Unfortunately I have to correct my previous message.
After a load test with jack + qsynth + rosegarden (sample rate=88200, frames/period=256, periods/buffer=3), using a 16 tracks midi file and a 29MB sound font, the following message appeared:
[ 1098.445807] ALSA /home/marco/build/linux-2.6.24-19-rt/alsa-1.0.17/driver-patched/alsa-driver-1.0.17/usb/caiaq/../../alsa-kernel/usb/caiaq/caiaq-midi.c:84: snd-usb-caiaq log: snd_usb_caiaq_midi_send(f64c66c0): usb_submit_urb() failed, -22
Cheers, Marco
2009/1/8 Marco Santamaria marco.santamaria@gmail.com
No more errors in dmesg this time. Tomorrow I will apply the patch to the latest stable version of the alsa-driver (1.0.18).
Please let me know if there are more tests I can do with JACK, Rosegarden, Ardour or something else.
Do you think that this patch will go in the next version of the alsa-driver?
Thank you very much for your help, Marco
2009/1/7 Takashi Iwai tiwai@suse.de
At Wed, 7 Jan 2009 21:06:23 +0100,
Mysth-R wrote:
Hi Takashi,
I have almost the same problem as Marco. (that is why Marco forwarded me
this
message).
Well, Now it seems to be almost perfect. Just to explain to you :
I had a problem with Pure data, each time I wanted to enable the alsa
midi (in
pure data). Then I had some problem opening some of my patch, making pd zombified and Jack output tons of "delay of 1666.000 usecs exceeds
estimated
spare time of 1140.000; restart ..." until I stop it and run it again.
Now pd works perfectly. I made some others jackd settings, and the
"xruns"
messages seems to gone away.
But like Marco I got this message in the output of dmesg :
[ 20.269196] Adding 530136k swap on /dev/sda3. Priority:-1 extents:1 across:530136k [ 445.142031] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 445.393030] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 445.640986] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 445.892008] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 446.141982] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 446.392962] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 446.640967] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22 [ 446.891986] snd-usb-caiaq log:
snd_usb_caiaq_midi_send(ffff81007f9380c0):
usb_submit_urb() failed, -22
OK, what about this patch? Now it checks the URB existence before submission.
thanks,
Takashi
diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h index f9fbdba..ab56e73 100644 --- a/sound/usb/caiaq/caiaq-device.h +++ b/sound/usb/caiaq/caiaq-device.h @@ -75,6 +75,7 @@ struct snd_usb_caiaqdev { wait_queue_head_t ep1_wait_queue; wait_queue_head_t prepare_wait_queue; int spec_received, audio_parm_answer;
int midi_out_active; char vendor_name[CAIAQ_USB_STR_LEN]; char product_name[CAIAQ_USB_STR_LEN];diff --git a/sound/usb/caiaq/caiaq-midi.c b/sound/usb/caiaq/caiaq-midi.c index 30b57f9..6b76f7f 100644 --- a/sound/usb/caiaq/caiaq-midi.c +++ b/sound/usb/caiaq/caiaq-midi.c @@ -69,7 +69,8 @@ static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *dev,
dev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE; dev->midi_out_buf[1] = 0; /* port */
len = snd_rawmidi_transmit_peek(substream, dev->midi_out_buf+3,EP1_BUFSIZE-3);
len = snd_rawmidi_transmit(substream, dev->midi_out_buf + 3,EP1_BUFSIZE - 3); if (len <= 0) return;@@ -81,22 +82,21 @@ static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *dev, if (ret < 0) log("snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed, %d\n", substream, ret);
elsedev->midi_out_active = 1;}
static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
if (dev->midi_out_substream != NULL)return;if (!up) {
if (up) {dev->midi_out_substream = substream;if (!dev->midi_out_active)snd_usb_caiaq_midi_send(dev, substream);} else { dev->midi_out_substream = NULL;
return; }dev->midi_out_substream = substream;snd_usb_caiaq_midi_send(dev, substream);}
@@ -163,14 +163,13 @@ void snd_usb_caiaq_midi_output_done(struct urb* urb) struct snd_usb_caiaqdev *dev = urb->context; char *buf = urb->transfer_buffer;
dev->midi_out_active = 0; if (urb->status != 0) return; if (!dev->midi_out_substream) return;
snd_rawmidi_transmit_ack(dev->midi_out_substream, buf[2]);dev->midi_out_substream = NULL; snd_usb_caiaq_midi_send(dev, dev->midi_out_substream);}