Re: [fluid-dev] Proposal: FluidSynth tester program

[David Henningsson]

On 08/02/2012 07:45 AM, Aere Greenway wrote:
> David:
>
> I ran the test on a partition I was planning on replacing (to minimize
> risk to my other testing).
>
> A side-effect of that decision, is that it was done on a non-updated
> system.  In fact, the crash-report generated for it, indicated it wasn't
> reportable because of an obsolete version of libasound.so (or something
> like that).
>
> I didn't update it because updates on a 450 megahertz machine take a lot
> of time, and I was going to replace the partition anyway.
>
> It seemed to me (as I watched the build process) that it was complaining
> about jackd1 vs. jackd2.

Please verify that you're still running the jack version you expect. If 
the build process switched jack version for you, you can switch it back 
(just install the right version again). This is just because the 
development package is not switching as well as the library package in 
Debian. FluidSynth can run against either version.

> But when I went to get the listings of the
> build process, the file (written by abiword, which also had significant
> problems in this release) had somehow been garbled, and could not be
> read by Libre Office - so I lost my build listings!
>
> I am pretty sure the build process was what caused problems for
> qjackctl, because I only use that machine for testing, and the last
> thing I (most likely) did on it was the same test I was trying to run
> with the new fluidsynth.  I'm sure it was successful before, because I
> always run those tests on new systems.
>
> I did not manually copy any '.so' files.
>
> Here is what I was able to collect of the problem:
>
> address@hidden <mailto:address@hidden>:~$ gdb qjackctl
> GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
> Copyright (C) 2012 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i686-linux-gnu".
> For bug reporting instructions, please see:
> <http://bugs.launchpad.net/gdb-linaro/>...
> "/usr/bin/qjackctl": not in executable format: File format not recognized

Hrm, next time instead run "gdb /usr/lib/qjackctl/qjackctl.real", as 
qjackctl is a wrapper script. :-/

> (gdb)
>
> FROM QJACKCTL MESSAGES:
>
> 12:37:43.266 Patchbay deactivated.
> 12:37:43.361 Statistics reset.
> 12:37:43.659 ALSA connection change.
> 12:37:43.751 D-BUS: Service not available (org.jackaudio.service aka
> jackdbus).
> 12:37:43.828 JACK is starting...
> 12:37:43.831 /usr/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n2
> 12:37:43.905 ALSA connection graph change.
> 12:37:43.908 JACK was started with PID=1670.
> jackd 0.121.2
> Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn
> and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> JACK compiled with System V SHM support.
> loading driver ..
> apparent rate = 44100
> creating alsa driver ... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|32bit
> control device hw:0
> 12:37:48.293 Server configuration saved to "/home/aere/.jackdrc".
> 12:37:48.325 Statistics reset.
> 12:38:06.453 Client activated.
> cannot read result for request type 6 from server (Connection reset by peer)
> cannot read server event (Success)
> cannot continue execution of the processing graph (Bad file descriptor)
> cannot continue execution of the processing graph (Bad file descriptor)
> cannot continue execution of the processing graph (Bad file descriptor)
> cannot continue execution of the processing graph (Bad file descriptor)
> cannot continue execution of the processing graph (Bad file descriptor)
> cannot continue execution of the processing graph (Bad file descriptor)
>
> FROM CRASH REPORT (COPIED BY HAND):

A tip could be to take a photo with a digital camera / phone instead of 
hand-copying - it's up to you what you find simplest.

> jackd crashed with signal 7 in pa_shm_create_rw
>
> StacktraceTop
> pa_shm_create_rw() from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
> pa_mempool_new() from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
> pa_context_new_with_proplist() from /usr/lib/i386-linux-gnu/libpulse.so.0
> pa_context_new() from /usr/lib/i386-linux-gnu/libpulse.so.0
> conf_pulse_hook_load_if_running() from
> /usr/lib/i386-linux-gnu/alsa-lib/libasound_module_conf_pulse.so

This is related to alsa-plugins or pulseaudio, not fluidsynth. If 
upgrading *everything* is hard, you should try upgrading at least all 
packages beginning with "pulseaudio", "libpulse" or "libasound". I saw a 
Launchpad bug with the same stack trace, and the bug reporter said it 
was resolved with an update.

> Please be aware that I consider the testing (done on an Ubuntu
> partition) to have been successful.  I just wanted to find out if the
> increased overhead causes it to no longer work on my slowest machine.

Ok.

// David