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22017-03-08T00:17:40 <cfields> gitian builders: v0.14.0 detached sigs are pushed
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72017-03-08T01:01:15 <midnightmagic> cfields: \o thanks
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422017-03-08T06:22:31 <wumpus> all gitian signatures match this time, this is great
432017-03-08T06:25:14 <wumpus> thanks cfields
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452017-03-08T06:34:50 <sipa> awesome!
462017-03-08T06:37:38 * gmaxwell reloads the mailing list archive webpage
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592017-03-08T07:34:27 <warren> anyone having problems with gitian where it gets stuck at "Checking if target is up" ?
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612017-03-08T07:43:14 <jonasschnelli> warren: what are you using LXC/KVM?
622017-03-08T07:43:35 <jonasschnelli> warren: maybe check the gitian-builder/logs directory. Cat target.log / install.log
632017-03-08T07:46:18 <warren> KVM ... qemu-system-x86_64 gets stuck with 100% CPU usage, target.log is blank
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652017-03-08T08:24:59 <sipa> on what hardware
662017-03-08T08:25:01 <sipa> ?
672017-03-08T08:31:01 <sipa> in particular: do you have hardware acceleration?
682017-03-08T08:31:18 <sipa> if running inside a VM, it may be resorting to software emulation
692017-03-08T08:31:24 *** Guyver2 has joined #bitcoin-core-dev
702017-03-08T08:45:30 <warren> model name : Intel(R) Core(TM) i5-4690S CPU @ 3.20GHz
712017-03-08T08:45:50 <warren> used KVM on this hardware before, I'll figure it out
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762017-03-08T09:28:22 <jonasschnelli> prioritisetransaction <txid> 0 100000000 should lead to (always) include the transaction in the next getblocktemplate call, right?
772017-03-08T09:29:59 <gmaxwell> no, due to caching.
782017-03-08T09:30:20 <gmaxwell> if the block doesn't change IIRC we'll cache the CNB result for up to 30 seconds.
792017-03-08T09:30:41 <jonasschnelli> Is there a way to drain the cache?
802017-03-08T09:30:52 <gmaxwell> mine a new block.
812017-03-08T09:31:10 <gmaxwell> don't call getblocktemplate for (IIRC) 30 seconds before.
822017-03-08T09:31:53 <jonasschnelli> okay... thanks gmaxwell!
832017-03-08T09:32:09 <gmaxwell> Sorry I don't have a more useful suggestion!
842017-03-08T09:33:25 <jonasschnelli> Well... that's already useful. I know now why.
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882017-03-08T09:45:05 <Lauda> ping wumpus
892017-03-08T09:48:10 <gmaxwell> what is the gpg undocumented option to restrict recv-key to only fetch a key it already knows?
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922017-03-08T09:55:08 <gmaxwell> --refresh-keys ah ha
932017-03-08T09:55:12 <gmaxwell> Lauda: thanks
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952017-03-08T10:02:24 <bitcoin-git> [bitcoin] jonasschnelli opened pull request #9947: Add true/false return value to prioritisetransaction (master...2017/03/ptx) https://github.com/bitcoin/bitcoin/pull/9947
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1002017-03-08T10:34:25 <Lauda> You're welcome.
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1082017-03-08T10:58:51 <jonasschnelli> Should we allow to add a fee delta on txn's that are not in the mempool, ... right now we do. I hink we can't change that behavior..
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1102017-03-08T10:59:35 <dcousens_> Yeah, I personally use the current behaviour of "CAmount &delta = mapDeltas[hash]; delta += nFeeDelta;" to prioritize transactions before they are in the mempool
1112017-03-08T11:00:39 <gmaxwell> jonasschnelli: it is an intentional feature that took extra effort to support. Without it, priority is much less effective.
1122017-03-08T11:01:05 <gmaxwell> since txn you want to prioritize might not otherwise make it into your mempool at all.
1132017-03-08T11:01:14 <jonasschnelli> Yes. I see... maybe the return value then should be wether the transaction was already in the mempool or now.
1142017-03-08T11:01:16 <jonasschnelli> *not
1152017-03-08T11:07:52 <dcousens_> ooi, in the above statement, "Amount &delta = mapDeltas[hash]; delta += nFeeDelta;", mapDeltas[hash] if unitialized, does it get default constructed to 0 somehow?
1162017-03-08T11:08:34 <jonasschnelli> Can anyone help me understand why CreateTransaction (CDummySigner VerifyScript seems to be the problem) if I want to use watch-only addresses (no pubkeys available).
1172017-03-08T11:09:05 <jonasschnelli> If the address is P2PKH, it should be capable to calculate the fee, right...
1182017-03-08T11:09:14 <jonasschnelli> Guess not possible for P2SH
1192017-03-08T11:09:46 <jonasschnelli> *[...] understand why CreateTransaction *fails*
1202017-03-08T11:18:36 <bitcoin-git> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/47510ad3dd51...ac23a7c1f19b
1212017-03-08T11:18:37 <bitcoin-git> bitcoin/master 6c1fb73 John Newbery: Improve logging in bctest.py if there is a formatting mismatch
1222017-03-08T11:18:37 <bitcoin-git> bitcoin/master ac23a7c MarcoFalke: Merge #9945: Improve logging in bctest.py if there is a formatting mismatch...
1232017-03-08T11:18:57 <bitcoin-git> [bitcoin] MarcoFalke closed pull request #9945: Improve logging in bctest.py if there is a formatting mismatch (master...improve_bctest_logging) https://github.com/bitcoin/bitcoin/pull/9945
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1252017-03-08T11:28:32 <bitcoin-git> [bitcoin] practicalswift opened pull request #9949: [bench] Avoid function call arguments which are pointers to uninitialized values (master...avoid-pointers-to-unitialized-values-in-function-calls) https://github.com/bitcoin/bitcoin/pull/9949
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1282017-03-08T11:59:11 <bitcoin-git> [bitcoin] MarcoFalke closed pull request #9790: doc/release-notes: Various cleanups (0.14...0.14-relnotes) https://github.com/bitcoin/bitcoin/pull/9790
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1332017-03-08T12:42:26 <NicolasDorier> jonasschnelli: you may encounter the same problem I stumbled upon while doing my watchonlyhd stuff
1342017-03-08T12:42:30 <NicolasDorier> take a look at https://github.com/bitcoin/bitcoin/pull/9728/files#diff-b2bb174788c7409b671c46ccc86034bdL1859
1352017-03-08T12:43:28 <NicolasDorier> basically, watchonly addresses are untrusted if not confirmed
1362017-03-08T12:43:34 <NicolasDorier> might be your problem
1372017-03-08T12:46:21 <jonasschnelli> NicolasDorier. Thanks... ill have a look
1382017-03-08T12:46:43 <NicolasDorier> jonasschnelli: this PR https://github.com/bitcoin/bitcoin/pull/9830 expose the istrusted flag, it might help you to debug
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1452017-03-08T13:18:05 <bitcoin-git> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/ac23a7c1f19b...8bfa13b15b84
1462017-03-08T13:18:05 <bitcoin-git> bitcoin/master fdab309 practicalswift: [trivial] Fix typos introduced in 7184e25c80aa8b1629a700bb7a7e290ad0bb2792
1472017-03-08T13:18:06 <bitcoin-git> bitcoin/master 8bfa13b MarcoFalke: Merge #9936: [trivial] Fix three typos introduced into walletdb.h in commit 7184e25...
1482017-03-08T13:18:25 <bitcoin-git> [bitcoin] MarcoFalke closed pull request #9936: [trivial] Fix three typos introduced into walletdb.h in commit 7184e25 (master...fix-typos-introduced-in-commit-7184e25c) https://github.com/bitcoin/bitcoin/pull/9936
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1622017-03-08T14:48:06 <bitcoin-git> [bitcoin] laanwj opened pull request #9951: Wallet database handling abstractions/simplifications (master...2017_03_wallet_dbwrapper) https://github.com/bitcoin/bitcoin/pull/9951
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1652017-03-08T14:53:26 <bitcoin-git> [bitcoin] laanwj closed pull request #9900: Ban "invalid messagestart" nodes (master...patch-2) https://github.com/bitcoin/bitcoin/pull/9900
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1692017-03-08T15:04:05 <BlueMatt> wumpus: (or someone) should set v0.14.0 as a release on github (https://github.com/bitcoin/bitcoin/releases)
1702017-03-08T15:05:46 <wumpus> yes
1712017-03-08T15:23:53 <bitcoin-git> [bitcoin] laanwj opened pull request #9952: Add historical release notes for 0.14.0 (master...2017_03_014_release_notes) https://github.com/bitcoin/bitcoin/pull/9952
1722017-03-08T15:26:36 <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/8bfa13b15b84...6996e066b538
1732017-03-08T15:26:36 <bitcoin-git> bitcoin/master 2de6930 Wladimir J. van der Laan: Add historical release notes for 0.14.0
1742017-03-08T15:26:37 <bitcoin-git> bitcoin/master 6996e06 Wladimir J. van der Laan: Merge #9952: Add historical release notes for 0.14.0...
1752017-03-08T15:26:59 <arubi> release notes link on github releases is wrong, points to master (which also 404s)
1762017-03-08T15:27:01 <bitcoin-git> [bitcoin] laanwj closed pull request #9952: Add historical release notes for 0.14.0 (master...2017_03_014_release_notes) https://github.com/bitcoin/bitcoin/pull/9952
1772017-03-08T15:27:12 <wumpus> arubi: should be fixed now
1782017-03-08T15:27:17 <wumpus> arubi: you checked too early
1792017-03-08T15:27:18 <arubi> ah yes
1802017-03-08T15:27:33 <arubi> well it still says master :)
1812017-03-08T15:27:49 <arubi> oh, that's where it's pointing, thought it should point to the tag?
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1832017-03-08T15:28:15 <wumpus> that's on purpose. It points at the historical release notes in master, that's the most recent version of the release notes for a version
1842017-03-08T15:28:31 <arubi> understood
1852017-03-08T15:29:01 <wumpus> the one in the tag may be older, e.g. sometimes there are post-mortem fixes, and it can no longer be changed
1862017-03-08T15:29:58 <arubi> yea, now I figure the one it points to is kept up to date with the release
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1902017-03-08T15:48:39 <wumpus> normally release notes aren't edited after the release, but it sometimes happens if there's something very wrong
1912017-03-08T16:00:26 <arubi> I see where I got confused then, I thought for some reason the link would point to the 0.14 branch, and not the 0.14.0 tag, so at some point when 0.14.1 is released then the link points to the same place, but really no reason for it to work like that :)
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1942017-03-08T16:26:55 <bitcoin-git> [bitcoin] TheBlueMatt opened pull request #9953: Fix shutdown hang with >= 8 -addnodes set (master...2017-03-exit-with-addnode) https://github.com/bitcoin/bitcoin/pull/9953
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2182017-03-08T18:45:54 <CubicEarth> What would be the computational bottle neck if validation was parallelized to the point of being able to run on a GPU? During chain-sync for example.
2192017-03-08T18:47:25 <arubi> I think if you could get signature validation on a GPU that would be cool CubicEarth :)
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2212017-03-08T18:48:41 <gmaxwell> CubicEarth: I would be mildly surprised if it were possible to make it faster that way.
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2232017-03-08T18:48:52 <arubi> :(
2242017-03-08T18:49:08 <arubi> oh this is -core-dev, sorry
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2292017-03-08T18:52:26 <wumpus> GPUs are fking unstable on most user's computers
2302017-03-08T18:53:05 <gmaxwell> big lesson from mining there, remarkable how bad it was ... I hope things have improved?
2312017-03-08T18:53:10 <wumpus> utilizing the CPU and GPU during verification by default would be a good way to cause fires and such :)
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2332017-03-08T18:54:46 <wumpus> doesn't seem so, especially on laptops it's bad, even if it doesn't overheat immediately there's usually crash issues with ancient drivers, strange edge cases, and so on. Unless you have to deal with GPUs (e.g. game develpoment) I"d suggest staying far from using them for anything to be used by end-users. For research in well-controlled settings/hardware they're ok.
2342017-03-08T18:56:12 <wumpus> at least you can troubleshoot on-site then...
2352017-03-08T19:02:29 <BlueMatt> gmaxwell: i had to replace the gpu in my workstation because a reasonably-high-end consumer gpu was unstable randomly on a machine that literally only ever displays terminals
2362017-03-08T19:02:39 <BlueMatt> they're fucking terrible
2372017-03-08T19:03:27 <BlueMatt> the workstation-class ones seem to be stable, but its clear literally no one ever bothered to test the drivers against them
2382017-03-08T19:03:37 <CubicEarth> that makes sense for laptops... I was imaging using a typical 4-card mining rig
2392017-03-08T19:09:38 <gmaxwell> What was thefeeling around eliminating the requirement for gbtresults on segwit activation? IMO we shouldn't have behavior changes like that triggered by network events, if it is at all possible to avoid. And also changing the version returned to include segwit, even if the flag isn't set-- we're enforce the rules, which is what matters.
2402017-03-08T19:10:02 <gmaxwell> and there are plenty of miners who will already process transactions.
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2432017-03-08T19:38:14 <sdaftuar> gmaxwell: i'm on board, i was just thinking today abotu coding that up and suggesting it as a backport to the 0.14 branch
2442017-03-08T19:39:02 <gmaxwell> yes, well the addnode bug matt is fixing will call for a 0.14.1 at some point. so I was just thinking it would be good to get that done and in it too.
2452017-03-08T19:39:08 <sdaftuar> agreed
2462017-03-08T19:39:32 <gmaxwell> I'm sorry guys. Didn't make it 24 hours after release before finding something that calls for a 0.14.1. :(
2472017-03-08T19:45:53 <BlueMatt> gmaxwell: yea sucks, but oh well
2482017-03-08T19:56:22 <warren> wumpus: Recently a friend asked what I thought about some startup that aims to accelerate SATA controllers with "low cost desktop GPU's" ...
2492017-03-08T19:58:55 <gmaxwell> I'm sure you must have misheard something.
2502017-03-08T19:59:36 <gmaxwell> for example, maybe they intend to accelerate 200 disk raid with 10 disks of parity.
2512017-03-08T20:01:30 <TD-Linux> warren, just wait until people ask you to solve all their problems with FPGAs
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2542017-03-08T20:10:21 <warren> gmaxwell: hand wavy "everything is possible" presentation including that and somehow blockchains. My first question was "Is this reliable?"
2552017-03-08T20:11:30 <BlueMatt> ok, whos' blocked getting review/merge?
2562017-03-08T20:11:50 * BlueMatt very much is on #9725, and am willing to trade review of that for other things
2572017-03-08T20:11:52 <gribble> https://github.com/bitcoin/bitcoin/issues/9725 | CValidationInterface Cleanups by TheBlueMatt · Pull Request #9725 · bitcoin/bitcoin · GitHub
2582017-03-08T20:16:21 <sdaftuar> gmaxwell: how important do you think it is that CreateNewBlock be fast, when invoked post-segwit activation by a miner that doesn't support it? in order to be fast, we'd have to cache extra information in the mempool, which i'm not eager to do unless really necessary
2592017-03-08T20:17:01 <sdaftuar> (making it work at all, on the other hand, is not very hard)
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2612017-03-08T20:24:22 <gmaxwell> sdaftuar: I think it would be okay if it became slower in that case.
2622017-03-08T20:25:48 <gmaxwell> my expectation is that we'd eventually go back to the current behavior in a later release. (basically: I think it's fine for a new release to change the interface, it's not so fine for network events to change the interface, if it can be avoided.)
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2682017-03-08T20:54:50 <luke-jr> BlueMatt: why remove virtual?
2692017-03-08T20:55:49 <BlueMatt> luke-jr: because I was told you normally remove virtual if you're using override to indicate that you are the implementor of an interface and not something which will be subclassed and overriden
2702017-03-08T20:56:00 <BlueMatt> I dont care either way, talk to ryanofsky
2712017-03-08T20:58:37 <ryanofsky> i don't care much either. i suggested it mainly to be consistent with our other code which uses override. and fwiw, google style guide says "For clarity, use exactly one of override, final, or virtual when declaring an override."
2722017-03-08T21:00:39 <luke-jr> I was under the impression *only* virtuals could have an override, and unless a method is virtual, overrides would de facto get ignored
2732017-03-08T21:02:04 <BlueMatt> no, you have to be implementing a virtual to get override
2742017-03-08T21:02:09 <ryanofsky> it's a compile error to write override on a method that's not virtual, so writing both virtual and override is redundant
2752017-03-08T21:02:10 <BlueMatt> but dont, yourself, have to be virtual
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2772017-03-08T21:04:06 <luke-jr> oh, I see, these are on subclasses
2782017-03-08T21:10:58 <paveljanik> BlueMatt, should I make torControlThread static as well (one line below gBase in src/torcontrol.cpp)?
2792017-03-08T21:11:11 <BlueMatt> paveljanik: anything that can be, probably should be
2802017-03-08T21:11:21 <BlueMatt> i mean especially for such a generic name like "base", but I suppose why not
2812017-03-08T21:11:35 <paveljanik> ok
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2872017-03-08T22:01:03 <bitcoin-git> [bitcoin] sdaftuar opened pull request #9955: Don't require segwit in getblocktemplate for segwit signalling or mining (master...2017-03-mining-segwit-changes) https://github.com/bitcoin/bitcoin/pull/9955
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3062017-03-08T23:04:05 <bitcoin-git> [bitcoin] jnewbery opened pull request #9956: Reorganise qa directory (master...reorganise_qa) https://github.com/bitcoin/bitcoin/pull/9956
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3082017-03-08T23:21:09 <warren> Is anyone using gitian with qemu-system-x86_64 (not LXC)? It seems that the base-trusty-amd64.qcow2 images generated by make-base-vm are currently unbootable. qemu-system-x86_64 gets stuck with 100% CPU usage on one core, very little memory use, nothing in logs but a localhost:16 VNC port shows it is stuck at trying to boot the disk image.
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3102017-03-08T23:48:03 <luke-jr> warren: I do, but my base VM is somewhat old
3112017-03-08T23:50:10 <achow101> warren: I use qemu with gitian and haven't had any issues with make-base-vm
3122017-03-08T23:51:26 <warren> I did as recently as last month, but using the latest gitian-builder's make-base-vm the new base-trusty-amd64.qcow2 I get no longer works with gbuild.
3132017-03-08T23:51:42 <warren> achow101: how long ago did you make your base image?
3142017-03-08T23:51:56 <achow101> whenever 0.14.0rc3 was tagged
3152017-03-08T23:52:17 <achow101> (last week I think)
3162017-03-08T23:54:58 <bitcoin-git> [bitcoin] deannolan opened pull request #9958: RPC:Refactor: Remove unreachable code refs #9573 (master...RPC_refactor) https://github.com/bitcoin/bitcoin/pull/9958