Re: Ossfree37 / Sound Blaster

Dipl.-Ing. A.Tack (
27 Oct 1996 13:58:22 GMT

Sven Eric ( wrote:
: Hi All,
: I recently got the latest sounddrivers for the 2.1.5 kernel. I got them to
: compile correctly and when i boot the machine the card gets initialised
: correctly however /dev/audio and /dev/dsp don't work.
: It says something like "cannot allocate DMA buffer", out of memory when
: doing a "cat > /dev/audio". Out of memory is not likely since
: i have 48Megs. The old drivers work fine (2.1.3 kernel)
: The sound card is a SoundBlaster AWE 32. Is anyone have the same problem
: (with the same or a different card).????

Yes I think I have the same problem with a Soundblaster 16 card. I compiled
sound in the kernel (no module) and while booting I get the message
"cannot allocate DMA buffer". System has an Adaptec 2940 controller. For
reference I include the output of /dev/sndstat:

Sound Driver:3.7-beta4-961021 (Sun Oct 27 14:16:36 MET 1996 root,
Linux ttk28 2.0.20 #2 Sat Sep 14 19:02:34 MET DST 1996 i686)
Kernel: Linux ttk28 2.1.5 #5 Sun Oct 27 14:17:17 MET 1996 i686
Config options: 0
Installed drivers:
Type 1: OPL-2/OPL-3 FM
Type 26: MPU-401 (UART)
Type 2: Sound Blaster
Type 29: Sound Blaster PnP
Type 7: SB MPU-401
Card config:
Sound Blaster at 0x220 irq 7 drq 1,5
(SB MPU-401 irq 1 drq 0)
OPL-2/OPL-3 FM at 0x388 drq 0
Audio devices:
0: Sound Blaster 16 (4.13)
Synth devices:
0: Yamaha OPL-3
Midi devices:
0: System clock
0: Sound Blaster

and the relevant output of dmesg:

Memory: 63040k/65536k available (876k kernel code, 384k reserved, 1236k data)
Sound initialization started
<Sound Blaster 16 (4.13)> at 0x220 irq 7 dma 1,5
<Yamaha OPL3 FM> at 0x388
Sound initialization complete
AHA-2940 (PCI-bus), I/O 0xd400, Mem 0xffbef000:

I think it is no conflict with my SCSI controller as suggested in the docs?!

Any help would be great


Andreas Tack                     Real-time-Voice-Connect: +49 (0)721 608 2326                       FAX: +49 (0)721 607102