linuxaudio.org

Am Donnerstag 24 Januar 2008 02:28:06 schrieb Dominic Sacré:

quoted text
> Hi Matthias,

>

> On Wednesday 23 January 2008 22:22:36 Matthias Schönborn wrote:

> > Only thing is, that klick gets segmentation faults a lot of the times -

> > I'm using it with ardour with transport enabled, and most of the times I

> > start the song in ardour, klick exits with a segmentation fault (core

> > dumped). Is there anything I can do about it?

>

> I can't reproduce that here... Could you please build a debug version of

> klick? To do this, edit the SConstruct file, and replace "-O2" with "-g" in

> line 8. Then build and install as usual.

>

> Before you start klick, run "ulimit -c unlimited" in the same shell. This

> will produce a core dump (named core or core.$PID) in the current directory

> when klick crashes. To inspect the core dump, run "gdb klick ". If

> you could send me the output of "thread apply all bt", that should help to

> find out what the problem is.

>

>

> Thanks,

>

>     Dominic

Hi Dominic,
I realised that when using 128 Frames per Period instead of 64, it works

perfectly. At least it did for like three hours yesterday evening. It's a

great tool for composing, I think!
See below for the output.
Viele Grüße

Matthias
(gdb) thread apply all bt
Thread 2 (process 5965):

#0  0xffffe410 in __kernel_vsyscall ()

#1  0xb7d05e96 in nanosleep () from /lib/tls/i686/cmov/libc.so.6

#2  0xb7d3fb3c in usleep () from /lib/tls/i686/cmov/libc.so.6

#3  0x0804ab80 in Klick::run (this=0x807a008) at klick.cc:174

#4  0x0804a8bb in main (argc=8, argv=0xbffc1784) at main.cc:39
Thread 1 (process 5968):

#0  0x08051ce6 in AudioInterface::process_mix_samples (this=0x807a138,

dest=0xb7c24000, src=0x807b8f8,

    length=2122, volume=1) at audio_interface.cc:197

#1  0x08051ef2 in AudioInterface::process_mix (this=0x807a138,

buffer=0xb7c13a00, nframes=64)

---Type  to continue, or q  to quit---

    at audio_interface.cc:181

#2  0x08051ff9 in AudioInterface::process_callback_ (nframes=64,

arg=0x807a138) at audio_interface.cc:139

#3  0xb7f81f09 in ?? () from /usr/lib/libjack.so.0

#4  0x00000040 in ?? ()

#5  0x0807a138 in ?? ()

#6  0x000003e8 in ?? ()

#7  0x00000003 in ?? ()

#8  0x00000000 in ?? ()

(gdb)
# Additionally, here's the jack message:
subgraph starting at qjackctl-5885 timed out (subgraph_wait_fd=20, status = 0,

state = Finished)

09:51:18.046 Audio connection graph change.

09:51:18.046 XRUN callback (1).

**** alsa_pcm: xrun of at least 1998.404 msecs

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