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From: "Tomasz Kłoczko" <kloczek@rudy.mif.pg.gda.pl>
To: Takashi Iwai <tiwai@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: Is it time for remove (crap) ALSA from kernel tree ?
Date: Mon, 25 Jun 2007 19:00:35 +0200 (CEST)	[thread overview]
Message-ID: <Pine.BSO.4.63.0706251840080.25800@rudy.mif.pg.gda.pl> (raw)
In-Reply-To: <s5hzm2ogqr7.wl%tiwai@suse.de>

[-- Attachment #1: Type: TEXT/PLAIN, Size: 8607 bytes --]

On Mon, 25 Jun 2007, Takashi Iwai wrote:
[..]
>> ALSA still does not provides good soud devices virtualization for more
>> then one application. Each day I'm using bludy words when I'm try to use
>> skype which oppens /dev/mixer after run galeon with flash plugin which
>> opens /dev/snd/pcm* or when I start GNOME session with soud enabled
>> (handled by esd whuich uses ALSA).
>
> So, do you mean the soft-mixing is the biggest issue?  That's just a
> part of a design issue, and if we want to go to that way, the
> impelemtation would be trivial, regardless on ALSA or not.  Totally
> irrelevant argument regarding "remove ALSA".

I dont know is soft mixing is biggest issue but ..
Few minutes ago I'm upgrade to skype 1.4.x.

Lets try again above experiment:

$ strace -f -e trace=file galeon 2>&1 | grep dev/snd
[pid 28593] open("/dev/snd/controlC0", O_RDWR) = 46
[pid 28593] open("/dev/snd/pcmC0D0p", O_RDWR|O_NONBLOCK) = 47

OK .. now I'm enter on www.youtube.com and start playing random video.
Look on above: soud device was oppened in non bloking mode.

After few seconds I'm close tab with video in galeon.
Just after this I'm start skype and try call to test123 and calling isn't 
possible:

$ strace -f -e trace=file skype 2>&1 | grep dev/snd
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC1", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC1", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC1", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC2", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC2", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC2", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC3", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC4", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC5", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC6", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC7", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC8", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC9", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC10", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC11", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC12", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC13", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC14", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC15", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC16", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC17", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC18", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC19", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC20", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC21", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC22", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC23", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC24", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC25", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC26", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC27", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC28", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC29", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC30", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC31", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC1", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC1", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC1", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC2", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC2", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC2", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC3", O_RDONLY <unfinished ...>
[pid 30173] open("/dev/snd/controlC4", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC5", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC6", O_RDONLY <unfinished ...>
[pid 30173] open("/dev/snd/controlC7", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC8", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC9", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC10", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC11", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC12", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC13", O_RDONLY <unfinished ...>
[pid 30173] open("/dev/snd/controlC14", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC15", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC16", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC17", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC18", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC19", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC20", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC21", O_RDONLY) =tory)
[pid 30173] open("/dev/snd/controlC23", O_RDo such file or directory)
[pid 30173] open("/dev/snd/controlC24", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/control O_RDONLY) = -1 ENOENT (No suchfile or directory)
[pid 30173] open("/dev/snd/controlC26", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC27", O_RDONLY) = -1 ENOENsuch file or directory)
[pid 30173] open("/ev/snd/controlC28", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC29", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/controlC30", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30173] open("/dev/snd/pcmC0D0p", O_RDWR|O_NONBLOCK|O_ASYNC) = -1 EBUSY (Device or resource busy)
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK|O_ASYNC) = 44
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK|O_ASYNC) = 44
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDWR|O_NONBLOCK) = 43
[pid 30173] open("/dev/snd/controlC0", O_RDONLY) = 44
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 44
[pid 30173] open("/dev/snd/controlC0", O_RDWR) = 44
[pid 30173] open("/dev/snd/pcmC0D0p", O_RDWR|O_NONBLOCK|O_ASYNC) = -1 EBUSY (Device or resource busy)
[..]

/dev/snd/pcmC0D0p is busy ? YES because it was oppened by another 
application in non blocking mode which makes device .. unavalable to other :)
Welcome in wonderful ALSA word ..

And interesting .. why skype tries to open so meny devices (?)

kloczek
-- 
-----------------------------------------------------------
*Ludzie nie mają problemów, tylko sobie sami je stwarzają*
-----------------------------------------------------------
Tomasz Kłoczko, sys adm @zie.pg.gda.pl|*e-mail: kloczek@rudy.mif.pg.gda.pl*

  parent reply	other threads:[~2007-06-25 17:01 UTC|newest]

Thread overview: 111+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-24 17:51 Is it time for remove (crap) ALSA from kernel tree ? Tomasz Kłoczko
2007-06-24 19:08 ` Alan Cox
2007-06-24 19:24   ` Tomasz Kłoczko
2007-06-24 19:27     ` Jan Engelhardt
2007-06-24 21:43       ` Rene Herman
2007-06-25 10:06       ` Tomasz Kłoczko
2007-06-25 10:46         ` Jan Engelhardt
2007-06-25 20:32         ` Hannu Savolainen
2007-06-24 20:57     ` Alan Cox
2007-06-24 22:43       ` Olivier Galibert
2007-06-24 22:44       ` Carlo Wood
2007-06-24 22:48         ` Jesper Juhl
2007-06-24 23:13           ` Carlo Wood
2007-06-25  3:41         ` Nobin Mathew
2007-06-25  9:06           ` Alan Cox
2007-06-25 10:41             ` Takashi Iwai
2007-06-25 20:09               ` Handling xruns in OSS (was Hannu Savolainen
2007-06-26  9:18                 ` Takashi Iwai
2007-06-25  9:51       ` Is it time for remove (crap) ALSA from kernel tree ? Tomasz Kłoczko
2007-06-25 10:58         ` Takashi Iwai
2007-06-25 11:36           ` Tomasz Kłoczko
2007-06-25 12:31             ` Takashi Iwai
2007-06-25 12:40               ` Jan Engelhardt
2007-06-25 12:47                 ` Olivier Galibert
2007-06-25 12:50                   ` Takashi Iwai
2007-06-25 12:44               ` Olivier Galibert
2007-06-25 12:58                 ` Takashi Iwai
2007-06-25 13:20                   ` Olivier Galibert
2007-06-25 13:21                 ` Adrian Bunk
2007-06-28 18:30                   ` Nix
2007-06-28 20:02                     ` Rene Herman
2007-06-28 20:20                       ` Lee Revell
2007-06-28 20:43                         ` Adrian Bunk
2007-06-28 20:22                       ` Jeff Garzik
2007-06-28 21:06                     ` Adrian Bunk
2007-06-28 21:37                       ` Rene Herman
2007-06-28 22:24                       ` Nix
2007-06-29 11:52                       ` Florian Schmidt
2007-06-29 14:56                         ` Miklos Szeredi
2007-06-29 15:49                           ` Alan Cox
2007-06-29 15:55                             ` Miklos Szeredi
2007-06-29 16:14                               ` Miklos Szeredi
2007-07-01 11:46                                 ` Florian Schmidt
2007-07-01 12:17                                   ` Miklos Szeredi
2007-06-29 18:39                   ` Pavel Machek
2007-06-25 17:00               ` Tomasz Kłoczko [this message]
2007-06-25 22:49                 ` Rene Herman
2007-06-25 13:01             ` Gabor Gombas
2007-06-25 13:41               ` Tomasz Kłoczko
2007-06-25 14:05                 ` Gabor Gombas
2007-06-25 13:21             ` Renato S. Yamane
2007-06-25 14:02               ` Tomasz Kłoczko
2007-06-25 13:46             ` Rene Herman
2007-06-25  6:24     ` Carlo Florendo
2007-06-25  6:22 ` Carlo Florendo
2007-06-25 10:53 ` Takashi Iwai
2007-06-25 11:50   ` Tomasz Kłoczko
2007-06-25 13:04     ` Bartlomiej Zolnierkiewicz
2007-06-25 21:18   ` Hannu Savolainen
2007-06-25 23:17     ` Adrian Bunk
2007-06-26 16:25       ` Wakko Warner
2007-06-26 16:52         ` Takashi Iwai
2007-06-27 11:11           ` Wakko Warner
2007-06-26  9:35     ` Takashi Iwai
2007-06-26 11:48     ` Jeff Garzik
2007-06-29 18:31       ` OSS vs ALSA API (was Re: Is it time for remove (crap) ALSA from kernel tree ?) Pavel Machek
2007-06-25 14:44 ` Is it time for remove (crap) ALSA from kernel tree ? Lennart Sorensen
2007-06-25 15:48   ` Tomasz Kłoczko
2007-06-25 17:13     ` Lennart Sorensen
2007-07-04  6:35 ` Darren
2007-07-04 17:32   ` Adrian Bunk
2007-07-05 12:59     ` Tomasz Kłoczko
2007-06-24 18:35 Ash Willis
2007-06-24 19:01 ` Tomasz Kłoczko
     [not found] <fa.4npeXBdRGMm2JoKWe0qhjQdrJkk@ifi.uio.no>
     [not found] ` <fa.bAhr1dmoWCFU+8Kxo95nsy5DRRU@ifi.uio.no>
     [not found]   ` <fa.MQ77mllForge5OWcDydLlI0yp8s@ifi.uio.no>
2007-06-24 19:37     ` Robert Hancock
2007-06-26 20:39 Andreas Hartmetz
2007-06-26 21:10 ` Måns Rullgård
2007-06-27  3:59 ` Rene Herman
2007-06-28  3:41 ` Lee Revell
2007-06-28 11:52   ` Tomasz Kłoczko
2007-06-28 13:02     ` Meelis Roos
2007-06-27 16:25 Andreas Hartmetz
2007-06-27 17:29 ` Rene Herman
2007-06-27 19:10   ` Andreas Hartmetz
2007-06-27 23:12     ` Rene Herman
2007-06-28  0:18       ` Patrick Draper
2007-06-28  1:58         ` Rene Herman
2007-06-28  2:28           ` Rene Herman
2007-06-28 11:15             ` Rene Herman
2007-06-28  3:04           ` Patrick Draper
2007-06-28  3:22             ` Lee Revell
2007-06-28  5:13             ` Arjan van de Ven
2007-06-28 11:50             ` Tomasz Kłoczko
2007-06-28 11:58               ` Gabriel C
2007-06-28 12:57               ` Rene Herman
2007-06-28 12:39             ` Rene Herman
2007-06-28 12:42 Anton Petrusevich
2007-06-28 15:02 ` Rene Herman
2007-06-28 16:34   ` Anton Petrusevich
2007-06-28 16:38     ` Xavier Bestel
2007-06-28 18:56     ` Rene Herman
2007-06-28 19:33       ` Tomasz Kłoczko
2007-06-28 19:34         ` Rene Herman
2007-06-29 10:30     ` Florian Schmidt
2007-06-29 11:40       ` Anton Petrusevich
2007-06-29 12:38         ` Florian Schmidt
2007-06-29 12:29 ` Gabriel C
     [not found] <fa.C+RaPJT9DzfOowG03yiRkB6ItF8@ifi.uio.no>
     [not found] ` <fa.eZW1VxypFFwQqmC93xQaStxDK0Q@ifi.uio.no>
     [not found]   ` <fa.n+OzEywqHGabZtz5NxmlX4rEY0A@ifi.uio.no>
2007-06-29  1:16     ` Robert Hancock
2007-06-29 22:04       ` Rene Herman
2007-07-07  2:41 William Pitcock
2007-07-07 13:23 ` Carlo Wood

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