channel funding tx fee too low

[fixone]

"version" : "v0.5.2-2016-11-21-2262-gd363a68"

any channel I try to fund ends up with 66: min relay fee not met? and the log shows

2018-03-09T07:51:40.117Z lightningd(2550): Owning output 0 49543 (SEGWIT) txid ecce68e9f6f03882c8ea7ed389b1f9db7e3c54c6812d4a7ad10320064297aad4
2018-03-09T07:51:40.117Z lightningd(2550): 	 (tx ecce68e9f6f03882c8ea7ed389b1f9db7e3c54c6812d4a7ad10320064297aad4)
2018-03-09T07:51:40.117Z lightningd(2550): sendrawtransaction: 02000000000101158bf6c859e74dfb8b23b583944fb055ffbbfdbd5027f4df4f98168232909d320000000000ffffffff0287c10000000000001600145231c938e2213be703e3b3926e4fda4c1b68ce1ef07e0e000000000022002087d6c3b1e3b2bc251ee0c79d09ae8e85c1a7e05ec72314e281dc21877928ee3802473044022044a2a9a63a34d73bec8ec3873b1f31b8177b07a9a71c630df04ec679c63b1d2b02207ce83dcb73ae6dbcab8d9a4f0893f4439e5447c523b1a3745871e613cabeb215012102d263d904d10206f426099b6f4bd839b221ca2743f5e40b56871726aa7f15037900000000
2018-03-09T07:51:40.118Z lightningd(2550): Client: Received message 9 from client
2018-03-09T07:51:40.131Z lightningd(2550): lightning_channeld-03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6 chan #92: pid 841, msgfd 54
2018-03-09T07:51:40.131Z lightningd(2550): 03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6 chan #92: Waiting for funding confirmations
2018-03-09T07:51:40.131Z lightningd(2550): 03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6 chan #92: Ignoring fee limits!
2018-03-09T07:51:40.136Z lightningd(2550):jcon fd 39: Success
2018-03-09T07:51:40.138Z lightningd(2550): sendrawtx exit 26, gave error code: -26?error message:?66: min relay fee not met?
2018-03-09T07:51:40.138Z lightningd(2550): 03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6 chan #92: Peer internal error CHANNELD_AWAITING_LOCKIN: Funding broadcast exited with 26: error code: -26?error message:?66: min relay fee not met?
2018-03-09T07:51:40.138Z lightningd(2550): 03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6 chan #92: Peer permanent failure in CHANNELD_AWAITING_LOCKIN: Internal error: Funding broadcast exited with 26: error code: -26?error message:?66: min relay fee not met?
2018-03-09T07:51:40.139Z lightningd(2550): lightning_channeld-03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6 chan #92: Status closed, but not exited. Killing
2018-03-09T07:51:40.139Z lightningd(2550): 	 (tx 652c6b4aef3307a2eddc7a8364e2c725b7440a9a0864fc5b837c112b0123804b)
2018-03-09T07:51:40.140Z lightningd(2550): sendrawtransaction: 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
2018-03-09T07:51:40.141Z lightning_gossipd(2558): Forgetting remote peer 03bf2b602bc3d9dabc6d9172808a0bbe970120ff89be2343ac251980ca8602ffe6
2018-03-09T07:51:40.146Z lightningd(2550): sendrawtx exit 25, gave error code: -25?error message:?Missing inputs?

my bitcoind is 0.16 and getnetworkinfo shows (relevant info : "relayfee": 1e-05)

{
  "version": 160000,
  "subversion": "/Satoshi:0.16.0/",
  "protocolversion": 70015,
  "localservices": "000000000000040d",
  "localrelay": true,
  "timeoffset": 0,
  "networkactive": true,
  "connections": 15,
  "networks": [
    {
      "name": "ipv4",
      "limited": false,
      "reachable": true,
      "proxy": "",
      "proxy_randomize_credentials": false
    },
    {
      "name": "ipv6",
      "limited": false,
      "reachable": true,
      "proxy": "",
      "proxy_randomize_credentials": false
    },
    {
      "name": "onion",
      "limited": true,
      "reachable": false,
      "proxy": "",
      "proxy_randomize_credentials": false
    }
  ],
  "relayfee": 1e-05,
  "incrementalfee": 1e-05,
  "localaddresses": [
    {
      "address": "188.166.99.121",
      "port": 18333,
      "score": 702
    }
  ],
  "warnings": "Warning: unknown new rules activated (versionbit 28)"
}

is there a way to specify the fee for the funding transaction?

[hkjn]

I don't know the answer to your question (and thanks for the report; I believe c-lightning does need to handle this situation better), but as a workaround to get your channel set up you should be able to set minrelaytxfee in your bitcoin.conf to a lower value (or on the commandline), and retransmit the funding tx with bitcoin-cli sendrawtransaction.

[fixone]

I don't think that's the only problem, considering that there were several channels opened with the same bitcoind.conf. I wonder if there's any kind of fee estimation and it makes use of the fact that minrelayfee can be obtained from bitcoind and not use a lower one

[cdecker]

That's a weird one: according to the decoded message and the output being spent c-lightning is trying to create a transaction with a negative fees (950000 + 49543 - 999695 = -152 satoshi fee). Can you share the output of listfunds?

[fixone]

Here it is

lnc listfunds
{ "outputs" :
        [
                { "txid" : "a4c97f71815e3e0c23ff2c89ddec9bdad639ea0855c55cab471a24674761103a", "output" : 0, "value" : 999695, "status" : "confirmed" },
                { "txid" : "edb8fa3c9ad5d25389d972af1483a53027b50315ca505c5097fde4f80f0c6986", "output" : 0, "value" : 999695, "status" : "confirmed" },
                { "txid" : "d596688b2064bd8a917e1119250f0f516b00c5b0d1fd5de4b5b75b1495d593c8", "output" : 0, "value" : 999593, "status" : "confirmed" },
                { "txid" : "73460608c906b1b0dcd0b969443e712073bba96d3930025a1ee6b5c227e3edb4", "output" : 1, "value" : 5584708, "status" : "confirmed" },
                { "txid" : "01d467538773dd061f3e0344ddd31d0d421d65865bc499572559d1c68cd1a6b3", "output" : 1, "value" : 7048935, "status" : "unconfirmed" },
                { "txid" : "a63b07143c7dd712b4021add815132e95400058c036a064662a4e9b16e7fb38a", "output" : 1, "value" : 38802485, "status" : "unconfirmed" },
                { "txid" : "ecce68e9f6f03882c8ea7ed389b1f9db7e3c54c6812d4a7ad10320064297aad4", "output" : 0, "value" : 49543, "status" : "unconfirmed" } ], "channels" :
        [
                { "peer_id" : "033dd7f388fdbf33915c68b548883b899516a8ed7da14ae5eff03ad9f9ab1fe7ad", "short_channel_id" : "1284270:175:0", "channel_sat" : 991979, "channel_total_sat" : 1000000, "funding_txid" : "ec84b4163e6ccf0a0859fb57d441fcb9b99d4abb18dc28fd8d14413cb45a7351" },
                { "peer_id" : "027e92b4fa1988ae5b0d44b87da80ab8875312fdae6631a8896851bc41857e66aa", "short_channel_id" : "1284270:177:0", "channel_sat" : 999647, "channel_total_sat" : 1000000, "funding_txid" : "c590a2cde116c74cd04facd2364ee6b8b9b667b92f56cc52bec5d1b5c724bb87" },
                { "peer_id" : "034fd1f523d694f340f2ee92971a04f837df3e910568222b889ad51b4b826ff361", "short_channel_id" : "1284356:186:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "96eba683e478c2f1b633f821ad66c067c38b5e0dbe91482aa0eb09752d690617" },
                { "peer_id" : "0215b7a76fba355117f916473509719c5e9c3b57a0092f1395ceeea41f4b03c4f0", "short_channel_id" : "1284585:53:1", "channel_sat" : 0, "channel_total_sat" : 900000, "funding_txid" : "5c17813733cea6ae42204f29d0c0e7cf6164c5d83c75958654018601929174d2" },
                { "peer_id" : "028fd42a3eb383bfb803e49f393fb11786108d879fcd46cdfa5ee283e3b896077b", "short_channel_id" : "1286025:14:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "9cf727bc8589a9810d2501df350b66aa49fe28f84a522069250510fe0e7fb467" },
                { "peer_id" : "0381302d9733ac244d0480fb6e5f5f9a6042cd79b9c7ac27d019231185a5344272", "short_channel_id" : "1287117:219:1", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "db7263953b4d515c87b008bb4c13d50fee816d19db11655957e12fbf5ba842f4" },
                { "peer_id" : "038f80b541c3a9c1bbd54b4b15a379db83221e3fb50d5ffc543cef6d62a7f71631", "short_channel_id" : "1287246:46:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "500abba55668c8da79a5a10cb75ce4b6de0e62c1312e7f00fdd6021bd1f269b9" },
                { "peer_id" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134", "short_channel_id" : "1287246:45:0", "channel_sat" : 993689, "channel_total_sat" : 1000000, "funding_txid" : "3760a425946a3dd43a551964d189a6988f1e915a209009b7eb1b89cbaf03ee9a" },
                { "peer_id" : "03730e691d0b4948e42eff18131ef8d345792219601d36796bf3675ce0e5694f99", "short_channel_id" : "1287344:87:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "80ac96bfc18c025e2efe4229b9478986c6ea5b0aef76360c0457ec5d4c73f7d5" },
                { "peer_id" : "024c873f489141f6581c78a8af32a6209eb23847ca55c18b4032e6789af1abfcd0", "short_channel_id" : "1287344:99:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "33bad12d5266daf3fdea77746b0aa58eedab4c8fd03a664ac4058076dc0fc2b1" },
                { "peer_id" : "03f2297213af13b2f61c8881ac96c896d3a5dc53e3a4163d2c594f82d94f8b69a2", "short_channel_id" : "1287344:88:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "a80a76cfa0406723e9d6fefe90966758f69e369f5aea59e0f7bbb9ecfff5c600" },
                { "peer_id" : "0340b8665eb88e576a8e6ec975ab1aa2aea1568deb7cd2195ccb83473f6e1fbf6d", "short_channel_id" : "1287414:179:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "cf2686d4a0081eec159369fc025349c331e1ff64fdc327e9485447f69f38a61d" },
                { "peer_id" : "03172377a939b21aadab64943ac82fc54a6600db48812dec9046c78abd78f5a0a2", "short_channel_id" : "1287428:7:0", "channel_sat" : 980000, "channel_total_sat" : 980000, "funding_txid" : "73460608c906b1b0dcd0b969443e712073bba96d3930025a1ee6b5c227e3edb4" } ] }

[cdecker]

Sorry, I was hoping to see what c-lightning believes the value of output 1329d90328216984fdff42750bdfdbbff55b04f9483b5238bfb4de759c8f68b15:0 is, but that is marked as spent apparently. Could you do a dev-rescan-outputs which'll get the outputs unstuck, and then listfunds again?

[fixone]

After dev-rescan-outputs

lnc listfunds
{ "outputs" :
        [
                { "txid" : "3760a425946a3dd43a551964d189a6988f1e915a209009b7eb1b89cbaf03ee9a", "output" : 1, "value" : 7999087, "status" : "confirmed" },
                { "txid" : "cf2686d4a0081eec159369fc025349c331e1ff64fdc327e9485447f69f38a61d", "output" : 1, "value" : 39752637, "status" : "confirmed" },
                { "txid" : "329d90328216984fdff42750bdfdbbff55b04f9483b5238bfb4de759c8f68b15", "output" : 0, "value" : 999695, "status" : "confirmed" },
                { "txid" : "a4c97f71815e3e0c23ff2c89ddec9bdad639ea0855c55cab471a24674761103a", "output" : 0, "value" : 999695, "status" : "confirmed" },
                { "txid" : "edb8fa3c9ad5d25389d972af1483a53027b50315ca505c5097fde4f80f0c6986", "output" : 0, "value" : 999695, "status" : "confirmed" },
                { "txid" : "d596688b2064bd8a917e1119250f0f516b00c5b0d1fd5de4b5b75b1495d593c8", "output" : 0, "value" : 999593, "status" : "confirmed" },
                { "txid" : "73460608c906b1b0dcd0b969443e712073bba96d3930025a1ee6b5c227e3edb4", "output" : 1, "value" : 5584708, "status" : "confirmed" } ], "channels" :
        [
                { "peer_id" : "033dd7f388fdbf33915c68b548883b899516a8ed7da14ae5eff03ad9f9ab1fe7ad", "short_channel_id" : "1284270:175:0", "channel_sat" : 991979, "channel_total_sat" : 1000000, "funding_txid" : "ec84b4163e6ccf0a0859fb57d441fcb9b99d4abb18dc28fd8d14413cb45a7351" },
                { "peer_id" : "027e92b4fa1988ae5b0d44b87da80ab8875312fdae6631a8896851bc41857e66aa", "short_channel_id" : "1284270:177:0", "channel_sat" : 999647, "channel_total_sat" : 1000000, "funding_txid" : "c590a2cde116c74cd04facd2364ee6b8b9b667b92f56cc52bec5d1b5c724bb87" },
                { "peer_id" : "034fd1f523d694f340f2ee92971a04f837df3e910568222b889ad51b4b826ff361", "short_channel_id" : "1284356:186:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "96eba683e478c2f1b633f821ad66c067c38b5e0dbe91482aa0eb09752d690617" },
                { "peer_id" : "0215b7a76fba355117f916473509719c5e9c3b57a0092f1395ceeea41f4b03c4f0", "short_channel_id" : "1284585:53:1", "channel_sat" : 0, "channel_total_sat" : 900000, "funding_txid" : "5c17813733cea6ae42204f29d0c0e7cf6164c5d83c75958654018601929174d2" },
                { "peer_id" : "028fd42a3eb383bfb803e49f393fb11786108d879fcd46cdfa5ee283e3b896077b", "short_channel_id" : "1286025:14:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "9cf727bc8589a9810d2501df350b66aa49fe28f84a522069250510fe0e7fb467" },
                { "peer_id" : "0381302d9733ac244d0480fb6e5f5f9a6042cd79b9c7ac27d019231185a5344272", "short_channel_id" : "1287117:219:1", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "db7263953b4d515c87b008bb4c13d50fee816d19db11655957e12fbf5ba842f4" },
                { "peer_id" : "038f80b541c3a9c1bbd54b4b15a379db83221e3fb50d5ffc543cef6d62a7f71631", "short_channel_id" : "1287246:46:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "500abba55668c8da79a5a10cb75ce4b6de0e62c1312e7f00fdd6021bd1f269b9" },
                { "peer_id" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134", "short_channel_id" : "1287246:45:0", "channel_sat" : 993689, "channel_total_sat" : 1000000, "funding_txid" : "3760a425946a3dd43a551964d189a6988f1e915a209009b7eb1b89cbaf03ee9a" },
                { "peer_id" : "03730e691d0b4948e42eff18131ef8d345792219601d36796bf3675ce0e5694f99", "short_channel_id" : "1287344:87:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "80ac96bfc18c025e2efe4229b9478986c6ea5b0aef76360c0457ec5d4c73f7d5" },
                { "peer_id" : "024c873f489141f6581c78a8af32a6209eb23847ca55c18b4032e6789af1abfcd0", "short_channel_id" : "1287344:99:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "33bad12d5266daf3fdea77746b0aa58eedab4c8fd03a664ac4058076dc0fc2b1" },
                { "peer_id" : "03f2297213af13b2f61c8881ac96c896d3a5dc53e3a4163d2c594f82d94f8b69a2", "short_channel_id" : "1287344:88:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "a80a76cfa0406723e9d6fefe90966758f69e369f5aea59e0f7bbb9ecfff5c600" },
                { "peer_id" : "0340b8665eb88e576a8e6ec975ab1aa2aea1568deb7cd2195ccb83473f6e1fbf6d", "short_channel_id" : "1287414:179:0", "channel_sat" : 1000000, "channel_total_sat" : 1000000, "funding_txid" : "cf2686d4a0081eec159369fc025349c331e1ff64fdc327e9485447f69f38a61d" },
                { "peer_id" : "03172377a939b21aadab64943ac82fc54a6600db48812dec9046c78abd78f5a0a2", "short_channel_id" : "1287428:7:0", "channel_sat" : 980000, "channel_total_sat" : 980000, "funding_txid" : "73460608c906b1b0dcd0b969443e712073bba96d3930025a1ee6b5c227e3edb4" } ] }

[cdecker]

Hm, also doesn't contain the output I was looking for, maybe it's marked as spent as well?

Could you run the following and share the output?

sqlite3 demo/lightningd.sqlite3 "SELECT hex(prev_out_tx), prev_out_index, status, value FROM outputs"

[fixone]

here it is

4724FA5FC48390A6253AD0009D976EFEB983ECD9E45ACEEA61874D70CDEEE41E|0|2|70000000
378665A398C29DA53192215F4B2949F6B853F624EE2A590A56392E366A515586|1|2|59999822
36054D6AE63DC382F9A62EFF5FDB807345E75DFBBCF6E22E3A68425E1D943FF4|1|2|58999668
0188DE85F14AA5E7B1A023C454C9FB509D2C9EA3CA99928FCCC80AF475D2907A|1|2|48999514
81A279C35BB457A0CCE4B07AB746798021DEC0FBF316EDB51E1FD51D0B70CC40|1|2|47999360
51735AB43C41148DFD28DC18BB4A9DB9B9FC41D457FB59080ACF6C3E16B484EC|1|2|46999206
2CB9519EBDDFBB241782E3CBA64184AB48C79307E89F59B7BAA2587E01D7DBE1|1|2|45999052
87BB24C7B5D1C5BE52CC562FB967B6B9B8E64E36D2AC4FD04CC716E1CDA290C5|1|2|44998898
1706692D7509EBA02A4891BE0D5E8BC367C066AD21F833B6F1C278E483A6EB96|1|2|43998743
B8493A71B192F78A84B7519C766562294D4B98EBBD55AA3445EF82D351FC272D|1|2|42998592
8FB6D1AB010419855EA9CFEEC4F96DF61230B0FFCF1D6E5CD5096EE91BF22284|1|2|41998440
243422E14D15704957FF55CACE60538A7E704CC4D903E816F6CAC12ED6B4E28B|1|2|40998288
12C04C081895359129B2CF94E6A77EE35F9EF7659A7D2F64BD9B24A044817923|0|2|9999700
A8041FFA2C83918EF5B9082714A27EB551ECB6AE141B6DACD53CCB4716EE0C5E|0|2|9999696
37719F75798B4240D244A55384F37D586714E8A1A9403134BA37FE9B9FF9EBB3|0|2|898861
A3EB7AE71C5A615A5159CF5DB598BC10E1FDA9E1014A4940B9D88DE626E9DF65|0|2|998967
67B47F0EFE1005256920524AF828FE49AA660B35DF01250D81A98985BC27F79C|1|2|42998267
3741387DA93064D9EC3A6516D94B577180EDEAB25C2C1E10682F0287BB2D646E|1|2|8999241
42AF84905B574299FCA732E04586A9F56CD2C50D0F27F8352E8B639A710E87C9|0|2|999214
D6B7F5387576CA1C687B8198BF510D9A197F1523893B81938E63A4162E9A2043|1|2|8999542
F442A85BBF2FE157596511DB196D81EE0FD5134CBB08B0875C514D3B956372DB|0|2|897604
B969F2D11B02D6FD007F2E31C1620EDEB6E45CB70CA1A579DAC86856A5BB0A50|1|2|41998113
9AEE03AFCB891BEBB70990205A911E8F98A689D16419553AD43D6A9425A46037|1|0|7999087
C3A9F5C40A006D2B7C47822BFA30084235D808CBF5ECE4F8A9EA4A7A340C293C|1|2|8998532
81632CA2D2D4E708BE473C5FC54381B5F95E3CDD818C45611E49A4789B90FB4C|1|2|41895493
B84CD6A0B34609E493FB1D2115920BFDE9A6FC83C39452FC65F183536DBF5C99|1|2|6998935
D5F7734C5DEC57040C3676EF0A5BEAC6868947B92942FE2E5E028CC1BF96AC80|1|2|7858342
B1C20FDC768005C44A663AD08F4CABED8EA50A6B7477EAFDF3DA66522DD1BA33|1|2|40755303
59751EDC871B605A236461DA41D714AC9656A0BDB0DFF294777E475837D45F66|1|2|5844776
00C6F5FFECB9BBF7E059EA5A9F369EF658679690FEFED6E9236740A0CF760AA8|1|2|6704183
1DA6389FF6475448E927C3FD64FFE131C3495302FC699315EC1E08A0D48626CF|1|0|39752637
AB2253AD0474E006C0DAF4D528D5DCE8220E19F9FF8ECDDD67640F636540FC2C|1|2|4842110
158BF6C859E74DFB8B23B583944FB055FFBBFDBD5027F4DF4F98168232909D32|0|0|999695
3A10614767241A47AB5CC55508EA39D6DA9BECDD892CFF230C3E5E81717FC9A4|0|0|999695
86690C0FF8E4FD97505C50CA1503B52730A58314AF72D98953D2D59A3CFAB8ED|0|0|999695
C893D595145BB7B5E45DFDD1B0C5006B510F0F2519117E918ABD64208B6896D5|0|0|999593
B4EDE327C2B5E61E5A0230396DA9BB7320713E4469B9D0DCB0B106C908064673|1|0|5584708
4FECFA59C2003BBBE168443C69AD8950150F65181C93E2B411C582D4FC937133|1|2|3891958
83EAD444700D6F666831E6C03500FC5DBF95E994FA88CD5BC89B0076E730CF18|1|2|7048935
B3A6D18CC6D159255799C45B86651D420D1DD3DD44033E1F06DD73875367D401|1|2|7048935
8AB37F6EB1E9A46246066A038C050054E9325181DD1A02B412D77D3C14073BA6|1|2|38802485
D4AA9742062003D17A4A2D81C6543C7EDBF9B189D37EEAC88238F0F6E968CEEC|0|2|49543

[cdecker]

My bad, it was in there, I just miscopied the txid: the following lines are what I was looking for

158BF6C859E74DFB8B23B583944FB055FFBBFDBD5027F4DF4F98168232909D32|0|0|999695

{ "txid" : "329d90328216984fdff42750bdfdbbff55b04f9483b5238bfb4de759c8f68b15", "output" : 0, "value" : 999695, "status" : "confirmed" },

(hashes in the db are reversed since they are kept in the hash-order and not little-endian).

Those values seem to match the actual output values: 0.00999695 BTC. The first transaction above is decoded into:

{
  "txid": "ecce68e9f6f03882c8ea7ed389b1f9db7e3c54c6812d4a7ad10320064297aad4",
  "hash": "fda2a22b01735456284bb4a3094ab970dde95d2c6aa70fc5588ab436bb21cbf8",
  "version": 2,
  "size": 234,
  "vsize": 153,
  "locktime": 0,
  "vin": [
    {
      "txid": "329d90328216984fdff42750bdfdbbff55b04f9483b5238bfb4de759c8f68b15",
      "vout": 0,
      "scriptSig": {
        "asm": "",
        "hex": ""
      },
      "txinwitness": [
        "3044022044a2a9a63a34d73bec8ec3873b1f31b8177b07a9a71c630df04ec679c63b1d2b02207ce83dcb73ae6dbcab8d9a4f0893f4439e5447c523b1a3745871e613cabeb21501",
        "02d263d904d10206f426099b6f4bd839b221ca2743f5e40b56871726aa7f150379"
      ],
      "sequence": 4294967295
    }
  ],
  "vout": [
    {
      "value": 0.00049543,
      "n": 0,
      "scriptPubKey": {
        "asm": "0 5231c938e2213be703e3b3926e4fda4c1b68ce1e",
        "hex": "00145231c938e2213be703e3b3926e4fda4c1b68ce1e",
        "reqSigs": 1,
        "type": "witness_v0_keyhash",
        "addresses": [
          "tb1q2gcujw8zyya7wqlrkwfxun76fsdk3ns7ver97a"
        ]
      }
    },
    {
      "value": 0.00950000,
      "n": 1,
      "scriptPubKey": {
        "asm": "0 87d6c3b1e3b2bc251ee0c79d09ae8e85c1a7e05ec72314e281dc21877928ee38",
        "hex": "002087d6c3b1e3b2bc251ee0c79d09ae8e85c1a7e05ec72314e281dc21877928ee38",
        "reqSigs": 1,
        "type": "witness_v0_scripthash",
        "addresses": [
          "tb1qsltv8v0rk27z28hqc7wsnt5wshq60cz7cu33fc5pmsscw7fgacuqwynsge"
        ]
      }
    }
  ]
}

Which results in a fee of 0.00999695 - (0.00950000 + 0.00049543) = 1.52e-6, not negative, but rather on the small side. Probably just an artifact of estimatesmartfee not being all that smart? My guess is that if repeated again this will not happen?

[hkjn]

@cdecker: Let me know if I'm missing something, but regardless of potential wacky responses from estimatesmartfee, if c-lightning produces a tx with fee less than bitcoind's configured minrelaytxfee, the tx will not make it to mempool / be relayed to other nodes for mining.

So unless the user notices and diagnoses the issue, lowers minrelaytxfee and finally retransmits the tx, it seems that the channel funding tx can't be mined. It seems to me that this situation either should be avoided by c-lightning (e.g. using getnetworkinfo output to create a tx with sufficient fee), or if it occurs handled somehow (like taking the channel from CHANNELD_AWAITING_LOCKIN to some failure state).

[ZmnSCPxj]

Yes, we should really impose a timeout on CHANNELD_AWAITING_LOCKIN and fail the channel if this persists for too long. Indeed, the spec requires this behavior if we are the fundee, and it should be reasonable for the funder to behave similarly.

[fixone]

I think the timeout is a good idea, especially if something like getrawtransaction <txid> yields an error code -5 when run against the bitcoin node used to propagate it. Since, in a generic setup (i.e. only over RPC), I don't think that there's a way for a client to find the minrelayfee (is there?), if the sendrawtransaction ends up in an error -66, lightningd should probably rebuild the transaction with a slightly higher fee. Or alternatively have a param to specify fee when doing fundchannel.