towards fixing #6238 and #6096.
GUI thread:
#2 Glib::Threads::Mutex::Lock::Lock
#3 Evoral::ControlList::eval
#4 Evoral::Control::get_double
#5 ARDOUR::AutomationControl::get_value
#6 ProcessorEntry::Control::control_changed
..
#15 PBD::Timer::timeout_handler
at the same time: Audio Thread (try-lock, fails)
#0 Evoral::Curve::rt_safe_get_vector
#1 ARDOUR::Amp::setup_gain_automation
#2 ARDOUR::Route::process_output_buffers
Due to the failed try-lock.. AMP::_apply_gain_automation
is false. and Amp::run() uses a different gain factor.
-> click.
Robin Gareus
96ce9c304e