Re: [Linuxsampler-devel] LV2 plugin crashing after loading it in Ardour

[Christian S. <sch...@li...>]

On Monday 26 January 2015 17:10:34 Fernanda Monteiro wrote:
> Hi Christian, thanks for the tip. I've just recompiled with debug symbols
> but I'm in doubt about how to backtrace it as a LV2 plugin, since if I run
> LinuxSampler prior to it, plugin will just fail due to can't bind to the
> right port anyway, so I can't have LS running before that in gdb. Any
> suggestions?

Same thing. Just that you start Ardour instead of LinuxSampler in the way 
described. However since LinuxSampler is then launched by Ardour as plugin, 
you must install LinuxSampler before launching Ardour. Compiling Ardour with 
debugging symbols turned on as well, is definitely recommended.

Another option (instead of starting Ardour with gdb) is enabling coredump 
output on your system:

	ulimit -c unlimited

Then you can run Ardour normally (without debugger). Once it crashes it will 
automatically write a core dump file to the local directory, which is 
essentially a memory dump of the Ardour process at the time when the crashed 
happened. You can then get the back trace like this:

	gdb /full/path/to/ardourbinary /full/path/to/coredumpfile
	bt

Both solutions usually yield the same result.

CU
Christian