A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1823> ====================================================================== Reported By: darkbrain Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1823 Category: PCI - cs46xx Reproducibility: always Severity: major Priority: normal Status: new Distribution: Kernel Version: ====================================================================== Date Submitted: 02-05-2006 22:59 CET Last Modified: 07-25-2006 10:18 CEST ====================================================================== Summary: surround40 memory leak Description: It seems that surround40 has a memory leak or somthing similar, playing a game in surround40 mode the game result unplayable after some minutes. And there is a problem in CS46xx.conf file, i need to remove the hook on the rear pcm to permit multiple surround40 subdevices to be opened. ====================================================================== ---------------------------------------------------------------------- Raymond - 07-25-06 05:47 ---------------------------------------------------------------------- I am just a reporter and do not have any cs46xx card too. Whether cs46xx support multiple instances of multi-channels seem depend on DSP firmware Can you run multiple instances of surround40 and surround51 concurrently (speaker-test or 5.1 movie) by removing the lock in CS46xx.conf I want to find out a feasible solution (period_size, period and buffer_size calculation by snd_pcm_set_params() ) for my au8830 sound card in https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1724 by comparing au8830 (device 0 support 1, 2, 4 channels) with cs46xx (multi pluginn of device front, rear and center_lfe). Can you try alsa-lib example (i.e. alsa-lib/test/pcm_min.c) ? I upload set_params_test.c in https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1724 which test different devices (hw:0, front, surround40, surround51) with 1, 2, 4, 6 channels, rates(8000, 44100, 48000) , formats U8/S16_LE in snd_pcm_set_params() and print out the values of period_size and buffer_size returned by snd_pcm_get_params() BTW, you forget to call snd_pcm_info(pcm, obj) in your program ---------------------------------------------------------------------- darkbrain - 07-25-06 10:18 ---------------------------------------------------------------------- Well the problem is difficult to resolve. For hooks read better the description of the bug. Anyway i talked to Benny Sjostrand about these problems and he explained me a bit the logic of this dsp, and how this driver was made: throght reverse engineering! The only thing i've found is this: in file dsp_spos.c replace "REAR_CODECOUT_SCB_ADDR,codec_in_scb" with "REAR_CODECOUT_SCB_ADDR,codec_out_scb" at about line 1364. With this "patch" you should be able to use the quad pcm (route device) without the out of sync problem. Anyway the problem isn't solved! It maybe a delay in some SCB or it may be an application problem caused by the cut of available devices that is halved. Btw without documentation is not possible to work on it. bye, DarkBrain Issue History Date Modified Username Field Change ====================================================================== 02-05-06 22:59 darkbrain New Issue 02-06-06 06:32 Raymond Note Added: 0007943 02-06-06 07:10 Raymond Note Edited: 0007943 02-06-06 07:31 Raymond Note Edited: 0007943 02-06-06 07:32 Raymond Note Edited: 0007943 02-06-06 10:46 darkbrain Note Added: 0007945 02-06-06 10:46 darkbrain Note Added: 0007946 02-06-06 10:47 darkbrain Note Deleted: 0007946 02-06-06 18:37 darkbrain Note Added: 0007950 02-11-06 15:01 darkbrain Note Added: 0008018 02-12-06 05:09 Raymond Note Added: 0008025 02-15-06 06:21 Raymond Note Added: 0008076 02-21-06 07:56 Raymond Note Added: 0008152 03-27-06 04:42 Raymond Note Added: 0008987 06-02-06 09:33 Raymond Note Deleted: 0008152 06-02-06 09:33 Raymond Note Deleted: 0008987 06-02-06 09:34 Raymond Note Deleted: 0008076 07-11-06 13:28 Raymond Note Added: 0010970 07-24-06 21:21 bitmage2 Note Added: 0011215 07-24-06 21:25 bitmage2 Note Added: 0011216 07-25-06 02:41 Raymond Note Added: 0011222 07-25-06 05:47 Raymond Note Edited: 0011222 07-25-06 10:18 darkbrain Note Added: 0011224 ====================================================================== ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
