Messages in this thread | | | Date | Thu, 18 Feb 1999 20:30:04 -0500 (EST) | From | Gregory Maxwell <> | Subject | Sound problems, Scsi CDDA ripping. 2.2+ |
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I'm having a problem on three computers, where the computer refuses to play sound. I suspect that the sound driver allocates the DMA every time the audio device is opened inseted of when the driver is loaded, this is not acceptiable with the current state of Linuxes VM.
On these systems, CDparanoia is used to read CDDA audio data from plextor SCSI cdrom drives (on aic7xxx scsi controlers). Ocassionally audio is played via /dev/dsp. This works fine for a while, but eventually the sound driver starts reporting "Sound error: Couldn't allocate DMA buffer". Sound is NOT autoloaded.
if you retry a number of times, it will eventually work, or if you dd if=/dev/zero bs=bignumber of=/dev/null.
So it seems to me the issue would be solved by allocating the dma buffer at module load then loading the modules at boot.
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