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  62020-01-25T00:56:18  <jeremyrubin> by the way; last call for OP_CTV BIP 119 registrations
  72020-01-25T00:56:31  <jeremyrubin> https://utxos.org/workshops/
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 222020-01-25T03:21:52  <fanquake>  5-6 gitian sigs each for the 0.19.1rc1 binaries so far, and the windows detached sigs are up, thanks cfields
 232020-01-25T03:22:08  <fanquake> jonasschnelli are you able to get some osx detached sigs up soon?
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 502020-01-25T08:09:32  <bitcoin-git> [bitcoin] fanquake closed pull request #17565: Fixed freezing GUI on reindex (master...freezing-gui-on-reindex) https://github.com/bitcoin/bitcoin/pull/17565
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 532020-01-25T08:12:26  <bitcoin-git> [bitcoin] fanquake closed pull request #16696: validation: static_assert to ensure width in unit class (master...fix-uintbase) https://github.com/bitcoin/bitcoin/pull/16696
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 872020-01-25T11:33:39  <jonasschnelli> I have a different hash than wumpus for bitcoin-0.19.1rc1-osx-unsigned.tar.gz (https://bitcointools.jonasschnelli.ch/data/builds/1333/bitcoin-core-osx-0.19-build.assert)
 882020-01-25T11:33:52  <jonasschnelli> I guess wumpus'es are off (everyone else has the same)
 892020-01-25T11:33:57  <jonasschnelli> 	I pushed the osx detatched signature. Sorry, had to force push since my git email was set wrong.
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 952020-01-25T11:38:02  <jonasschnelli> looks like my irc messages end up in the nirvana...
 962020-01-25T11:39:30  <jonasschnelli> (good now though)
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1002020-01-25T11:54:55  <fanquake> jonasschnelli: thanks
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1102020-01-25T12:48:50  <wumpus> strange...
1112020-01-25T12:51:29  <wumpus> at least it's only osx that mismatches, linux and windows are ok
1122020-01-25T12:51:54  <wumpus> will try rebuilding
1132020-01-25T12:51:57  <fanquake> wumpus might have modified your macOS SDK somehow?
1142020-01-25T12:52:21  <wumpus> no, not as far as I know
1152020-01-25T12:52:41  <wumpus> pretty sure this is the same setup I've used to build 0.19.0.1
1162020-01-25T12:53:11  <fanquake> ok. If you wanted to upload bitcoin-0.19.1rc1-osx-unsigned.tar.gz I'd take a look
1172020-01-25T12:55:20  <wumpus> will do! first going to try again to see if it's not just a fluke
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1212020-01-25T13:17:02  <wumpus> re-built: same problem. The .tar.gz differs (but it is determinstic) but the dmg matches
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1232020-01-25T13:22:20  <wumpus> fanquake: put up my version of the file here if anyone wants to try to compare it: https://download.visucore.com/bitcoin/bitcoin-0.19.1rc1-osx-unsigned.tar.gz
1242020-01-25T13:25:33  <fanquake> wumpus: thanks. Having a look
1252020-01-25T13:26:00  <wumpus> thankyou!
1262020-01-25T13:28:12  <fanquake> wumpus the difference is in the .note.gnu.build-id section of the dmg tool
1272020-01-25T13:29:02  <fanquake> can you do a readelf --string-dump .note.gnu.build-id path/to/dmg
1282020-01-25T13:36:29  <fanquake> wumpus in the second part of that section I'm seeing
1292020-01-25T13:36:37  <fanquake>  [    10]  r^[T???'Ó½?d?*???f?? for my binary
1302020-01-25T13:36:45  <fanquake> [    10]  #{?^Vv^[s_?ْb?^D? ? for yours
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1332020-01-25T13:41:36  <fanquake> Looks like the difference is actually a little bigger.
1342020-01-25T13:41:38  <fanquake> https://gist.github.com/fanquake/3303ac3bc9efc63293d59df5b81d1cef
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1372020-01-25T13:47:17  <fanquake> Our libdmg package in the 0.19 branch hasn't been changed since it was introduced, https://github.com/bitcoin/bitcoin/blob/0.19/depends/packages/native_libdmg-hfsplus.mk, so I'm quite interested to no what might be causing this difference
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1532020-01-25T16:12:53  <kanzure> #proposedmeetingtopic topic idea collection for physical meeting
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1552020-01-25T16:24:49  <bitcoin-git> [bitcoin] MarcoFalke pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/28fbe68fdcac...c26b05c2b78f
1562020-01-25T16:24:49  <bitcoin-git> bitcoin/master 2d23082 Micky Yun Chan: bump test timeouts so that functional tests run in valgrind
1572020-01-25T16:24:50  <bitcoin-git> bitcoin/master c26b05c MarcoFalke: Merge #17770: test: bump test timeouts so that functional tests run in val...
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1602020-01-25T16:25:13  <bitcoin-git> [bitcoin] MarcoFalke merged pull request #17770: test: bump test timeouts so that functional tests run in valgrind (master...bump) https://github.com/bitcoin/bitcoin/pull/17770
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1692020-01-25T16:49:04  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #17999: refactor: Add ChainClient setMockTime, getWallets methods (master...pr/ipc-clients) https://github.com/bitcoin/bitcoin/pull/17999
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1722020-01-25T16:49:30  <bitcoin-git> [bitcoin] MarcoFalke reopened pull request #17999: refactor: Add ChainClient setMockTime, getWallets methods (master...pr/ipc-clients) https://github.com/bitcoin/bitcoin/pull/17999
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1742020-01-25T16:55:13  <hebasto> are detached sigs for 0.19.1rc1 tagged?
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1772020-01-25T17:02:26  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #17997: refactor: Remove mempool global from net (master...2001-netMempool) https://github.com/bitcoin/bitcoin/pull/17997
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1802020-01-25T17:02:41  <bitcoin-git> [bitcoin] MarcoFalke reopened pull request #17997: refactor: Remove mempool global from net (master...2001-netMempool) https://github.com/bitcoin/bitcoin/pull/17997
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1862020-01-25T17:38:28  <wumpus> fanquake: I'm really confused, so there is some difference in a third-party tool, not one of our own executables, and it's mostly just a difference in message?
1872020-01-25T17:38:51  <wumpus> dmg is replaced by <elf>?
1882020-01-25T17:39:35  <wumpus> I gues I'll delete the cache and retry...
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2012020-01-25T19:20:03  <wumpus> that didn't solve it either, I'm baffled
2022020-01-25T19:29:02  <wumpus> fanquake: in your comparisons in https://gist.github.com/fanquake/3303ac3bc9efc63293d59df5b81d1cef, there's
2032020-01-25T19:29:04  <wumpus>  -  0x0001ccf0 7c69736f 7c646d67 5d203c69 6e3e203c |iso|<elf>] <in> <
2042020-01-25T19:29:13  <wumpus>  +  0x0001ccf0 7c69736f 7c646d67 5d203c69 6e3e203c |iso|dmg] <in> <
2052020-01-25T19:29:32  <wumpus> I don't unnderstand why the text is different in that hexdump, but the hex digits seem the same?
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2072020-01-25T19:29:57  <bitcoin-git> [bitcoin] sipsorcery opened pull request #18001: Updated appveyor job to checkout a specific vcpkg commit ID (master...vcpkg-specific-version) https://github.com/bitcoin/bitcoin/pull/18001
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2092020-01-25T19:30:32  <wumpus> they're supposed to be different representation of the same data, right?
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2112020-01-25T19:30:47  <bitcoin-git> [bitcoin] sipsorcery closed pull request #17995: Load vcpkg port files from a separate repository. (master...vcpkg-ports-separate) https://github.com/bitcoin/bitcoin/pull/17995
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2132020-01-25T19:34:10  <sipa> Œð|iso|dmg] <in> <
2142020-01-25T19:34:46  <sipa> is the hex ascii conversion
2152020-01-25T19:42:38  <wumpus> exactly! so I don't see where the <elf> comes from; the dmg executable definitely differs from the ones generated by other's gitian, but I don't yet know in what way (besides the build id, but that's a kind of hash of some sections)
2162020-01-25T19:43:22  <wumpus> deleted and regenerating the gitian base image, will delete the cache again, and try yet again if I get a different output
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2192020-01-25T19:46:21  <wumpus> can someone please put up their "correct" version of bitcoin-0.19.1rc1-osx-unsigned.tar.gz?
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2222020-01-25T20:04:22  <fanquake> wumpus sure
2232020-01-25T20:04:48  <fanquake> I'm also confused by the supposed string substitution
2242020-01-25T20:07:13  <fanquake> wumpus https://uploadfiles.io/xb1hzk0i 5023cb07d685a7f4b6ff3e1c12753da0b7cbf4f492d309d9b74b1f4e76af21eb
2252020-01-25T20:09:50  <jonatack> fanquake: am gitian building 0.19.1rc1, is that the correct tag atm?
2262020-01-25T20:10:53  <fanquake> that's the most recent tag, yes
2272020-01-25T20:11:19  <jonatack> thanks
2282020-01-25T20:12:04  <jeremyrubin> Independent of Taproot PR; would there be any strong objections to picking *an* implementation of std::optional (from some compiler's includes)  or adding a minimal optional subsititue and eliminating the boost dependency? see https://github.com/martinmoene/optional-bare/blob/master/include/nonstd/optional.hpp and https://github.com/tcbrindle/cpp17_headers/blob/master/include/stx/optional.hpp as copyable examples
2292020-01-25T20:12:31  <jeremyrubin> (This came up in the context of taproot of not wanting to use optional in consensus to avoid a boost dep)
2302020-01-25T20:13:02  <gwillen> wumpus: sipa: that hexdump is not a hexdump
2312020-01-25T20:13:24  <gwillen> some tool has blindly performed an s/dmg/<elf>/ _after_ the hexdump was run, on whatever file contained the output
2322020-01-25T20:13:50  <gwillen> there is a mistargeted glob somewhere or something in that toolchain
2332020-01-25T20:14:26  <fanquake> gwillen I guess diffoscope must be broken then
2342020-01-25T20:15:09  <fanquake> As that's what was used to generate those dumps.
2352020-01-25T20:15:14  <gwillen> I am not familiar with diffoscope so I can't comment, but (1) the hex in the hexdump always controls, the displayed characters are just for convenience, and (2) you can see the the NUMBER of characters in the right column is wrong
2362020-01-25T20:15:21  <gwillen> because dmg and <elf> are not the same length
2372020-01-25T20:16:46  <gwillen> I suspect the same of the --symbols output, probably there is no <elf> in the binary, something is messing with the tool output
2382020-01-25T20:17:28  <jeremyrubin> Another option would just be to fill in with boost::optional if c++17 isn't available, and std::optional otherwise (so libconsensus can build w/o boost on newer compilers)
2392020-01-25T20:17:41  <fanquake> I think you might be right. Maybe the difference really is only the Build ID
2402020-01-25T20:18:55  <fanquake> heh
2412020-01-25T20:18:57  <fanquake> https://salsa.debian.org/reproducible-builds/diffoscope/issues/80
2422020-01-25T20:19:20  <fanquake> wumpus The iso <elf> substitution is a bug in diffoscope
2432020-01-25T20:19:49  <fanquake> I think the only difference between the two tools might actually just be the build ID
2442020-01-25T20:19:50  <sipa> fanquake: more like crazy feature
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2462020-01-25T20:20:27  <fanquake> sipa a good time waster
2472020-01-25T20:20:36  <gwillen> oh, good find fanquake, thanks, I was going to go nuts trying to track that down
2482020-01-25T20:22:02  <gwillen> I guess you named one of the files "dmg" when passing it to diffoscope, triggering the overzealous search-and-replace on only one side
2492020-01-25T20:22:56  <fanquake> gwillen yea the binary is just named dmg
2502020-01-25T20:23:11  <fanquake> I was doing diffoscope wumpus.dmg dmg
2512020-01-25T20:23:26  <gwillen> that is a pretty nasty bug / misfeature in diffoscope
2522020-01-25T20:23:34  <fanquake> If I swap that for diffoscope wumpus.dmg fanquake.dmg I see
2532020-01-25T20:24:09  <fanquake> https://gist.github.com/fanquake/c2108e690a320e23727c80b839197b91
2542020-01-25T20:26:38  <gwillen> that build ID is allegedly supposed to be a hash of the binary contents to make it reproducible, I wonder what went wrong here
2552020-01-25T20:29:58  <gwillen> I wonder if the way build ID is computed changed between versions of ld -- the original default is documented to have been md5, whereas the current default is allegedly sha1
2562020-01-25T20:32:42  <fanquake> From what I understand, Build ID isn't necessarily a content hash, almost more like a UUID. However will continue looking tomorrow.
2572020-01-25T20:32:48  * fanquake goes back to sleep
2582020-01-25T20:33:54  <gwillen> there is apparently a --build-id flag you pass to ld, which you can set to values like "sha1" or "md5" or "uuid" or "0x..." (a constant)
2592020-01-25T20:34:04  <gwillen> see e.g. https://fedoraproject.org/wiki/RolandMcGrath/BuildID
2602020-01-25T20:34:40  <sipa> fanquake: so that's how you do it
2612020-01-25T20:34:43  <gwillen> but given apparently identical inputs, and a difference in build ID on exactly one machine, I definitely wonder if the difference is the ld on that machine is doing something funny
2622020-01-25T20:35:15  <sipa> you have an AI to wake you up when there are interesting IRC or github conversations and sleep in between
2632020-01-25T20:36:28  <fanquake> sipa: yea something fancy like that
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2682020-01-25T21:06:54  <bitcoin-git> [bitcoin] sipa opened pull request #18002: Abstract out script execution out of VerifyWitnessProgram() (master...202001_execute_witness) https://github.com/bitcoin/bitcoin/pull/18002
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2712020-01-25T21:19:09  <wumpus> fanquake: after building with a newly generated base image I managed to get the same output as everyone else now, pushed new sigs
2722020-01-25T21:19:55  <wumpus> fanquake: likely it's some ubuntu package difference that caused it; will still do a comparison just to be sure
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2742020-01-25T21:24:56  <wumpus> right: the only difference I get is the .note.gnu.build-id section -- well, okay, that's only a id and can't be an implanted backdoor at least :-) thank you for your help fanquake, seems this has been resolved
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2792020-01-25T21:57:14  <fanquake> wumpus great!
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