Bug#376382: [Pkg-alsa-devel] Bug#376382: alsa-base: MIDI playback on SB Live! 5.1 0220 combine with heavy disk activity = lockup

[Arthur Marsh]

Elimar Riesebieter wrote:
> On Sun, 02 Jul 2006 the mental interface of
> Arthur Marsh told:
> 
>> Package: alsa-base
>> Version: 1.0.11-2
>> Severity: important
>>
>>
>> I initially thought I had a problem with denemo, but was able to 
>> reproduce a complete system lockup when playing MIDI files, given 
>> sufficient hard disk activity using:
>>
>> aplaymidi -p17:0
>> playmidi -a
>> kmid
>>
>> The first 2 were tried under twm, all 3 methods were tried under KDE.
>>
>> Any suggestions on further debugging steps welcome.
> 
> I have a soudblaster with emu10k1 chip. Following midi modules are
> loaded:
> snd_seq_virmidi
> snd_seq_midi_emul
> snd_seq_midi
> snd_seq_midi_event
> snd_rawmidi
> 
> Can you confirm?

$ 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

> 
> Else make sure no artsd is running to with aplaymidi.

OK, I tried disabling the sound system under the KDE Control Centre but 
still reproduced the lock-up (as well as under twm).

> 
> Elimar
> 
> 

Regards,

Arthur.