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From: renehl@post1.tele.dk (Rene Hojbjerg Larsen)
Subject: Re: mmap'ed access to /dev/dsp kills ALSA CVS
Date: 12 Mar 1999 00:24:52 GMT
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    <19990311215004.A16447@sandra.lysator.liu.se>
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Andreas Ehliar wrote:
> On Thu, Mar 11, 1999 at 05:17:14PM +0000, Rene Hojbjerg Larsen wrote:
>> It would seem that the latest ALSA CVS version has trouble handling OSS
>> compatible mmap'ed access to /dev/dsp.  Specifically, when I exit Quake II
>> (which uses mmap'ed sound) the primary PCM channel on my sound card
>> (SB PCI128) locks up.  The status of the PCM channel when in this state is
> 
> <snip>
> 
>> The problem started when I upgraded from 0.3.0pre4 to the current CVS
>> version.  Some system info:
> 
> 
> For what it's worth, I have the same problem, although my problem started
> with the change from 2.2.2 to 2.2.3

That makes sense to me.  I upgraded the kernel at the same time as ALSA,
but I just assumed that ALSA was to blame.  Still, there is a problem to
adress for either the kernel or the ALSA developers.

> Version/cardinfo:
> ehliar@angreal:/proc/asound>cat version 
> Advanced Linux Sound Architecture Driver Version 0.3.0-pre4.
> Compiled in Mar  9 1999 for kernel 2.2.3 (SMP).
> ehliar@angreal:/proc/asound>cat cards 
> 0 [card1          ]: SB16 - Sound Blaster 16
>                      Sound Blaster 16 at 0x220, irq 5, dma 1&5

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