Dominique Michel wrote:
>> While all the above functions work, MIDI playback whilst there is
>> significant hard disk activity causes a complete system lock-up )-: (see
>> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=952 ).
>>
>> Can anyone suggest a known good sound card for hardware MIDI playback,
>> mic and line in that doesn't cause a system lock-up like reported with
>> the EMU10K1 based cards?
>>
> An emu10k1 sound card must do it just fine, I think at you have a hardware
> problem or a bad configuration.
> > You have 256Mb ram, how big is the soundfont?
-rwxr-xr-x 1 root root 7557598 2005-12-26 13:03 8mbgmsfx.sf2
The sound font loads onto the sound card, so isn't resident in main RAM.
> Harddisk activity can come from swaping, so which wm are you using?
I've reproduced the problem under kwin, twm and no window manager.
> I would use a light one as fluxbox or xfwm with so little ram.
> Are you sure at the program you are using is configured to use the
> synth in the emu10k1 and not a softsynth?
Yes, running aplaymidi -p17:0, playmidi -a and kmid using port 17:0
$ aplaymidi -l
Port Client name Port name
14:0 Midi Through Midi Through Port-0
16:0 EMU10K1 MPU-401 (UART) EMU10K1 MPU-401 (UART)
17:0 Emu10k1 WaveTable Emu10k1 Port 0
17:1 Emu10k1 WaveTable Emu10k1 Port 1
17:2 Emu10k1 WaveTable Emu10k1 Port 2
17:3 Emu10k1 WaveTable Emu10k1 Port 3
>
> lock-up -> check which modules are loaded, if the soundfont is loaded and the
> IRQs.
> # lsmod | grep snd
> # asfxload <your-soundfont.sf2>
> # cat /proc/interrupts
>
> Dominique
As previously mentioned, I can cause the lock-up even without any
graphical desktop loaded.
$ lsmod|grep snd
snd_emu10k1_synth 6912 0
snd_emux_synth 30496 1 snd_emu10k1_synth
snd_seq_virmidi 6912 1 snd_emux_synth
snd_seq_midi_emul 5920 1 snd_emux_synth
snd_seq_dummy 3812 0
snd_seq_oss 28672 0
snd_seq_midi 8128 0
snd_seq_midi_event 6976 3 snd_seq_virmidi,snd_seq_oss,snd_seq_midi
snd_seq 46224 9
snd_emux_synth,snd_seq_virmidi,snd_seq_midi_emul,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_emu10k1 101444 2 snd_emu10k1_synth
snd_rawmidi 22560 3 snd_seq_virmidi,snd_seq_midi,snd_emu10k1
snd_ac97_codec 82720 1 snd_emu10k1
snd_ac97_bus 2368 1 snd_ac97_codec
snd_pcm_oss 35936 0
snd_mixer_oss 15872 1 snd_pcm_oss
snd_pcm 74500 3 snd_emu10k1,snd_ac97_codec,snd_pcm_oss
snd_seq_device 7756 8
snd_emu10k1_synth,snd_emux_synth,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_emu10k1,snd_rawmidi
snd_timer 20836 3 snd_seq,snd_emu10k1,snd_pcm
snd_page_alloc 9512 2 snd_emu10k1,snd_pcm
snd_util_mem 4608 2 snd_emux_synth,snd_emu10k1
snd_hwdep 8676 2 snd_emux_synth,snd_emu10k1
snd 48100 15
snd_emux_synth,snd_seq_virmidi,snd_seq_oss,snd_seq,snd_emu10k1,snd_rawmidi,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_device,snd_timer,snd_hwdep
soundcore 9216 1 snd
asfxload is working correctly - the MIDI playback is silent if I omit
asfxload between boot-up and attempting to play MIDI files.
$ cat /proc/interrupts
CPU0
0: 14821358 XT-PIC timer
1: 15016 XT-PIC i8042
2: 0 XT-PIC cascade
7: 1 XT-PIC parport0
8: 4 XT-PIC rtc
10: 122818 XT-PIC ohci_hcd:usb2, uhci_hcd:usb3, eth0
11: 1638 XT-PIC ehci_hcd:usb4, EMU10K1
12: 186965 XT-PIC ohci_hcd:usb1
14: 6970023 XT-PIC ide0
15: 879896 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0
MIS: 0
Others have reported the problem at
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=952
so I don't think that it's a problem unique to me.
Regards...
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