I have a project in Ardour 4.7 which crashes 4 out of 5 times during export, at seemingly random places. I have tried to start it from command line, to get some more info, and this is the result:
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ardour4
bind txt domain [gtk2_ardour4] to /opt/ardour4/share/locale
Ardour4.7.0 (built using 4.7 and GCC version 4.4.7)
ardour: [INFO]: Your system is configured to limit Ardour to only 4096 open files
ardour: [INFO]: Loading system configuration file /opt/ardour4/etc/system_config
Loading user configuration file /home/etcetera/.config/ardour4/config
CPU vendor: AuthenticAMD
ardour: [INFO]: AVX-capable processor
ardour: [INFO]: CPU brand: AMD FX(tm)-8320 Eight-Core Processor
ardour: [INFO]: Using SSE optimized routines
ardour: [INFO]: Loading default ui configuration file /opt/ardour4/etc/default_ui_config
ardour: [INFO]: Loading user ui configuration file /home/etcetera/.config/ardour4/ui_config
ardour: [INFO]: Loading color file /opt/ardour4/etc/dark.colors
ardour: [INFO]: Loading ui configuration file /opt/ardour4/etc/clearlooks.rc
ardour: [INFO]: Loading ui configuration file /opt/ardour4/etc/clearlooks.rc
EngineControl::set_state
Found 3 along /home/etcetera/.config/ardour4/templates:/opt/ardour4/share/templates
run dialog
Announcement is: Version 5.3 has been released. Update at http://ardour.org/download
Error opening file /home/etcetera/.lv2/obxd_bank.tar.bz2/manifest.ttl (Not a directory)
lilv_world_load_file(): error: Error loading file `file:///home/etcetera/.lv2/obxd_bank.tar.bz2/manifest.ttl'
lilv_world_load_bundle(): error: Error reading file:///home/etcetera/.lv2/obxd_bank.tar.bz2/manifest.ttl
Scanning folders for bundled LV2s: /opt/ardour4/lib/LV2
Error opening file /home/etcetera/.lv2/obxd_bank.tar.bz2/manifest.ttl (Not a directory)
lilv_world_load_file(): error: Error loading file `file:///home/etcetera/.lv2/obxd_bank.tar.bz2/manifest.ttl'
lilv_world_load_bundle(): error: Error reading file:///home/etcetera/.lv2/obxd_bank.tar.bz2/manifest.ttl
Set cursor set to default
Set buffering params to 262144|131072|10|10
Set buffering params to 262144|131072|10|10
Skip explicit buffer seconds, preset in use
Skip explicit buffer seconds, preset in use
*** Error in `/opt/ardour4/bin/ardour-4.7.0': malloc(): memory corruption (fast): 0x00007f2e08013050 ***
Aborted (core dumped)
Another observation. After the crash, jackd seems to go mad, maxing out one CPU core until I stop it.
/Frank