[Gambas-user] A "Callback" function doesn't work.

[Jussi Lahtinen]

1. Have you confirmed that the example made in C really works?

2. You should confirm size of jack_default_audio_sample_t. Mistakes with
memcpy doesn't always lead to SGN11.
Since memory area you are writing over, may be owned by the program doing
the mistake. That often causes random
behaviour.

3. Cannot lock down 82274202 byte memory area (Cannot allocate memory) ??


Jussi


On Tue, Jul 16, 2013 at 1:43 PM, Ru Vuott <vuott at ...325...> wrote:

> Hello,
>
> I do not understand why, but today I re-tried the test, and i received
> strangly these different info:
>
> *********************
> GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu
> Copyright (C) 2013 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 "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/bin/gbx3...done.
> (gdb) run
> Starting program: /usr/bin/gbx3
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> [New Thread 0x7ffff7e80700 (LWP 2563)]
> [New Thread 0x7fffeca9b700 (LWP 2564)]
> Cannot lock down 82274202 byte memory area (Cannot allocate memory)
> [New Thread 0x7fffeca03700 (LWP 2565)]
> 0
> *** stack smashing detected ***: traJk terminated
>
> Program received signal SIGABRT, Aborted.
> 0x00007ffff711b037 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> (gdb) bt
> #0  0x00007ffff711b037 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> #1  0x00007ffff711e698 in abort () from /lib/x86_64-linux-gnu/libc.so.6
> #2  0x00007ffff71585ab in ?? () from /lib/x86_64-linux-gnu/libc.so.6
> #3  0x00007ffff71f55cc in __fortify_fail ()
>    from /lib/x86_64-linux-gnu/libc.so.6
> #4  0x00007ffff71f5570 in __stack_chk_fail ()
>    from /lib/x86_64-linux-gnu/libc.so.6
> #5  0x00007ffff5092fdc in ?? () from
> /usr/lib/x86_64-linux-gnu/libQtGui.so.4
> #6  0x00007fffffffdf40 in ?? ()
> #7  0x00007fffffffe330 in ?? ()
> #8  0x000000000079cc80 in ?? ()
> #9  0x00000000007254c0 in ?? ()
> #10 0x00007fffdc000fd0 in ?? ()
> #11 0x00007fffffffdf20 in ?? ()
> #12 0x000000000079cc80 in ?? ()
> #13 0x00000000007254c0 in ?? ()
> #14 0x00007fffffffdfa0 in ?? ()
> #15 0x00007fffffffdf20 in ?? ()
> #16 0x00007ffff50248ec in QApplicationPrivate::notify_helper(QObject*,
> QEvent*)
>     () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
> #17 0x00007ffff502725b in QApplication::notify(QObject*, QEvent*) ()
>    from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
> #18 0x00007fffffffe008 in ?? ()
> ---Type <return> to continue, or q <return> to quit---
> #19 0x00007fffffffdfe0 in ?? ()
> #20 0x0000000000000000 in ?? ()
>
> *************
>
> bha !
>
> Regards
> vuott
>
>
> --------------------------------------------
> Lun 15/7/13, Ru Vuott <vuott at ...325...> ha scritto:
>
>  Oggetto: Re: [Gambas-user] A "Callback" function doesn't work.
>  A: "mailing list for gambas users" <gambas-user at lists.sourceforge.net>
>  Data: Lunedì 15 luglio 2013, 19:55
>
>  > libfontconfig seems to make
>  problems.
>  > But I don't know about this library either...
>
>  Uhmmm... maybe is this ?
>  http://www.freedesktop.org/wiki/Software/fontconfig/
>
>
>
>
>
>  --------------------------------------------
>  Lun 15/7/13, Tobias Boege <taboege at ...626...>
>  ha scritto:
>
>   Oggetto: Re: [Gambas-user] A "Callback" function doesn't
>  work.
>   A: "mailing list for gambas users" <gambas-user at lists.sourceforge.net>
>   Data: Lunedì 15 luglio 2013, 19:40
>
>   On Mon, 15 Jul 2013, Ru Vuott wrote:
>   > Hello,
>   >
>   > well, I did the backtrace.
>   >
>   > Here I attach 2 text files:
>   >
>   > - test WITH Real-Time ENABLED Jack option;
>   >
>   > - test Real-Time NO ENABLED Jack option.
>   >
>
>   I'm sorry for your trouble - looks like I can't read
>   anything meaningful out
>   of these backtraces. Except maybe that libfontconfig seems
>   to make problems.
>   But I don't know about this library either...
>
>   Regards,
>   Tobi
>
>
> ------------------------------------------------------------------------------
>   See everything from the browser to the database with
>   AppDynamics
>   Get end-to-end visibility with application monitoring from
>   AppDynamics
>   Isolate bottlenecks and diagnose root cause in seconds.
>   Start your free trial of AppDynamics Pro today!
>
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>   _______________________________________________
>   Gambas-user mailing list
>   Gambas-user at lists.sourceforge.net
>   https://lists.sourceforge.net/lists/listinfo/gambas-user
>
>
>
>  ------------------------------------------------------------------------------
>  See everything from the browser to the database with
>  AppDynamics
>  Get end-to-end visibility with application monitoring from
>  AppDynamics
>  Isolate bottlenecks and diagnose root cause in seconds.
>  Start your free trial of AppDynamics Pro today!
>
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>  _______________________________________________
>  Gambas-user mailing list
>  Gambas-user at lists.sourceforge.net
>  https://lists.sourceforge.net/lists/listinfo/gambas-user
>
>
>
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>