02 <esotericnonsense> i suppose if i leave it running, they should converge at some point if the mempool drops in size more and that'll give a clue
112017-09-11T00:19:34 <esotericnonsense> both on rc3
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132017-09-11T00:22:40 <gmaxwell> esotericnonsense: was a block found at the same time...
142017-09-11T00:22:50 <gmaxwell> 1MB of mempool drop is what you expect when a block is found normally. :)
152017-09-11T00:23:19 <esotericnonsense> gmaxwell: no
162017-09-11T00:23:42 <esotericnonsense> gmaxwell: also, the transactions that are dropped from one node are still there on the other node
172017-09-11T00:23:56 <esotericnonsense> all the other drops in the chart correspond to blocks (the ones that come off the top by fee prio), but not that one
182017-09-11T00:23:59 <gmaxwell> oh they could have just hit the expiration time.
192017-09-11T00:24:56 <esotericnonsense> i thought that, but, we've hit zero mempool recently, isn't that weeks?
202017-09-11T00:26:33 <esotericnonsense> well, i say 'we', i really mean, myself and other nodes that are monitoring this independently :P
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222017-09-11T00:41:43 <meshcollider> argh why did #11289 fail again
232017-09-11T00:41:44 <gribble> https://github.com/bitcoin/bitcoin/issues/11289 | Add wallet backup text to import* and add* RPCs by MeshCollider · Pull Request #11289 · bitcoin/bitcoin · GitHub
242017-09-11T00:42:12 <meshcollider> oh gribbles back
252017-09-11T00:42:19 <esotericnonsense> ah hang on now. it's like a puzzle waiting for me to solve it for new insights. i still don't understand the difference in behaviour, but i can see a reason my mempool analysis stuff is less useful in its current form than i thought
262017-09-11T00:43:06 <esotericnonsense> RBF limits the evictions to 100 transactions, but if you decide to send an opt-in RBF low-ish fee tx with say ten 50kB children and then replace it you can invalidate 500kB
272017-09-11T00:43:25 <gmaxwell> esotericnonsense: yes, though you have to pay a pretty phenomial fee to do that.
282017-09-11T00:44:33 <esotericnonsense> ah yes. the fee would have to include the children's fees. clever.
292017-09-11T00:45:16 <esotericnonsense> this has gone quite OT for this channel now, sorry. :)
302017-09-11T00:50:24 <meshcollider> ok I can't see anything wrong in the log, guessing it was a random failure again. Can someone restart it please :)
312017-09-11T00:54:47 <meshcollider> I feel like I'm always asking for travis restarts, sorry about that but hopefully the random errors get fewer and fewer
322017-09-11T00:54:50 <wumpus> meshcollider: yes it needs to run after master re-cached
332017-09-11T00:54:57 <wumpus> restarted the build
342017-09-11T00:55:37 <meshcollider> thanks :) is there any way to enable me to restart builds myself without write access or whatever, so I can stop bugging people
352017-09-11T00:55:47 <meshcollider> not sure how travis permissions work tbh
362017-09-11T00:55:51 <wumpus> I hope so too, though it's always a fight with travis, for everyone not just you
372017-09-11T00:56:10 <wumpus> I think all organization members (no matter what their permissions) can restart builds
382017-09-11T00:56:48 <wumpus> and that's useful anyhow as it means issues can be assigned to you, so I'll invite you
392017-09-11T00:57:21 <gmaxwell> cfields: hopefully you can get the 0.15 release signatures up ASAP so we can get the gitian builds out. :(
402017-09-11T00:57:59 <meshcollider> Oh cool, sounds good
412017-09-11T00:58:38 <meshcollider> Is anyone working on segwit wallet support for 0.15.1 yet? I would kinda like to take a stab at that if no one else has had time yet
422017-09-11T00:58:54 <sipa> i haven't done it, but was planning to look into it
432017-09-11T00:59:02 <sipa> i expect it to be extremely easy
442017-09-11T01:02:33 <bitcoin-git> [bitcoin] MeshCollider closed pull request #11297: Make sure ~/.bitcoin doesn't exist before build (master...201709_travis_delete_dir) https://github.com/bitcoin/bitcoin/pull/11297
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462017-09-11T01:03:56 <meshcollider> sipa: alright I'm happy to have a go at it if you want to offhand it, just let me know what the general strategy is :)
472017-09-11T01:04:42 <morcos> esotericnonsense: if you get any more insight into your issue, i'm interested. i looked at several nodes that seemed to mirror your node that didn't experience the drop
482017-09-11T01:05:18 <esotericnonsense> morcos: sure. they've almost converged now
492017-09-11T01:07:29 <esotericnonsense> morcos: in particular the block at 0046 UTC (000000000000000000071cf8891c31cb5361797a24cf78e14e2979e9c8c65e29) knocked out a bunch of 10-15 sat/b transactions (in terms of byte size, i'm working on charting tx counts now)
502017-09-11T01:09:05 <esotericnonsense> right, so there were two blocks one after the other there
512017-09-11T01:09:21 <esotericnonsense> the first one had a similar effect on both nodes, the second one took less out of the mempool than it contributed by approx 300kB
522017-09-11T01:09:52 <esotericnonsense> (on the node that experienced the drop). i interpret that as being 300kB of transactions disappeared from the mempool that were included in that block.
532017-09-11T01:10:08 <esotericnonsense> i don't have logs of the txids unfortunately :(
542017-09-11T01:14:17 <esotericnonsense> (oh, relevant detail is that the non-drop node observed 600kb gone from mempool and 600kb block size approximately, so they weren't direct-from-miner tx)
552017-09-11T01:21:04 <esotericnonsense> morcos: digging about a bit and hacking my tool to show tx counts i think i've found the culprits but can't be entirely sure, that block has a few ~30kB consolidation tx that pay 3sat/b
562017-09-11T01:22:47 <esotericnonsense> vague tinfoil idea of a thing you could do: send child tx to some of the network that increase the total required for RBF, while simultaneously sending a tx to other nodes which RBF's the initial tx - if i'm interpreting things right, if my node is in the latter set it would drop the transaction and the others would ignore the fee replacement.
572017-09-11T01:24:07 <esotericnonsense> no idea why this is a thing you'd want to do
582017-09-11T01:29:26 <morcos> esotericnonsense: i'm not sure i follow all that, but how is this explained by a block, or are you just saying that the block ended up having txs that you think could have been the relevant RBF txs?
592017-09-11T01:30:38 <earlz> Can someone give me an explanation for this exploit that is apparently fixed by moving from a database storing per-tx to per-txout? I can't find any good write ups and maintain my own fork and trying to figure out if I'm affected
602017-09-11T01:31:04 <esotericnonsense> i'm just guessing really. it's not that important, just thought I would share as you asked.
612017-09-11T01:32:25 <esotericnonsense> if my node (or some set of nodes close to me) replaced the tx, but the rest of the network didn't, it would sort of make sense. basically you don't actually pay the large 'replace by fee' because you've deliberately seeded miners with an extra child first.
622017-09-11T01:32:28 <morcos> earlz: you can watch the presentation from breaking bitcoin today, but essentially the fact that the pre-0.15 utxo set stored unspent outputs per transaction meant that a new tx could pull in an input that was 1 of many outputs in a previous transaction
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642017-09-11T01:33:02 <morcos> so processing that required pulling the whole previous tx into memory. this is true for each input of a transaction you are processing.
652017-09-11T01:33:10 <esotericnonsense> i can't see what it actually achieves other than mucking about with my mempool and possibly fee estimation if it were based on mempool (which it shouldn't be for that reason)
662017-09-11T01:33:40 <morcos> depending on your threat model, it can be bad in the regular case for low memory nodes, or bad in a contrived attack case for virtually any node
672017-09-11T01:34:04 <morcos> recommend you watch the presentation if you're concerned
682017-09-11T01:45:13 <earlz> thanks, I had similar thoughts last time I worked with coindb that it might be more expensive than expected, but not "can break bitcoin" or crash a node. I'll watch the presentation
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732017-09-11T02:48:12 <bitcoin-git> [bitcoin] MeshCollider reopened pull request #11297: Make sure ~/.bitcoin doesn't exist before build (master...201709_travis_delete_dir) https://github.com/bitcoin/bitcoin/pull/11297
742017-09-11T02:48:51 <meshcollider> Just in case ^
752017-09-11T02:55:36 <meshcollider> wumpus: 21630 failed again with the ~/.bitcoin issue
762017-09-11T02:55:52 <meshcollider> #11289
772017-09-11T02:55:54 <gribble> https://github.com/bitcoin/bitcoin/issues/11289 | Add wallet backup text to import* and add* RPCs by MeshCollider · Pull Request #11289 · bitcoin/bitcoin · GitHub
782017-09-11T02:56:11 <meshcollider> why would it still be failing if the cache was cleared :?
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922017-09-11T06:02:51 <bitcoin-git> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/ee50c9e48786...16e41844e7d6
932017-09-11T06:02:52 <bitcoin-git> bitcoin/master b73628d MeshCollider: Make sure ~/.bitcoin doesn't exist before build
942017-09-11T06:02:52 <bitcoin-git> bitcoin/master 16e4184 MarcoFalke: Merge #11297: Make sure ~/.bitcoin doesn't exist before build...
952017-09-11T06:03:31 <bitcoin-git> [bitcoin] MarcoFalke closed pull request #11297: Make sure ~/.bitcoin doesn't exist before build (master...201709_travis_delete_dir) https://github.com/bitcoin/bitcoin/pull/11297
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992017-09-11T06:20:17 <meshcollider> Someone mind restarting #11289 now that's merged ^? wumpus: seems like I still can't restart travis builds
1002017-09-11T06:20:18 <gribble> https://github.com/bitcoin/bitcoin/issues/11289 | Add wallet backup text to import* and add* RPCs by MeshCollider · Pull Request #11289 · bitcoin/bitcoin · GitHub
1012017-09-11T06:20:44 <meshcollider> oh actually I probably need to rebase to make it work anyway, dw
1022017-09-11T06:25:37 <sipa> yeah
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1052017-09-11T06:33:10 <fanquake> I've just pushed up sigs for 0.15
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1262017-09-11T08:12:33 <midnightmagic> Would it be useful to push sigs for 0.15.0 in advance of the detached sigs "officially" becoming avail for v0.15.0 ? Or should I wait?
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1282017-09-11T08:14:08 <midnightmagic> (or rather, open a PR, not push, obviously)
1292017-09-11T08:14:10 <meshcollider> useful because the detached sigs "officially" become available only after at least 3 people have (correct me if I'm wrong)
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1312017-09-11T08:19:07 <fanquake> Yes we need people to build 0.15.0 and push sigs before we can create the detached sigs.
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1332017-09-11T08:19:47 <meshcollider> im building it atm, should have it up soon too
1342017-09-11T08:21:48 <mryandao> is there a threshold of signatures required before a release can be made?
1352017-09-11T08:22:28 <midnightmagic> okie doke then.
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1372017-09-11T08:22:58 <meshcollider> mryandao: It's all described here https://github.com/bitcoin/bitcoin/blob/master/doc/release-process.md
1382017-09-11T08:25:15 <mryandao> meshcollider: cool thanks.
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1472017-09-11T09:06:57 <bitcoin-git> [bitcoin] mrwhythat opened pull request #11299: [WIP] Implement pruning to location (master...prune-to-location-option) https://github.com/bitcoin/bitcoin/pull/11299
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1642017-09-11T10:22:01 <bitcoin-git> [bitcoin] MeshCollider opened pull request #11300: Tests: Add a lint check for trailing whitespace (master...201709_whitespace_lint) https://github.com/bitcoin/bitcoin/pull/11300
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1712017-09-11T11:01:19 <meshcollider> heh, have I got the worst luck with travis or what, unrelated test timeout on that one too ^
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1732017-09-11T11:19:03 <fanquake> meshcollider restarted it.
1742017-09-11T11:19:12 * cdecker is building sigs now, hopefully battery survives :-)
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2032017-09-11T13:20:41 <achow101> I won't be able to do gitian builds for a few days since my build machine is down for maintenance
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2062017-09-11T13:29:34 <bitcoin-git> [bitcoin] benma closed pull request #10915: Refactor fRelayTxes global to CConnman member (master...fRelayTxes) https://github.com/bitcoin/bitcoin/pull/10915
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2152017-09-11T14:25:04 <bitcoin-git> [bitcoin] benma opened pull request #11301: add m_added_nodes to connman options (master...addnode) https://github.com/bitcoin/bitcoin/pull/11301
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2222017-09-11T15:15:23 <morcos> sipa: I was just discussing BIP 173 with sdaftuar and I agree with him that the upper case and lower case rules for the hrp are very unclear.
2232017-09-11T15:16:04 <morcos> In particular the BIP says that the hrp is restricted to ASCII characters in the range of 33-126
2242017-09-11T15:16:59 <morcos> but I assume you don't want to allow a human readable part where "Aa" is allowed? or "AA" is not the same thing as "aa"?
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2262017-09-11T15:19:42 <morcos> I think the intention is pretty clear from the uppercase/lowercase section, but it seems like we should just require that the hrp not be allowed tocontain the characters in 65-90 (upper case) and that the rules of converting upper to lower before processing apply to hrp and data?
2272017-09-11T15:20:26 <sipa> morcos: sounds good
2282017-09-11T15:21:25 <morcos> And maybe add just a little bit that to the QR section that indicates the alphanumeric mode may be possible depending on the hrp choices
2292017-09-11T15:22:41 <sipa> morcos: i do think it's already implied... as the text says that mixing cases is not allowed, and that for computing the checksum the lowercase version of the hrp is used
2302017-09-11T15:23:16 <sipa> it's probably clearer if we point out that the hrp is just always lowercase
2312017-09-11T15:23:57 <morcos> yes, but if you pick some of the allowed characters for hrp, they dont' fall in alphanumeric such as '<'
2322017-09-11T15:24:31 <morcos> so they are still allowed for a bech32 code, but don't want to confuse people that all bech32 codes will be always able to take advantage of alphanumeric QR encoding
2332017-09-11T15:25:15 <morcos> oh sorry you were responding to the first part
2342017-09-11T15:25:45 <sipa> alphanumeric mode is chosen by the encoder on a character-by-character basis
2352017-09-11T15:26:01 <sipa> it's not tyat your whole string needs to be uppercase to use the advantages
2362017-09-11T15:26:13 <sipa> but they do disappear when you switch all the time
2372017-09-11T15:34:41 <gmaxwell> sipa: that was my ultimate answer to sdaftuar on that too, but I admit I struggled with extracting the justification from the spec.
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2452017-09-11T15:52:19 <bitjazz> hi
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2482017-09-11T16:20:05 <bitcoin-git> [bitcoin] practicalswift closed pull request #11261: scripted-diff: Use <cxxx> instead of deprecated <xxx.h> when including C compatibility headers (master...cinclude) https://github.com/bitcoin/bitcoin/pull/11261
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2752017-09-11T17:32:16 <morcos> sipa: is anything holding up #11100, I know luke-jr does not agree, but we're not goign to get him on board. Let's just merge it so we can stop fighting about it an move on.
2762017-09-11T17:32:18 <gribble> https://github.com/bitcoin/bitcoin/issues/11100 | Fix confusing blockmax{size,weight} options, dont default to throwing away money by TheBlueMatt · Pull Request #11100 · bitcoin/bitcoin · GitHub
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2782017-09-11T17:37:03 <gmaxwell> morcos: fwiw, since that last discussion I've heard from two other miners that accidentally produced undersized blocks due to the defaults.
2792017-09-11T17:43:58 <morcos> yeah it just needs to be merged, it has plenty of ACK's. I was going to see if I needed to spend more time reviewing it or something, but thats not the hold up.
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2932017-09-11T18:33:26 <cfields> gitian builders: v0.15.0 detached sigs are pushed
2942017-09-11T18:34:38 <gmaxwell> \O/
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3082017-09-11T19:18:43 <BlueMatt> heh, in bench we go out of our way to cache countMaskInv (inverse of countMask, an int, as a double) to avoid a div during the inner loop...but in order to avoid that div we first do a convert from int to float, then a mul, then a convert back, which by my instruction tables is roughly the same cost (a tiny bit less, but not enough to care) as just doing the regular int div
3092017-09-11T19:18:48 <BlueMatt> anyone care if I nuke that?
3102017-09-11T19:19:29 <gmaxwell> I think that was benchmarked, but I hate this code.
3112017-09-11T19:19:46 <gmaxwell> the adaptive interval counts stink and make doign a/b tests basically impossible.
3122017-09-11T19:21:59 <BlueMatt> yep, if the interval counts change you are *guaranteed* to get a different result, in my experience, even for 10ish-ms runtimes
3132017-09-11T19:22:38 <gmaxwell> thats suspicious, but I've seen it too
3142017-09-11T19:23:08 <BlueMatt> lol, I know you've run the fibre bench stuff....I think its super sensitive to cache effects given what it does, so that may make it worse
3152017-09-11T19:23:22 <BlueMatt> and possibly malloc time
3162017-09-11T19:23:45 <BlueMatt> anyway, I'm gonna nuke this int-div conversion crap, if someone wants to actually make the framework work, they can, but this isnt the issue with it
3172017-09-11T19:28:40 *** Aaronvan_ is now known as AaronvanW
3182017-09-11T19:33:26 <BlueMatt> heh, reading wallet, "who in the fuck wrote this garbage"...."oh, I did...in 2011"
3192017-09-11T19:34:14 <achow101> BlueMatt: are you volunteering to be wallet maintainer?
3202017-09-11T19:34:41 <gmaxwell> sipa is already the wallet maintainer.
3212017-09-11T19:34:44 <BlueMatt> no, I thought we nominated sipa
3222017-09-11T19:34:45 <BlueMatt> :p
3232017-09-11T19:34:48 <sipa> i thought i had already been volunteerified
3242017-09-11T19:35:32 <achow101> oh yes, sipa was voluntold
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3262017-09-11T19:39:38 <sipa> haha
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3302017-09-11T19:43:55 <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/16e41844e7d6...31e72b284ef5
3312017-09-11T19:43:55 <bitcoin-git> bitcoin/master f151f5f Jonas Schnelli: [macOS] remove Growl support, remove unused code
3322017-09-11T19:43:55 <bitcoin-git> bitcoin/master 31e72b2 Wladimir J. van der Laan: Merge #11268: [macOS] remove Growl support, remove unused code...
3332017-09-11T19:44:39 <bitcoin-git> [bitcoin] laanwj closed pull request #11268: [macOS] remove Growl support, remove unused code (master...2017/09/rm_growl) https://github.com/bitcoin/bitcoin/pull/11268
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3362017-09-11T19:55:07 <bitcoin-git> [bitcoin] TheBlueMatt opened pull request #11303: Fix estimatesmartfee rounding display issue (master...2017-09-estimatesmartfee-round) https://github.com/bitcoin/bitcoin/pull/11303
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3392017-09-11T20:00:32 <bitcoin-git> [bitcoin] sipa pushed 4 new commits to master: https://github.com/bitcoin/bitcoin/compare/31e72b284ef5...1afc22a7667a
3402017-09-11T20:00:33 <bitcoin-git> bitcoin/master ba206d2 Matt Corallo: Deprecate confusing blockmaxsize, fix getmininginfo output...
3412017-09-11T20:00:33 <bitcoin-git> bitcoin/master 3dc263c Matt Corallo: Use a sensible default for blockmaxweight...
3422017-09-11T20:00:34 <bitcoin-git> bitcoin/master 6f703e9 Matt Corallo: Add release notes describing blockmaxweight deprecation
3432017-09-11T20:01:05 <bitcoin-git> [bitcoin] sipa closed pull request #11100: Fix confusing blockmax{size,weight} options, dont default to throwing away money (master...2017-08-sane-default-limits) https://github.com/bitcoin/bitcoin/pull/11100
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4082017-09-11T22:23:35 <BlueMatt> #11304 translates to "Generally I do not understand how to install on linux kali (# 11304)"...should probably just be closed
4092017-09-11T22:23:36 <gribble> https://github.com/bitcoin/bitcoin/issues/11304 | ÐообÑе не Ð¿Ð¾Ð½Ð¸Ð¼Ð°Ñ ÐºÐ°Ðº ÑÑÑановиÑÑ Ð½Ð° linux kali · Issue #11304 · bitcoin/bitcoin · GitHub
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4112017-09-11T22:33:43 <bitcoin-git> [bitcoin] sipa pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/1afc22a7667a...b9bceaf1c081
4122017-09-11T22:33:43 <bitcoin-git> bitcoin/master b86a420 Gregory Sanders: when clearing addrman clear mapInfo and mapAddr
4132017-09-11T22:33:44 <bitcoin-git> bitcoin/master b9bceaf Pieter Wuille: Merge #11252: [P2P] When clearing addrman clear mapInfo and mapAddr....
4142017-09-11T22:34:18 <bitcoin-git> [bitcoin] sipa closed pull request #11252: [P2P] When clearing addrman clear mapInfo and mapAddr. (master...recreateaddrman) https://github.com/bitcoin/bitcoin/pull/11252
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