A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1047> ====================================================================== Reported By: alien999999999 Assigned To: mjander ====================================================================== Project: ALSA - driver Issue ID: 1047 Category: PCI - au88x0 Reproducibility: sometimes Severity: block Priority: normal Status: assigned Distribution: Mandrake Kernel Version: 2.6.7 ====================================================================== Date Submitted: 04-12-2005 20:43 CEST Last Modified: 06-26-2006 02:46 CEST ====================================================================== Summary: module hangs at seemingly random times Description: sometimes i start playing a song, and it starts playing a few second or so and hangs, then i kill the application and modprobe -r all sound modules and modprobe them again to make it work again. BUT: sometimes not only that happens, but also when i try to kill the apps it will not kill. when that happens, all kill, killall, top, ps aux commands hang at the command line and cannot be killed by CTRL-C or otherwise, i have been able to see that when i stopped my display managener I did an lsmod and it gave something like this: snd-pcm-oss 59752 11 snd-mixer-oss 20480 1 snd-pcm-oss snd-au8810 43760 220 snd-ac97-codec 83408 1 snd-au8810 snd-pcm 108172 112 snd-pcm-oss,snd-au8810,snd-ac97-codec snd-page-alloc 10384 1 snd-pcm gameport 3840 1 snd-au8810 snd-mpu401-uart 11904 1 snd-au8810 as you can see the snd-au8810 module seem to have an impossible number of "dependencies" (i think has to do with the number of unclosed sound-apps trying to be played; this could be since gaim is programmed to execute an 'aplay %s') i've had this major crash below only 3 times; and the logs didn't detect anything specific at the time. the only thing the logs mentioned at that time was an ntpd sync going on; so the only thing i can think of is that at a certain moment when a sync is going on, some kind of lock is holding cause this to happen... the only thing that i can do to fix this is reset... it is interesting to note that i also have an snd-emu10k1 as second card, which never gave problems like this, and i am always able to "modprobe -r snd-emu10k1" ... ====================================================================== ---------------------------------------------------------------------- Raymond - 06-25-06 07:04 ---------------------------------------------------------------------- >> 1. ALSA has hardware mixing if the chipset/driver supports it (i know mine >> does). >> 2. OSS does not do any multiple sounds >> so, the OSS application is continually using soundcard. and aplay plays a >> short one... should it work or must aplay be denied??? The au88xx driver in sourceforge also allow two or more instances of "mplayer -ao oss" or "play" running. For ALSA au88x0 driver, it depends on the application, By reducing the number of subdevice of au88x0 device 0 to 2 and have 2 stereo PCM running. (i.e. no available subdevice ) aplay *.wav aplay: main:548: audio open error: Device or resource busy mplayer -ao alsa=device=hw=0,0 *.wav alsa-init: using device hw:0 alsa-lib: pcm_hw.c:1248:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy alsa-init: playback open error: Device or resource busy Could not open/initialize audio device -> no sound. Audio: no sound Video: no video Exiting... (End of file) mplayer -ao oss *.wav [AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource busy alsa-init: using device default alsa-lib: pcm_hw.c:1248:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy alsa-init: playback open error: Device or resource busy [AO ARTS] can't connect to aRts soundserver [AO ESD] esd_open_sound failed: Connection reset by peer [JACK] cannot open server [AO SDL] Samplerate: 44100Hz Channels: Stereo Format s16le warning: leaving MCOP Dispatcher and still 143 types alive. [AO SDL] Unable to open audio: No available audio device open /dev/[sound/]dsp: Device or resource busy [OpenAL] could not open device AO: [null] 44100Hz 2ch s16le (2 bytes per sample) ---------------------------------------------------------------------- Raymond - 06-26-06 02:46 ---------------------------------------------------------------------- >>I don't know if this is true on any driver, but here's what happend yesterday: >> (i have au8810 driver; on x86_64 system) >> i was watching google video on my system >> (google video is a flash thing; thus emulated and uses OSS (the only app that >> needs it)) and suddenly gaim reconnected a network and beeped using aplay >> (ALSA) as a result, the sound was played, all sound looped (also flash), and a >> few hours later, my /var/log/kernel/warnings was > 600MB (kernel warnings). It seem that you only send the kernel warning to rlrevell. flash open playback/capture stream and use up 4 SRC, do gaim also open capture stream ? For ALSA au88x0 driver, it is possible to run two or more instances of "arecord" or "record" concurrently Most of the ALSA drivers don't support this, (This is why dsnoop is not needed for au88x0) Do OSS emulation official support this feature ? Issue History Date Modified Username Field Change ====================================================================== 04-12-05 20:43 alien999999999 New Issue 04-12-05 20:43 alien999999999 Distribution => Mandrake 04-12-05 20:43 alien999999999 Kernel Version => 2.6.7 04-12-05 20:48 alien999999999 Note Added: 0004461 04-12-05 20:49 alien999999999 File Added: au88x0.c 04-12-05 20:49 alien999999999 File Added: au88x0.h 04-12-05 20:50 alien999999999 File Added: au88x0_core.c 04-12-05 20:50 alien999999999 File Added: au88x0_mixer.c 04-12-05 20:51 alien999999999 Note Added: 0004462 08-24-05 11:13 Raymond Note Added: 0005928 10-27-05 02:27 Raymond Note Added: 0006564 01-03-06 04:04 Raymond Note Added: 0007397 01-04-06 22:08 alien999999999 Note Added: 0007455 01-05-06 07:21 Raymond Note Added: 0007462 01-05-06 20:32 shurick Issue Monitored: shurick 01-06-06 17:17 alien999999999 Note Added: 0007488 01-06-06 17:33 alien999999999 File Added: alsa-cvs-2006-01-04.patch 01-13-06 13:51 Raymond Note Added: 0007639 01-13-06 18:18 tiwai Note Added: 0007648 01-14-06 04:53 Raymond Note Added: 0007653 01-14-06 05:00 Raymond Note Edited: 0007653 01-17-06 12:27 Raymond Note Added: 0007697 01-18-06 15:51 Raymond Note Added: 0007710 01-18-06 15:52 Raymond File Added: au88x0_codec.patch 01-19-06 13:51 Raymond Note Added: 0007719 02-05-06 05:20 Raymond Note Edited: 0007710 02-05-06 05:28 Raymond Note Added: 0007930 02-13-06 16:38 Raymond Note Deleted: 0006564 02-13-06 16:41 Raymond Note Added: 0008054 03-01-06 07:39 Raymond Note Added: 0008273 03-18-06 12:28 Raymond Note Deleted: 0008273 03-20-06 17:54 Raymond File Added: au88x0_conf.patch 03-21-06 02:02 Raymond Note Added: 0008734 03-21-06 18:01 tiwai Note Added: 0008754 03-22-06 02:05 Raymond File Added: au88x0_mpu401.patch 03-22-06 02:28 Raymond Note Added: 0008779 03-22-06 02:31 Raymond Note Edited: 0008779 03-22-06 02:38 rlrevell Note Added: 0008782 03-22-06 04:00 Raymond Note Added: 0008836 03-22-06 04:09 rlrevell Note Added: 0008839 03-26-06 09:55 Raymond Note Added: 0008967 03-29-06 17:48 Raymond Note Added: 0008995 03-31-06 06:52 Raymond Note Edited: 0008995 04-02-06 07:01 Raymond Note Edited: 0008995 04-10-06 16:07 Raymond Note Added: 0009190 04-10-06 16:39 tiwai Note Added: 0009192 04-10-06 16:43 Raymond Note Added: 0009194 04-10-06 16:45 tiwai Note Added: 0009195 04-10-06 19:01 Raymond Note Added: 0009215 04-10-06 19:04 Raymond Note Edited: 0009215 04-10-06 19:05 tiwai Note Added: 0009216 04-11-06 18:36 Raymond Note Added: 0009234 04-11-06 18:54 tiwai Note Added: 0009235 06-25-06 07:04 Raymond Note Added: 0010502 06-26-06 02:46 Raymond Note Added: 0010522 ====================================================================== Using Tomcat but need to do more? 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