Core dump - Add BBT Marker

#1

Hi there,

Here is what I have so far as a minimal working example (MWE) for an ardour core dump.

http://de.gauthier.pl/pour/.ardour/2026-09-25_CoreDump.ardour (~24.4 KiB)

^ All is fine with this file until you Add BBT Marker (By right clicking in the Bars:Beats time line trying with most any name, any bar, any beat) after which I get :
[1] 295294 segmentation fault (core dumped) ardour9

Archlinux
Ardour9.8.0 (built using 9.8 and GCC version 16.2.1 20260810)

#2

Could you archive the whole session (rather than just the session file itself) and make that available?

#3

Of course !

http://de.gauthier.pl/pour/.ardour/coreDump.zip

but those file where created automatically when I oppened the coreDump.ardour file.

I really hope this helps.

#4

Or maybe I should start over :

I have this studio session that I want to setup for a full symphony orchestra where everything is written down in typical PDF scores. From this LilyPond project I have this MIDI file in which most sections, tempo, time signatures resides.

Workflow :

  • Start a fresh ardour9 session
  • Session → Import Audio/MIDI files…
  • Select metronome.mid
    • as new tracks
    • playhead (which is at bar 3 since I want two extra counting bars before bar 1)
    • one track per file
    • -none- as MIDI Instrument
    • by track number
    • X Use MIDI Tempo Map
    • X Import MIDI markers
    • Import
  • Add BBT Marker to set current bar 3 as bar 1.
  • Core dump :sob:
#5

I can add the BBT marker just fine, but then double-clicking on it crashes.

It also looks like Ardour does not import the Time Signatures present in the file, but that’s a different story.

#6

What I get when adding the BBT is :

CB
TempoMapCutBuffer @ 0x564472d76350
Tempos:
	0x564472d76400 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@0/0:0/1|1|0
	0x564472dbe420 30 1/4 notes per minute (564480000 sc-per-1/4) P@6773753232/36:0/7|1|0
	0x564472dbe520 100 1/4 notes per minute (169344000 sc-per-1/4) P@7902713232/38:0/8|1|0
	0x564472dbe690 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@48037241232/275:0/67|1|0
	0x564472dbe790 83.7501 1/4 notes per minute (202201534 sc-per-1/4) P@59891309388/338:0/77|7|0
	0x564472dbe820 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@59992410155/338:960/77|8|0
	0x564472dbe8b0 71.25 1/4 notes per minute (237675715 sc-per-1/4) P@60101664271/339:0/77|9|0
	0x564472dbe940 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@60220502129/339:960/77|10|0
	0x564472dbe9d0 58.75 1/4 notes per minute (288244938 sc-per-1/4) P@60350766614/340:0/77|11|0
	0x564472dbea60 52.5 1/4 notes per minute (322559960 sc-per-1/4) P@60494889083/340:960/77|12|0
	0x564472dbeaf0 56.875 1/4 notes per minute (297747677 sc-per-1/4) P@60656169063/341:0/78|1|0
	0x564472dbebf0 61.2501 1/4 notes per minute (276479764 sc-per-1/4) P@60805042902/341:960/78|1|960
	0x564472dbec80 65.6251 1/4 notes per minute (258047798 sc-per-1/4) P@60943282784/342:0/78|2|0
	0x564472dbed10 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@61072306683/342:960/78|2|960
	0x564472dbeda0 70.8334 1/4 notes per minute (239073650 sc-per-1/4) P@61193266562/343:0/78|3|0
	0x564472dbee30 71.6667 1/4 notes per minute (236293868 sc-per-1/4) P@61312803387/343:960/78|3|960
	0x564472dbeec0 72.5 1/4 notes per minute (233577873 sc-per-1/4) P@61430950321/344:0/78|4|0
	0x564472dbef50 73.3334 1/4 notes per minute (230923405 sc-per-1/4) P@61547739258/344:960/78|4|960
	0x564472dbefe0 74.1667 1/4 notes per minute (228328773 sc-per-1/4) P@61663200961/345:0/79|1|0
	0x564472dbf070 75 1/4 notes per minute (225792000 sc-per-1/4) P@61777365348/345:960/79|1|960
	0x564472dbf100 75.8334 1/4 notes per minute (223310546 sc-per-1/4) P@61890261348/346:0/79|2|0
	0x564472dbf190 76.6667 1/4 notes per minute (220883282 sc-per-1/4) P@62001916621/346:960/79|2|960
	0x564472dbf220 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@62112358262/347:0/79|3|0
	0x564472dbf2b0 78.3334 1/4 notes per minute (216183704 sc-per-1/4) P@62221612378/347:960/79|3|960
	0x564472dbf340 79.1667 1/4 notes per minute (213908003 sc-per-1/4) P@62329704230/348:0/79|4|0
	0x564472dbf3d0 80 1/4 notes per minute (211680000 sc-per-1/4) P@62436658232/348:960/79|4|960
	0x564472dbf460 80.8333 1/4 notes per minute (209497720 sc-per-1/4) P@62542498232/349:0/80|1|0
	0x564472dbf4f0 81.6668 1/4 notes per minute (207359752 sc-per-1/4) P@62647247092/349:960/80|1|960
	0x564472dbf580 82.5001 1/4 notes per minute (205265249 sc-per-1/4) P@62750926968/350:0/80|2|0
	0x564472dbf610 83.3333 1/4 notes per minute (203212800 sc-per-1/4) P@62853559593/350:960/80|2|960
	0x564472dbf6a0 84.1667 1/4 notes per minute (201200711 sc-per-1/4) P@62955165993/351:0/80|3|0
	0x564472dbf730 85 1/4 notes per minute (199228136 sc-per-1/4) P@63055766349/351:960/80|3|960
	0x564472dbf7c0 85.8333 1/4 notes per minute (197293945 sc-per-1/4) P@63155380417/352:0/80|4|0
	0x564472dbf850 86.6668 1/4 notes per minute (195396728 sc-per-1/4) P@63254027390/352:960/80|4|960
	0x564472dbf8e0 87.5 1/4 notes per minute (193535919 sc-per-1/4) P@63351725754/353:0/81|1|0
	0x564472dbf970 88.3334 1/4 notes per minute (191710109 sc-per-1/4) P@63448493714/353:960/81|1|960
	0x564472dbfa00 89.1667 1/4 notes per minute (189918449 sc-per-1/4) P@63544348769/354:0/81|2|0
	0x564472dbfa90 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@63639307994/354:960/81|2|960
	0x564472dbfb20 92.5001 1/4 notes per minute (183074412 sc-per-1/4) P@63733387900/355:0/81|3|0
	0x564472dbfbb0 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@63824925106/355:960/81|3|960
	0x564472dbfc40 97.5001 1/4 notes per minute (173685980 sc-per-1/4) P@63914053394/356:0/81|4|0
	0x564472dbfcd0 100 1/4 notes per minute (169344000 sc-per-1/4) P@64000896384/356:960/81|4|960
	0x564472dbfd60 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@74246208384/417:0/97|1|0
	0x564472dbfdf0 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@74335336672/417:960/97|1|960
	0x564472dbfe80 85 1/4 notes per minute (199228136 sc-per-1/4) P@74429416578/418:0/97|2|0
	0x564472dbff10 80 1/4 notes per minute (211680000 sc-per-1/4) P@74529030646/418:960/97|2|960
	0x564472dbffa0 75 1/4 notes per minute (225792000 sc-per-1/4) P@74634870646/419:0/97|3|0
	0x564472dc0030 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@74747766646/419:960/97|3|960
	0x564472dc00c0 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@74868726525/420:0/97|4|0
	0x564472dc0150 60 1/4 notes per minute (282240000 sc-per-1/4) P@74998991010/420:960/97|4|960
Meters:
	0x564472d76490 12/8 P@0/0:0/1|1|0
	0x564472dbe4b0 2/4 P@6773753232/36:0/7|1|0
	0x564472dbe5b0 5/4 P@7902713232/38:0/8|1|0
	0x564472dbe620 4/4 P@8749433232/43:0/9|1|0
	0x564472dbe720 12/8 P@48037241232/275:0/67|1|0
	0x564472dbeb80 4/4 P@60656169063/341:0/78|1|0
final map


TEMPO MAP @ 0x5644638ca020:
... tempos...
0x564472d76250 120 1/4 notes per minute (141120000 sc-per-1/4) P@0/0:0/1|1|0
0x564472dc01e0 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@1128960000/8:0/3|1|0
0x564472dc02e0 30 1/4 notes per minute (564480000 sc-per-1/4) P@7902713232/44:0/9|1|0
0x564472dc03e0 100 1/4 notes per minute (169344000 sc-per-1/4) P@9031673232/46:0/10|1|0
0x564472dc0550 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@49166201232/283:0/69|1|0
0x564472dc0650 83.7501 1/4 notes per minute (202201534 sc-per-1/4) P@61020269388/346:0/79|7|0
0x564472dc06e0 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@61121370155/346:960/79|8|0
0x564472dc0770 71.25 1/4 notes per minute (237675715 sc-per-1/4) P@61230624271/347:0/79|9|0
0x564472dc0800 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@61349462129/347:960/79|10|0
0x564472dc0890 58.75 1/4 notes per minute (288244938 sc-per-1/4) P@61479726614/348:0/79|11|0
0x564472dc0920 52.5 1/4 notes per minute (322559960 sc-per-1/4) P@61623849083/348:960/79|12|0
0x564472dc09b0 56.875 1/4 notes per minute (297747677 sc-per-1/4) P@61785129063/349:0/80|1|0
0x564472dc0ab0 61.2501 1/4 notes per minute (276479764 sc-per-1/4) P@61934002902/349:960/80|1|960
0x564472dc0b40 65.6251 1/4 notes per minute (258047798 sc-per-1/4) P@62072242784/350:0/80|2|0
0x564472dc0bd0 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@62201266683/350:960/80|2|960
0x564472dc0c60 70.8334 1/4 notes per minute (239073650 sc-per-1/4) P@62322226562/351:0/80|3|0
0x564472dc0cf0 71.6667 1/4 notes per minute (236293868 sc-per-1/4) P@62441763387/351:960/80|3|960
0x564472dc0d80 72.5 1/4 notes per minute (233577873 sc-per-1/4) P@62559910321/352:0/80|4|0
0x564472dc0e10 73.3334 1/4 notes per minute (230923405 sc-per-1/4) P@62676699258/352:960/80|4|960
0x564472dc0ea0 74.1667 1/4 notes per minute (228328773 sc-per-1/4) P@62792160961/353:0/81|1|0
0x564472dc0f30 75 1/4 notes per minute (225792000 sc-per-1/4) P@62906325348/353:960/81|1|960
0x564472dc0fc0 75.8334 1/4 notes per minute (223310546 sc-per-1/4) P@63019221348/354:0/81|2|0
0x564472dc1050 76.6667 1/4 notes per minute (220883282 sc-per-1/4) P@63130876621/354:960/81|2|960
0x564472dc10e0 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@63241318262/355:0/81|3|0
0x564472dc1170 78.3334 1/4 notes per minute (216183704 sc-per-1/4) P@63350572378/355:960/81|3|960
0x564472dc1200 79.1667 1/4 notes per minute (213908003 sc-per-1/4) P@63458664230/356:0/81|4|0
0x564472dc1290 80 1/4 notes per minute (211680000 sc-per-1/4) P@63565618232/356:960/81|4|960
0x564472dc1320 80.8333 1/4 notes per minute (209497720 sc-per-1/4) P@63671458232/357:0/82|1|0
0x564472dc13b0 81.6668 1/4 notes per minute (207359752 sc-per-1/4) P@63776207092/357:960/82|1|960
0x564472dc1440 82.5001 1/4 notes per minute (205265249 sc-per-1/4) P@63879886968/358:0/82|2|0
0x564472dc14d0 83.3333 1/4 notes per minute (203212800 sc-per-1/4) P@63982519593/358:960/82|2|960
0x564472dc1560 84.1667 1/4 notes per minute (201200711 sc-per-1/4) P@64084125993/359:0/82|3|0
0x564472dc15f0 85 1/4 notes per minute (199228136 sc-per-1/4) P@64184726349/359:960/82|3|960
0x564472dc1680 85.8333 1/4 notes per minute (197293945 sc-per-1/4) P@64284340417/360:0/82|4|0
0x564472dc1710 86.6668 1/4 notes per minute (195396728 sc-per-1/4) P@64382987390/360:960/82|4|960
0x564472dc17a0 87.5 1/4 notes per minute (193535919 sc-per-1/4) P@64480685754/361:0/83|1|0
0x564472dc1830 88.3334 1/4 notes per minute (191710109 sc-per-1/4) P@64577453714/361:960/83|1|960
0x564472dc18c0 89.1667 1/4 notes per minute (189918449 sc-per-1/4) P@64673308769/362:0/83|2|0
0x564472dc1950 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@64768267994/362:960/83|2|960
0x564472dc19e0 92.5001 1/4 notes per minute (183074412 sc-per-1/4) P@64862347900/363:0/83|3|0
0x564472dc1a70 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@64953885106/363:960/83|3|960
0x564472dc1b00 97.5001 1/4 notes per minute (173685980 sc-per-1/4) P@65043013394/364:0/83|4|0
0x564472dc1b90 100 1/4 notes per minute (169344000 sc-per-1/4) P@65129856384/364:960/83|4|960
0x564472dc1c20 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@75375168384/425:0/99|1|0
0x564472dc1cb0 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@75464296672/425:960/99|1|960
0x564472dc1d40 85 1/4 notes per minute (199228136 sc-per-1/4) P@75558376578/426:0/99|2|0
0x564472dc1dd0 80 1/4 notes per minute (211680000 sc-per-1/4) P@75657990646/426:960/99|2|960
0x564472dc1e60 75 1/4 notes per minute (225792000 sc-per-1/4) P@75763830646/427:0/99|3|0
0x564472dc1ef0 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@75876726646/427:960/99|3|960
0x564472dc1f80 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@75997686525/428:0/99|4|0
0x564472dc2010 60 1/4 notes per minute (282240000 sc-per-1/4) P@76127951010/428:960/99|4|960
... meters...
0x564472d762e0 4/4 P@0/0:0/1|1|0
0x564472dc0270 12/8 P@1128960000/8:0/3|1|0
0x564472dc0370 2/4 P@7902713232/44:0/9|1|0
0x564472dc0470 5/4 P@9031673232/46:0/10|1|0
0x564472dc04e0 4/4 P@9878393232/51:0/11|1|0
0x564472dc05e0 12/8 P@49166201232/283:0/69|1|0
0x564472dc0a40 4/4 P@61785129063/349:0/80|1|0
... bartimes...
... all points ...
0x564472d76298 P@0/0:0/1|1|0 Tempo
0x564472d76300 P@0/0:0/1|1|0 Meter
0x564472dc0290 P@1128960000/8:0/3|1|0 Meter
0x564472dc0228 P@1128960000/8:0/3|1|0 Tempo
0x564472dc0390 P@7902713232/44:0/9|1|0 Meter
0x564472dc0328 P@7902713232/44:0/9|1|0 Tempo
0x564472dc0490 P@9031673232/46:0/10|1|0 Meter
0x564472dc0428 P@9031673232/46:0/10|1|0 Tempo
0x564472dc0500 P@9878393232/51:0/11|1|0 Meter
0x564472dc0600 P@49166201232/283:0/69|1|0 Meter
0x564472dc0598 P@49166201232/283:0/69|1|0 Tempo
0x564472dc0698 P@61020269388/346:0/79|7|0 Tempo
0x564472dc0728 P@61121370155/346:960/79|8|0 Tempo
0x564472dc07b8 P@61230624271/347:0/79|9|0 Tempo
0x564472dc0848 P@61349462129/347:960/79|10|0 Tempo
0x564472dc08d8 P@61479726614/348:0/79|11|0 Tempo
0x564472dc0968 P@61623849083/348:960/79|12|0 Tempo
0x564472dc0a60 P@61785129063/349:0/80|1|0 Meter
0x564472dc09f8 P@61785129063/349:0/80|1|0 Tempo
0x564472dc0af8 P@61934002902/349:960/80|1|960 Tempo
0x564472dc0b88 P@62072242784/350:0/80|2|0 Tempo
0x564472dc0c18 P@62201266683/350:960/80|2|960 Tempo
0x564472dc0ca8 P@62322226562/351:0/80|3|0 Tempo
0x564472dc0d38 P@62441763387/351:960/80|3|960 Tempo
0x564472dc0dc8 P@62559910321/352:0/80|4|0 Tempo
0x564472dc0e58 P@62676699258/352:960/80|4|960 Tempo
0x564472dc0ee8 P@62792160961/353:0/81|1|0 Tempo
0x564472dc0f78 P@62906325348/353:960/81|1|960 Tempo
0x564472dc1008 P@63019221348/354:0/81|2|0 Tempo
0x564472dc1098 P@63130876621/354:960/81|2|960 Tempo
0x564472dc1128 P@63241318262/355:0/81|3|0 Tempo
0x564472dc11b8 P@63350572378/355:960/81|3|960 Tempo
0x564472dc1248 P@63458664230/356:0/81|4|0 Tempo
0x564472dc12d8 P@63565618232/356:960/81|4|960 Tempo
0x564472dc1368 P@63671458232/357:0/82|1|0 Tempo
0x564472dc13f8 P@63776207092/357:960/82|1|960 Tempo
0x564472dc1488 P@63879886968/358:0/82|2|0 Tempo
0x564472dc1518 P@63982519593/358:960/82|2|960 Tempo
0x564472dc15a8 P@64084125993/359:0/82|3|0 Tempo
0x564472dc1638 P@64184726349/359:960/82|3|960 Tempo
0x564472dc16c8 P@64284340417/360:0/82|4|0 Tempo
0x564472dc1758 P@64382987390/360:960/82|4|960 Tempo
0x564472dc17e8 P@64480685754/361:0/83|1|0 Tempo
0x564472dc1878 P@64577453714/361:960/83|1|960 Tempo
0x564472dc1908 P@64673308769/362:0/83|2|0 Tempo
0x564472dc1998 P@64768267994/362:960/83|2|960 Tempo
0x564472dc1a28 P@64862347900/363:0/83|3|0 Tempo
0x564472dc1ab8 P@64953885106/363:960/83|3|960 Tempo
0x564472dc1b48 P@65043013394/364:0/83|4|0 Tempo
0x564472dc1bd8 P@65129856384/364:960/83|4|960 Tempo
0x564472dc1c68 P@75375168384/425:0/99|1|0 Tempo
0x564472dc1cf8 P@75464296672/425:960/99|1|960 Tempo
0x564472dc1d88 P@75558376578/426:0/99|2|0 Tempo
0x564472dc1e18 P@75657990646/426:960/99|2|960 Tempo
0x564472dc1ea8 P@75763830646/427:0/99|3|0 Tempo
0x564472dc1f38 P@75876726646/427:960/99|3|960 Tempo
0x564472dc1fc8 P@75997686525/428:0/99|4|0 Tempo
0x564472dc2058 P@76127951010/428:960/99|4|960 Tempo
------------


paths done, cancel = 0
for t2-1.mid source length appears to be b816000
[1]    423177 segmentation fault (core dumped)  ardour9
#7

Same here but not segfault at the end (with 9.8-91-gc4e09cc3e0)

TempoMapCutBuffer @ 0x50e000168bc0
Tempos:
	0x50d0019bda50 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@0/0:0/1|1|0
	0x50d003b197a0 30 1/4 notes per minute (564480000 sc-per-1/4) P@6773753232/36:0/7|1|0
	0x50d003b19ae0 100 1/4 notes per minute (169344000 sc-per-1/4) P@7902713232/38:0/8|1|0
	0x50d003b19870 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@48037241232/275:0/67|1|0
	0x50d0018f0220 83.7501 1/4 notes per minute (202201534 sc-per-1/4) P@59891309388/338:0/77|7|0
	0x50d000572370 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@59992410155/338:960/77|8|0
	0x50d000572510 71.25 1/4 notes per minute (237675715 sc-per-1/4) P@60101664271/339:0/77|9|0
	0x50d0005725e0 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@60220502129/339:960/77|10|0
	0x50d0005726b0 58.75 1/4 notes per minute (288244938 sc-per-1/4) P@60350766614/340:0/77|11|0
	0x50d000572780 52.5 1/4 notes per minute (322559960 sc-per-1/4) P@60494889083/340:960/77|12|0
	0x50d000579a10 56.875 1/4 notes per minute (297747677 sc-per-1/4) P@60656169063/341:0/78|1|0
	0x50d0005729f0 61.2501 1/4 notes per minute (276479764 sc-per-1/4) P@60805042902/341:960/78|1|960
	0x50d000572850 65.6251 1/4 notes per minute (258047798 sc-per-1/4) P@60943282784/342:0/78|2|0
	0x50d000572920 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@61072306683/342:960/78|2|960
	0x50d000572c60 70.8334 1/4 notes per minute (239073650 sc-per-1/4) P@61193266562/343:0/78|3|0
	0x50d000572d30 71.6667 1/4 notes per minute (236293868 sc-per-1/4) P@61312803387/343:960/78|3|960
	0x50d000572b90 72.5 1/4 notes per minute (233577873 sc-per-1/4) P@61430950321/344:0/78|4|0
	0x50d0005c4e30 73.3334 1/4 notes per minute (230923405 sc-per-1/4) P@61547739258/344:960/78|4|960
	0x50d000572ed0 74.1667 1/4 notes per minute (228328773 sc-per-1/4) P@61663200961/345:0/79|1|0
	0x50d000573210 75 1/4 notes per minute (225792000 sc-per-1/4) P@61777365348/345:960/79|1|960
	0x50d000573070 75.8334 1/4 notes per minute (223310546 sc-per-1/4) P@61890261348/346:0/79|2|0
	0x50d000573140 76.6667 1/4 notes per minute (220883282 sc-per-1/4) P@62001916621/346:960/79|2|960
	0x50d0005733b0 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@62112358262/347:0/79|3|0
	0x50d000573480 78.3334 1/4 notes per minute (216183704 sc-per-1/4) P@62221612378/347:960/79|3|960
	0x50d000573550 79.1667 1/4 notes per minute (213908003 sc-per-1/4) P@62329704230/348:0/79|4|0
	0x50d000573620 80 1/4 notes per minute (211680000 sc-per-1/4) P@62436658232/348:960/79|4|960
	0x50d0005736f0 80.8333 1/4 notes per minute (209497720 sc-per-1/4) P@62542498232/349:0/80|1|0
	0x50d000573960 81.6668 1/4 notes per minute (207359752 sc-per-1/4) P@62647247092/349:960/80|1|960
	0x50d000573a30 82.5001 1/4 notes per minute (205265249 sc-per-1/4) P@62750926968/350:0/80|2|0
	0x50d000573e40 83.3333 1/4 notes per minute (203212800 sc-per-1/4) P@62853559593/350:960/80|2|960
	0x50d000573b00 84.1667 1/4 notes per minute (201200711 sc-per-1/4) P@62955165993/351:0/80|3|0
	0x50d000573ca0 85 1/4 notes per minute (199228136 sc-per-1/4) P@63055766349/351:960/80|3|960
	0x50d000573d70 85.8333 1/4 notes per minute (197293945 sc-per-1/4) P@63155380417/352:0/80|4|0
	0x50d000575770 86.6668 1/4 notes per minute (195396728 sc-per-1/4) P@63254027390/352:960/80|4|960
	0x50d000573f10 87.5 1/4 notes per minute (193535919 sc-per-1/4) P@63351725754/353:0/81|1|0
	0x50d001812e10 88.3334 1/4 notes per minute (191710109 sc-per-1/4) P@63448493714/353:960/81|1|960
	0x50d000573fe0 89.1667 1/4 notes per minute (189918449 sc-per-1/4) P@63544348769/354:0/81|2|0
	0x50d0005740b0 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@63639307994/354:960/81|2|960
	0x50d00055e0e0 92.5001 1/4 notes per minute (183074412 sc-per-1/4) P@63733387900/355:0/81|3|0
	0x50d00055de70 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@63824925106/355:960/81|3|960
	0x50d000574320 97.5001 1/4 notes per minute (173685980 sc-per-1/4) P@63914053394/356:0/81|4|0
	0x50d000574250 100 1/4 notes per minute (169344000 sc-per-1/4) P@64000896384/356:960/81|4|960
	0x50d0005744c0 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@74246208384/417:0/97|1|0
	0x50d000574590 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@74335336672/417:960/97|1|960
	0x50d000574660 85 1/4 notes per minute (199228136 sc-per-1/4) P@74429416578/418:0/97|2|0
	0x50d000574730 80 1/4 notes per minute (211680000 sc-per-1/4) P@74529030646/418:960/97|2|960
	0x50d000574800 75 1/4 notes per minute (225792000 sc-per-1/4) P@74634870646/419:0/97|3|0
	0x50d0005748d0 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@74747766646/419:960/97|3|960
	0x50d0005749a0 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@74868726525/420:0/97|4|0
	0x50d000574a70 60 1/4 notes per minute (282240000 sc-per-1/4) P@74998991010/420:960/97|4|960
Meters:
	0x508001a4e020 12/8 P@0/0:0/1|1|0
	0x508001a4e0a0 2/4 P@6773753232/36:0/7|1|0
	0x508001a4e120 5/4 P@7902713232/38:0/8|1|0
	0x508001a4e1a0 4/4 P@8749433232/43:0/9|1|0
	0x508001a4e220 12/8 P@48037241232/275:0/67|1|0
	0x508001a4e2a0 4/4 P@60656169063/341:0/78|1|0
final map


TEMPO MAP @ 0x51600025fe80:
... tempos...
0x50d0019bdb20 120 1/4 notes per minute (141120000 sc-per-1/4) P@0/0:0/1|1|0
0x50d000574b40 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@1128960000/8:0/3|1|0
0x50d000574c10 30 1/4 notes per minute (564480000 sc-per-1/4) P@7902713232/44:0/9|1|0
0x50d000574ce0 100 1/4 notes per minute (169344000 sc-per-1/4) P@9031673232/46:0/10|1|0
0x50d000574db0 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@49166201232/283:0/69|1|0
0x50d000574e80 83.7501 1/4 notes per minute (202201534 sc-per-1/4) P@61020269388/346:0/79|7|0
0x50d000574f50 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@61121370155/346:960/79|8|0
0x50d000575020 71.25 1/4 notes per minute (237675715 sc-per-1/4) P@61230624271/347:0/79|9|0
0x50d0005c5170 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@61349462129/347:960/79|10|0
0x50d0005751c0 58.75 1/4 notes per minute (288244938 sc-per-1/4) P@61479726614/348:0/79|11|0
0x50d000575290 52.5 1/4 notes per minute (322559960 sc-per-1/4) P@61623849083/348:960/79|12|0
0x50d000575360 56.875 1/4 notes per minute (297747677 sc-per-1/4) P@61785129063/349:0/80|1|0
0x50d000575430 61.2501 1/4 notes per minute (276479764 sc-per-1/4) P@61934002902/349:960/80|1|960
0x50d000575500 65.6251 1/4 notes per minute (258047798 sc-per-1/4) P@62072242784/350:0/80|2|0
0x50d0005755d0 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@62201266683/350:960/80|2|960
0x50d0005756a0 70.8334 1/4 notes per minute (239073650 sc-per-1/4) P@62322226562/351:0/80|3|0
0x50d000575910 71.6667 1/4 notes per minute (236293868 sc-per-1/4) P@62441763387/351:960/80|3|960
0x50d000575840 72.5 1/4 notes per minute (233577873 sc-per-1/4) P@62559910321/352:0/80|4|0
0x50d000575ab0 73.3334 1/4 notes per minute (230923405 sc-per-1/4) P@62676699258/352:960/80|4|960
0x50d0005759e0 74.1667 1/4 notes per minute (228328773 sc-per-1/4) P@62792160961/353:0/81|1|0
0x50d000575ec0 75 1/4 notes per minute (225792000 sc-per-1/4) P@62906325348/353:960/81|1|960
0x50d000575b80 75.8334 1/4 notes per minute (223310546 sc-per-1/4) P@63019221348/354:0/81|2|0
0x50d000575c50 76.6667 1/4 notes per minute (220883282 sc-per-1/4) P@63130876621/354:960/81|2|960
0x50d000575d20 77.5001 1/4 notes per minute (218508232 sc-per-1/4) P@63241318262/355:0/81|3|0
0x50d000575df0 78.3334 1/4 notes per minute (216183704 sc-per-1/4) P@63350572378/355:960/81|3|960
0x50d0005762d0 79.1667 1/4 notes per minute (213908003 sc-per-1/4) P@63458664230/356:0/81|4|0
0x50d00046c3c0 80 1/4 notes per minute (211680000 sc-per-1/4) P@63565618232/356:960/81|4|960
0x50d000576060 80.8333 1/4 notes per minute (209497720 sc-per-1/4) P@63671458232/357:0/82|1|0
0x50d000576130 81.6668 1/4 notes per minute (207359752 sc-per-1/4) P@63776207092/357:960/82|1|960
0x50d000576200 82.5001 1/4 notes per minute (205265249 sc-per-1/4) P@63879886968/358:0/82|2|0
0x50d000576880 83.3333 1/4 notes per minute (203212800 sc-per-1/4) P@63982519593/358:960/82|2|960
0x50d0005763a0 84.1667 1/4 notes per minute (201200711 sc-per-1/4) P@64084125993/359:0/82|3|0
0x50d000576470 85 1/4 notes per minute (199228136 sc-per-1/4) P@64184726349/359:960/82|3|960
0x50d000576540 85.8333 1/4 notes per minute (197293945 sc-per-1/4) P@64284340417/360:0/82|4|0
0x50d000576610 86.6668 1/4 notes per minute (195396728 sc-per-1/4) P@64382987390/360:960/82|4|960
0x50d0005766e0 87.5 1/4 notes per minute (193535919 sc-per-1/4) P@64480685754/361:0/83|1|0
0x50d0005767b0 88.3334 1/4 notes per minute (191710109 sc-per-1/4) P@64577453714/361:960/83|1|960
0x50d001813220 89.1667 1/4 notes per minute (189918449 sc-per-1/4) P@64673308769/362:0/83|2|0
0x50d000576950 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@64768267994/362:960/83|2|960
0x50d000576a20 92.5001 1/4 notes per minute (183074412 sc-per-1/4) P@64862347900/363:0/83|3|0
0x50d0005796d0 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@64953885106/363:960/83|3|960
0x50d001813560 97.5001 1/4 notes per minute (173685980 sc-per-1/4) P@65043013394/364:0/83|4|0
0x50d001812ee0 100 1/4 notes per minute (169344000 sc-per-1/4) P@65129856384/364:960/83|4|960
0x50d001812fb0 95.0001 1/4 notes per minute (178256575 sc-per-1/4) P@75375168384/425:0/99|1|0
0x50d001813080 90.0001 1/4 notes per minute (188159812 sc-per-1/4) P@75464296672/425:960/99|1|960
0x50d001813150 85 1/4 notes per minute (199228136 sc-per-1/4) P@75558376578/426:0/99|2|0
0x50d0018140c0 80 1/4 notes per minute (211680000 sc-per-1/4) P@75657990646/426:960/99|2|960
0x50d0018132f0 75 1/4 notes per minute (225792000 sc-per-1/4) P@75763830646/427:0/99|3|0
0x50d0018133c0 70.0001 1/4 notes per minute (241919758 sc-per-1/4) P@75876726646/427:960/99|3|960
0x50d001813490 65.0001 1/4 notes per minute (260528970 sc-per-1/4) P@75997686525/428:0/99|4|0
0x50d001813630 60 1/4 notes per minute (282240000 sc-per-1/4) P@76127951010/428:960/99|4|960
... meters...
0x508001a4dfa0 4/4 P@0/0:0/1|1|0
0x508001a4e320 12/8 P@1128960000/8:0/3|1|0
0x508001a4e3a0 2/4 P@7902713232/44:0/9|1|0
0x508001a4e420 5/4 P@9031673232/46:0/10|1|0
0x508001a4e4a0 4/4 P@9878393232/51:0/11|1|0
0x508001a4e520 12/8 P@49166201232/283:0/69|1|0
0x508001a4e5a0 4/4 P@61785129063/349:0/80|1|0
... bartimes...
... all points ...
0x50d0019bdb68 P@0/0:0/1|1|0 Tempo
0x508001a4dfc0 P@0/0:0/1|1|0 Meter
0x508001a4e340 P@1128960000/8:0/3|1|0 Meter
0x50d000574b88 P@1128960000/8:0/3|1|0 Tempo
0x508001a4e3c0 P@7902713232/44:0/9|1|0 Meter
0x50d000574c58 P@7902713232/44:0/9|1|0 Tempo
0x508001a4e440 P@9031673232/46:0/10|1|0 Meter
0x50d000574d28 P@9031673232/46:0/10|1|0 Tempo
0x508001a4e4c0 P@9878393232/51:0/11|1|0 Meter
0x508001a4e540 P@49166201232/283:0/69|1|0 Meter
0x50d000574df8 P@49166201232/283:0/69|1|0 Tempo
0x50d000574ec8 P@61020269388/346:0/79|7|0 Tempo
0x50d000574f98 P@61121370155/346:960/79|8|0 Tempo
0x50d000575068 P@61230624271/347:0/79|9|0 Tempo
0x50d0005c51b8 P@61349462129/347:960/79|10|0 Tempo
0x50d000575208 P@61479726614/348:0/79|11|0 Tempo
0x50d0005752d8 P@61623849083/348:960/79|12|0 Tempo
0x508001a4e5c0 P@61785129063/349:0/80|1|0 Meter
0x50d0005753a8 P@61785129063/349:0/80|1|0 Tempo
0x50d000575478 P@61934002902/349:960/80|1|960 Tempo
0x50d000575548 P@62072242784/350:0/80|2|0 Tempo
0x50d000575618 P@62201266683/350:960/80|2|960 Tempo
0x50d0005756e8 P@62322226562/351:0/80|3|0 Tempo
0x50d000575958 P@62441763387/351:960/80|3|960 Tempo
0x50d000575888 P@62559910321/352:0/80|4|0 Tempo
0x50d000575af8 P@62676699258/352:960/80|4|960 Tempo
0x50d000575a28 P@62792160961/353:0/81|1|0 Tempo
0x50d000575f08 P@62906325348/353:960/81|1|960 Tempo
0x50d000575bc8 P@63019221348/354:0/81|2|0 Tempo
0x50d000575c98 P@63130876621/354:960/81|2|960 Tempo
0x50d000575d68 P@63241318262/355:0/81|3|0 Tempo
0x50d000575e38 P@63350572378/355:960/81|3|960 Tempo
0x50d000576318 P@63458664230/356:0/81|4|0 Tempo
0x50d00046c408 P@63565618232/356:960/81|4|960 Tempo
0x50d0005760a8 P@63671458232/357:0/82|1|0 Tempo
0x50d000576178 P@63776207092/357:960/82|1|960 Tempo
0x50d000576248 P@63879886968/358:0/82|2|0 Tempo
0x50d0005768c8 P@63982519593/358:960/82|2|960 Tempo
0x50d0005763e8 P@64084125993/359:0/82|3|0 Tempo
0x50d0005764b8 P@64184726349/359:960/82|3|960 Tempo
0x50d000576588 P@64284340417/360:0/82|4|0 Tempo
0x50d000576658 P@64382987390/360:960/82|4|960 Tempo
0x50d000576728 P@64480685754/361:0/83|1|0 Tempo
0x50d0005767f8 P@64577453714/361:960/83|1|960 Tempo
0x50d001813268 P@64673308769/362:0/83|2|0 Tempo
0x50d000576998 P@64768267994/362:960/83|2|960 Tempo
0x50d000576a68 P@64862347900/363:0/83|3|0 Tempo
0x50d000579718 P@64953885106/363:960/83|3|960 Tempo
0x50d0018135a8 P@65043013394/364:0/83|4|0 Tempo
0x50d001812f28 P@65129856384/364:960/83|4|960 Tempo
0x50d001812ff8 P@75375168384/425:0/99|1|0 Tempo
0x50d0018130c8 P@75464296672/425:960/99|1|960 Tempo
0x50d001813198 P@75558376578/426:0/99|2|0 Tempo
0x50d001814108 P@75657990646/426:960/99|2|960 Tempo
0x50d001813338 P@75763830646/427:0/99|3|0 Tempo
0x50d001813408 P@75876726646/427:960/99|3|960 Tempo
0x50d0018134d8 P@75997686525/428:0/99|4|0 Tempo
0x50d001813678 P@76127951010/428:960/99|4|960 Tempo
------------


SMF::end write with for export = 0
SMF::end write with for export = 0
paths done, cancel = 0
for t2-1.mid source length appears to be b816000
SMF::end write with for export = 0
SMF::end write with for export = 0
locate to 168000 took 2208 usecs for 2 tracks = 1104 per track
locate to 192000 took 2941 usecs for 2 tracks = 1470 per track
#8

For what it’s worth, using a fresh build of Ardour9.8.93 (built using 9.8-93-g460ea8c013 and GCC version 16.2.1 20260810) I now only get :

[1]    544431 segmentation fault (core dumped)  ardour9
#9

I found another bug.
The BBT maker doesn’t have effect after adding it, it does after moving it…
Then there is also the issue that time-signature changes from your lilypond file are not imported …

Now that you build it from source, could you get a backtrace?

Perhaps there is some additional condition and/or preference that is relevant?

#10

In my case they are imported and work quite well. 12/8, 2/4 at bar 7, 5/4 at bar 8, etc. All the tempo changes are there as well (multiple accel., decel., etc).

Yeah of course ! I’ll get to it.

1 Like
#11

Very rough output I suppose but this is what I have so far :

Thread 1 "ArdourGUI" received signal SIGSEGV, Segmentation fault.
0x00007ffff7e4d252 in Temporal::TempoMetric::TempoMetric (this=<optimized out>, t=..., m=..., this=<optimized out>, t=..., m=...)
    at ../libs/temporal/tempo.cc:790
790		_reftime = _tempo->map().reftime (t, m);

I’ll work on something better

#12 
(gdb) bt full
#0  0x00007ffff7e4d252 in Temporal::TempoMetric::TempoMetric (this=<optimized out>, t=..., m=..., this=<optimized out>, t=..., m=...)
    at ../libs/temporal/tempo.cc:790
No locals.
#1  0x00007ffff7e60623 in Temporal::TempoMap::metric_at (this=this@entry=0x55555d2b95d0, bbt=..., can_match=can_match@entry=true)
    at ../libs/temporal/tempo.cc:4332
        tp = 0x0
        mp = 0x0
#2  0x0000555556065cdc in Temporal::TempoMap::round_to_bar (this=0x55555d2b95d0, bbt=...) at ../libs/temporal/temporal/tempo.h:988
No locals.
#3  MiniTimeline::render (this=0x55555c582b08, ctx=...) at ../gtk2_ardour/mini_timeline.cc:612
        tmap = <optimized out>
        rounded = {<int62_t> = {v = std::atomic<long> = { 4611686018427387904 }, static flagbit_mask = 4611686018427387904, 
            static max = 4611686018427387903, static min = -2305843009213693952}, <No data fields>}
        when = <optimized out>
        xpos = <optimized out>
        lh = 7
        x0 = <optimized out>
        lw = -135806792
        y0 = <optimized out>
        i = 1
        cr = 0x55555824c7d0
        base = <optimized out>
        text = 2139062271
        scale = 1
        width = 249
        height = 56
        phead = 0
        lower = 0
        dot_left = 142
        xc = <optimized out>
        r = 3.0420931779055467e-310
        g = 8.8283602124080662e-319
        b = 4.635572878409408e-310
        a = 4.635576116742921e-310
--Type <RET> for more, q to quit, c to continue without paging--c
        left_edge_samples = <optimized out>
        right_edge_samples = <optimized out>
        tw = 32767
        th = -170748492
        marker_width = <optimized out>
        lm = <optimized out>
        ll = <optimized out>
        location_marker_sort = <optimized out>
        outside_left_marker = <optimized out>
        outside_right_marker = <optimized out>
        rightmost_marker_right_edge = <optimized out>
        leftmost_marker_left_edge = <optimized out>
        prior_cue_pos = <optimized out>
        prior_cue_idx = <optimized out>
        first_shown_cue_pos = <optimized out>
#4  0x00007ffff6c93bf5 in CairoWidget::on_expose_event (this=0x55555c582b08, ev=0x7fffffffce40)
    at ../libs/gtkmm2ext/cairo_widget.cc:212
        cr = {pCppObject_ = 0x55556e7c13e0, pCppRefcount_ = 0x55556e7e9850}
        expose_area = {x = 0, y = 0, width = 249, height = 56}
#5  0x00007ffff6a3e278 in Gtk::Widget_Class::expose_event_callback (self=0x55555bedbaa0, p0=0x7fffffffce40)
    at ../libs/tk/ytkmm/widget.cc:4596
        obj = 0x55555c582b08
        obj_base = <optimized out>
        base = <optimized out>
#6  0x00007ffff638c16c in _gtk_marshal_BOOLEAN__BOXED (closure=0x5555570d6760, return_value=0x7fffffffc970, 
    n_param_values=<optimized out>, param_values=0x7fffffffca00, invocation_hint=<optimized out>, marshal_data=<optimized out>)
    at ../libs/tk/ytk/gtkmarshalers.c:84
        cc = 0x5555570d6760
        data1 = <optimized out>
        data2 = <optimized out>
        callback = <optimized out>
        v_return = <optimized out>
        __func__ = "_gtk_marshal_BOOLEAN__BOXED"
#7  0x00007ffff5cb0bcc in g_closure_invoke (closure=0x5555570d6760, return_value=0x7fffffffc970, n_param_values=2, 
    param_values=0x7fffffffca00, invocation_hint=0x7fffffffc950) at ../glib/gobject/gclosure.c:916
        marshal = 0x7ffff5cb5e80 <g_type_class_meta_marshal>
        marshal_data = 0x188
        in_marshal = 0
        reffed_flags = {flags = {ref_count = 2, meta_marshal_nouse = 0, n_guards = 0, n_fnotifiers = 0, n_inotifiers = 0, 
            in_inotify = 0, floating = 0, derivative_flag = 0, in_marshal = 0, is_invalid = 0}, closure = {ref_count = 2, 
            meta_marshal_nouse = 0, n_guards = 0, n_fnotifiers = 0, n_inotifiers = 0, in_inotify = 0, floating = 0, 
            derivative_flag = 0, in_marshal = 0, is_invalid = 0, marshal = 0x7ffff5cb5e80 <g_type_class_meta_marshal>, 
            data = 0x7fffffffc970, notifiers = 0x0}, atomic_int = 2}
        real_closure = 0x5555570d6740
        __func__ = "g_closure_invoke"
#8  0x00007ffff5cd0d59 in signal_emit_unlocked_R (node=node@entry=0x7fffffffcb40, detail=detail@entry=0, 
    instance=instance@entry=0x55555bedbaa0, emission_return=emission_return@entry=0x7fffffffcbc0, 
    instance_and_params=instance_and_params@entry=0x7fffffffca00) at ../glib/gobject/gsignal.c:3969
        accumulator = <optimized out>
        emission = {next = 0x0, instance = 0x55555bedbaa0, ihint = {signal_id = 41, detail = 0, 
            run_type = (G_SIGNAL_RUN_LAST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, state = EMISSION_RUN, chain_type = 93825031548896}
        class_closure = <optimized out>
        hlist = <optimized out>
        handler_list = 0x0
        return_accu = <optimized out>
        accu = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, 
              v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, 
              v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = <optimized out>
        max_sequential_handler_number = <optimized out>
        return_value_altered = <optimized out>
        n_params = <optimized out>
        __func__ = <optimized out>
#9  0x00007ffff5cd2294 in signal_emit_valist_unlocked (instance=instance@entry=0x55555bedbaa0, signal_id=signal_id@entry=41, 
    detail=detail@entry=0, var_args=var_args@entry=0x7fffffffcca0) at ../glib/gobject/gsignal.c:3574
        return_value = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, 
              v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
              v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        error = 0x0
        rtype = 20
        static_scope = 0
        instance_and_params = <optimized out>
        param_values = <optimized out>
        node = <optimized out>
        i = <optimized out>
        node_copy = <optimized out>
        __func__ = "signal_emit_valist_unlocked"
#10 0x00007ffff5cd2cd9 in g_signal_emit_valist (instance=0x55555bedbaa0, signal_id=41, detail=0, 
    var_args=var_args@entry=0x7fffffffcca0) at ../glib/gobject/gsignal.c:3304
No locals.
#11 0x00007ffff5cd2d94 in g_signal_emit (instance=instance@entry=0x55555bedbaa0, signal_id=<optimized out>, detail=detail@entry=0)
    at ../glib/gobject/gsignal.c:3624
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffffffcd80, reg_save_area = 0x7fffffffccc0}}
#12 0x00007ffff6559c4f in gtk_widget_event_internal (widget=0x55555bedbaa0, event=0x7fffffffce40) at ../libs/tk/ytk/gtkwidget.c:5058
        signal_num = <optimized out>
        return_val = 0
#13 0x00007ffff63960e5 in IA__gtk_main_do_event (event=0x7fffffffce40) at ../libs/tk/ytk/gtkmain.c:1579
        event_widget = 0x55555bedbaa0
        grab_widget = 0x55555bedbaa0
        window_group = 0x555558273d80
        rewritten_event = <optimized out>
        tmp_list = <optimized out>
        __func__ = <optimized out>
#14 0x00007ffff676b2ca in _gdk_window_process_updates_recurse (window=0x55555bae4ff0, expose_region=<optimized out>)
    at ../libs/tk/ydk/gdkwindow.c:5491
        event = {type = GDK_EXPOSE, any = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000'}, expose = {
            type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', area = {x = 0, y = 0, width = 249, height = 56}, 
            region = 0x55556e7c2cd0, count = 0}, no_expose = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000'}, 
          visibility = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', state = GDK_VISIBILITY_UNOBSCURED}, 
          motion = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', time = 0, x = 5.2837695195035281e-312, 
            y = 2.7667676167109806e-322, axes = 0x55556e7c2cd0, state = 0, is_hint = 32767, device = 0x0, 
            x_root = 2.0859855223926015e-309, y_root = 4.6355821563235088e-310}, button = {type = GDK_EXPOSE, 
            window = 0x55555bae4ff0, send_event = 0 '\000', time = 0, x = 5.2837695195035281e-312, y = 2.7667676167109806e-322, 
            axes = 0x55556e7c2cd0, state = 0, button = 32767, device = 0x0, x_root = 2.0859855223926015e-309, 
            y_root = 4.6355821563235088e-310}, touch = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', time = 0, 
            x = 5.2837695195035281e-312, y = 2.7667676167109806e-322, state = 1853631696, sequence = 21845, flags = 0, 
            deviceid = 32767, x_root = 0, y_root = 2.0859855223926015e-309}, scroll = {type = GDK_EXPOSE, window = 0x55555bae4ff0, 
            send_event = 0 '\000', time = 0, x = 5.2837695195035281e-312, y = 2.7667676167109806e-322, state = 1853631696, 
            direction = 21845, device = 0x7fff00000000, x_root = 0, y_root = 2.0859855223926015e-309, has_deltas = 1666801984, 
            delta_x = 4.6355913864424896e-310, delta_y = 4.6355839184351166e-310}, key = {type = GDK_EXPOSE, 
            window = 0x55555bae4ff0, send_event = 0 '\000', time = 0, state = 0, keyval = 249, length = 56, 
            string = 0x55556e7c2cd0 "\001", hardware_keycode = 0, group = 0 '\000', is_modifier = 0}, crossing = {type = GDK_EXPOSE, 
            window = 0x55555bae4ff0, send_event = 0 '\000', subwindow = 0xf900000000, time = 56, x = 4.635591386937741e-310, 
            y = 6.9531436082559078e-310, x_root = 0, y_root = 2.0859855223926015e-309, mode = 1666801984, detail = 21845, 
            focus = 1853621672, state = 21845}, focus_change = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', 
            in = 25966}, configure = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', x = 0, y = 0, width = 249, 
            height = 56}, property = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', atom = 0xf900000000, 
            time = 56, state = 0}, selection = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', 
            selection = 0xf900000000, target = 0x38, property = 0x55556e7c2cd0, time = 0, requestor = 32767}, owner_change = {
            type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', owner = 0, reason = GDK_OWNER_CHANGE_NEW_OWNER, 
            selection = 0x38, time = 1853631696, selection_time = 21845}, proximity = {type = GDK_EXPOSE, window = 0x55555bae4ff0, 
            send_event = 0 '\000', time = 0, device = 0xf900000000}, client = {type = GDK_EXPOSE, window = 0x55555bae4ff0, 
            send_event = 0 '\000', message_type = 0xf900000000, data_format = 56, data = {
              b = "\320,|nUU\000\000\000\000\000\000\377\177\000\000\000\000\000", s = {11472, 28284, 21845, 0, 0, 0, 32767, 0, 0, 
                0}, l = {93825414212816, 140733193388032, 0, 422208170098690, 93825227383104}}}, dnd = {type = GDK_EXPOSE, 
            window = 0x55555bae4ff0, send_event = 0 '\000', context = 0xf900000000, time = 56, x_root = 0, y_root = 0}, 
          window_state = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', changed_mask = 0, 
            new_window_state = 0}, setting = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', 
            action = GDK_SETTING_ACTION_NEW, name = 0xf900000000 <error: Cannot access memory at address 0xf900000000>}, 
          grab_broken = {type = GDK_EXPOSE, window = 0x55555bae4ff0, send_event = 0 '\000', keyboard = 0, implicit = 0, 
            grab_window = 0x38}}
        private = <optimized out>
        child = <optimized out>
        child_region = <optimized out>
        r = {x = 1666802144, y = 21845, width = -160109735, height = 32767}
        l = <optimized out>
        children = 0x0
#15 _gdk_window_process_updates_recurse (window=window@entry=0x55555bae4ff0, expose_region=expose_region@entry=0x55556e7c2cd0)
    at ../libs/tk/ydk/gdkwindow.c:5406
        private = 0x55555bae4ff0
        child = <optimized out>
        child_region = <optimized out>
        r = <optimized out>
        l = <optimized out>
        children = <optimized out>
        event = <optimized out>
#16 0x00007ffff676b100 in _gdk_window_process_updates_recurse (window=0x55555ce603e0, expose_region=<optimized out>)
    at ../libs/tk/ydk/gdkwindow.c:5455
        private = <optimized out>
        child = 0x55555bae4ff0
        child_region = <optimized out>
        r = {x = 811, y = 1, width = 249, height = 56}
        l = 0x5555657997c0
        children = 0x55556e7c4c60
#17 _gdk_window_process_updates_recurse (window=window@entry=0x55555ce603e0, expose_region=expose_region@entry=0x5555656eb5b0)
    at ../libs/tk/ydk/gdkwindow.c:5406
        private = 0x55555ce603e0
        child = <optimized out>
        child_region = <optimized out>
        r = <optimized out>
        l = <optimized out>
        children = <optimized out>
        event = <optimized out>
#18 0x00007ffff676b100 in _gdk_window_process_updates_recurse (window=0x55555ce60200, expose_region=<optimized out>)
    at ../libs/tk/ydk/gdkwindow.c:5455
        private = <optimized out>
        child = 0x55555ce603e0
        child_region = <optimized out>
        r = {x = 2, y = 2, width = 1229, height = 58}
        l = 0x5555654e8300
        children = 0x55556e7e92a0
#19 _gdk_window_process_updates_recurse (window=window@entry=0x55555ce60200, expose_region=expose_region@entry=0x55556d881b60)
    at ../libs/tk/ydk/gdkwindow.c:5406
        private = 0x55555ce60200
        child = <optimized out>
        child_region = <optimized out>
        r = <optimized out>
        l = <optimized out>
        children = <optimized out>
        event = <optimized out>
#20 0x00007ffff676b100 in _gdk_window_process_updates_recurse (window=0x55555d1e9230, expose_region=<optimized out>)
    at ../libs/tk/ydk/gdkwindow.c:5455
        private = <optimized out>
        child = 0x55555ce60200
        child_region = <optimized out>
        r = {x = 0, y = 28, width = 1362, height = 683}
        l = 0x55556e7c1a60
        children = 0x55556e7c1a60
#21 _gdk_window_process_updates_recurse (window=0x55555d1e9230, expose_region=0x55556d81d1a0) at ../libs/tk/ydk/gdkwindow.c:5406
        private = 0x55555d1e9230
        child = <optimized out>
        child_region = <optimized out>
        r = <optimized out>
        l = <optimized out>
        children = <optimized out>
        event = <optimized out>
#22 0x00007ffff676f6b2 in gdk_window_process_updates_internal (window=0x55555d1e9230) at ../libs/tk/ydk/gdkwindow.c:5658
        update_area = 0x55556e7c4600
        expose_region = <optimized out>
        remove = <optimized out>
        end_implicit = <optimized out>
        move = <optimized out>
        l = <optimized out>
        prev = <optimized out>
        private = 0x55555d1e9230
        impl_iface = <optimized out>
        save_region = <optimized out>
        clip_box = <optimized out>
        iteration = <optimized out>
#23 0x00007ffff676fd11 in IA__gdk_window_process_all_updates () at ../libs/tk/ydk/gdkwindow.c:5764
        private = 0x55555d1e9230
        old_update_windows = 0x55556e77fd50
        tmp_list = 0x55556e77fd50
        in_process_all_updates = 1
        got_recursive_update = 0
#24 0x00007ffff676fded in gdk_window_update_idle (data=<optimized out>) at ../libs/tk/ydk/gdkwindow.c:5375
No locals.
#25 0x00007ffff672c52b in gdk_threads_dispatch (data=0x5555652df5a0) at ../libs/tk/ydk/gdk.c:535
        dispatch = 0x5555652df5a0
        ret = 0
#26 0x00007ffff5fcec76 in g_main_dispatch (context=0x555556b5a8c0) at ../glib/glib/gmain.c:3591
        user_data = 0x5555652df5a0
        callback = 0x7ffff672c4f0 <gdk_threads_dispatch>
        gaig_temp = <optimized out>
        gaig_temp = <optimized out>
        cb_data = 0x55556e7c2990
        need_destroy = <optimized out>
        dispatch = 0x7ffff5fcaea0 <g_idle_dispatch>
        prev_source = 0x0
        was_in_call = 0
        cb_funcs = 0x7ffff60ce3a0 <g_source_callback_funcs>
        begin_time_nsec = 334617301306582
        source = 0x55556e7d5cd0
        gaig_temp = <optimized out>
        current = 0x555558118c50
        i = 0
        __func__ = "g_main_dispatch"
#27 0x00007ffff5fd0ed7 in g_main_context_dispatch_unlocked (context=0x555556b5a8c0) at ../glib/glib/gmain.c:4451
No locals.
#28 g_main_context_iterate_unlocked (context=0x555556b5a8c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at ../glib/glib/gmain.c:4516
        max_priority = 120
        timeout_usec = 0
        some_ready = 1
        nfds = 3
        allocated_nfds = <optimized out>
        fds = <optimized out>
        begin_time_nsec = <optimized out>
#29 0x00007ffff5fd1217 in g_main_loop_run (loop=0x55555a3c3120) at ../glib/glib/gmain.c:4721
        self = <optimized out>
        __func__ = "g_main_loop_run"
#30 0x00007ffff6395093 in IA__gtk_main () at ../libs/tk/ytk/gtkmain.c:1221
        tmp_list = <optimized out>
        functions = 0x0
        init = <optimized out>
        loop = 0x55555a3c3120
#31 0x00007ffff6ca6eec in Gtkmm2ext::UI::run (this=this@entry=0x5555572e1f80, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:319
No locals.
#32 0x0000555555a66978 in main (argc=<optimized out>, argv=<optimized out>) at ../gtk2_ardour/main.cc:502
No locals.
#13

Is this what you expected from me @x42 ?

#14

Yes, thank you. I handed if over to @paul, who is now working on it.

#15

This should be fixed in git master/the next nightly build.

I do note, however, that the metronome is wrong for 12/8, and then becomes even more wrong around 7|1|0. I think that part of this is a known issue, but the change near 7|1 seems like something else.

Thanks for discovering this. I had not considered the workflow you are using, even though it makes perfect sense, and the code needed a couple of tweaks to avoid crashing.

#16

From git log -p
I only see c4e09c from @x42 that could be related.
My HEAD is at 7abcc0

Have I missed something ?

Can you share the commit in question ?

#17

d955ce03 and f2fc954b4d2c7

I hadn’t pushed :slight_smile:

#18

I was just about to add a snaky “¿git push? (wink wink)” but my arrogant meter alarm went off and got inhibited…

Currently building → Coffee time !