Debuggin gets me:
GNU gdb 6.7.1-debian
…
This GDB was configured as “x86_64-linux-gnu”…
Using host libthread_db library “/lib/libthread_db.so.1”.
(gdb) run
Starting program: /usr/local/src/Audio/ardour-2.7/gtk2_ardour/ardour-2.7
[Thread debugging using libthread_db enabled]
Ardour/GTK 2.7
(built using 4225 and GCC version 4.3.1)
…
[New Thread 0x7f48f9deb7a0 (LWP 2153)]
loading default ui configuration file gtk2_ardour/ardour2_ui_default.conf
loading user ui configuration file /home/music/.ardour2/ardour2_ui.conf
Loading ui configuration file gtk2_ardour/ardour2_ui_dark.rc
(ardour-2.7:2153): Gtk-WARNING **: Unable to locate theme engine in module_path: “clearlooks”,
ardour: [INFO]: Ardour will be limited to 1024 open files
loading system configuration file ./ardour_system.rc
loading user configuration file /home/music/.ardour2/ardour.rc
ardour: [INFO]: No H/W specific optimizations in use
[New Thread 0x40fc0950 (LWP 2156)]
[New Thread 0x417c1950 (LWP 2157)]
[New Thread 0x41fc2950 (LWP 2158)]
ardour: [INFO]: looking for control protocols in /home/music/.ardour2/surfaces/:/usr/local/lib64/ardour2/surfaces/
powermate: Opening of powermate failed - No such file or directory
ardour: [INFO]: Control protocol powermate not usable
ardour: [INFO]: Control surface protocol discovered: “Generic MIDI”
ardour: [INFO]: Control surface protocol discovered: “Mackie”
JACK COMMAND: /usr/local/bin/jackd -p 128 -R -P 60 -T -d alsa -n 2 -r 44100 -p 1024 -d hw:0,0
jackd 0.109.2
…
JACK compiled with POSIX SHM support.
loading driver …
apparent rate = 44100
creating alsa driver … hw:0,0|hw:0,0|1024|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 2 periods for playback
loading bindings from gtk2_ardour/mnemonic-us.bindings
[New Thread 0x42043950 (LWP 2167)]
[New Thread 0x420bda70 (LWP 2168)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x42043950 (LWP 2167)]
0x00007fff01fff534 in ?? ()
(gdb) subgraph starting at ardour timed out (subgraph_wait_fd=16, status = 0, state = Triggered)
**** alsa_pcm: xrun of at least 1228395677483.008 msecs
backtrace
#0 0x00007fff01fff534 in ?? ()
#1 0x00007fff01fff726 in gettimeofday ()
#2 0x00007f48f259c88a in gettimeofday () from /lib/libc.so.6
#3 0x00007f48f59b7f74 in jack_thread_wait (client=0x301f890, status=0) at client.c:1534
#4 0x00007f48f59b80cf in jack_client_thread (arg=) at client.c:1601
#5 0x00007f48f579afc7 in start_thread () from /lib/libpthread.so.0
#6 0x00007f48f25dd5ad in clone () from /lib/libc.so.6
#7 0x0000000000000000 in ?? ()
(gdb) quit
Maybe a problem in jack? But jack runs fine using exactly the command ardour uses.
Using that command to start jack and then starting ardour:
…
ardour: [INFO]: No H/W specific optimizations in use
[New Thread 0x4101a950 (LWP 2275)]
[New Thread 0x4181b950 (LWP 2276)]
[New Thread 0x4201c950 (LWP 2277)]
…
ardour: [INFO]: Control surface protocol discovered: “Mackie”
jackd 0.109.2
…
JACK compiled with POSIX SHM support.
loading driver …
apparent rate = 44100
creating alsa driver … hw:0,0|hw:0,0|1024|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 2 periods for playback
loading bindings from gtk2_ardour/mnemonic-us.bindings
[New Thread 0x4209d950 (LWP 2286)]
[New Thread 0x42117a70 (LWP 2287)]
/tmp/buildd/gdb-6.7.1/gdb/linux-nat.c:2129: internal-error: linux_nat_wait: Assertion `iterate_over_lwps (running_callback, NULL)’ failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) subgraph starting at ardour timed out (subgraph_wait_fd=16, status = 0, state = Triggered)
**** alsa_pcm: xrun of at least 1228395677483.008 msecs
jackd watchdog: timeout - killing jackd
Please answer y or n.
/tmp/buildd/gdb-6.7.1/gdb/linux-nat.c:2129: internal-error: linux_nat_wait: Assertion `iterate_over_lwps (running_callback, NULL)’ failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Any ideas?