Running 32 bit apps under 64 bit kernel

Running 32 bit apps under 64 bit kernel

[Koef]

I have AMD64 machine running 64 bit 2.6.9-rc3 kernel. 64 bit sound apps run
fine, but 32 bit apps do not:

$ aplay file.wav
aplay: main:508: audio open error: Invalid argument

And I find in my syslog:

ioctl32(aplay:1080): Unknown cmd fd(3) cmd(80045500){00} arg(ffffd77c) on
/dev/snd/controlC0

A strace segment:

open("/dev/snd/controlC0", O_RDONLY)    = 3
close(3)                                = 0
open("/dev/snd/controlC0", O_RDWR)      = 3
ioctl(3, USBDEVFS_CONTROL, 0xffffd76c)  = -1 EINVAL (Invalid argument)
close(3)                                = 0
write(2, "aplay: main:508: ", 17aplay: main:508: )       = 17
write(2, "audio open error: Invalid argume"..., 34audio open error: Invalid
argument) = 34

The same segment with 64 bit aplay binary:

open("/dev/snd/controlC0", O_RDONLY)    = 3
close(3)                                = 0
open("/dev/snd/controlC0", O_RDWR)      = 3
ioctl(3, USBDEVFS_CONTROL, 0x7fbffff41c) = 0
ioctl(3, 0x40045532, 0x7fbffff464)      = 0
open("/dev/snd/pcmC0D0p", O_RDWR)       = 4
close(3)                                = 0

-- 
Koef.


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Re: Running 32 bit apps under 64 bit kernel

[Takashi Iwai]

At Tue, 12 Oct 2004 16:56:57 +0200,
Koef wrote:
> 
> I have AMD64 machine running 64 bit 2.6.9-rc3 kernel. 64 bit sound apps run
> fine, but 32 bit apps do not:
> 
> $ aplay file.wav
> aplay: main:508: audio open error: Invalid argument

Did you snd-ioctl32?


Takashi


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Re: Running 32 bit apps under 64 bit kernel

[Koef]

On Tue, Oct 12, 2004 at 05:17:57PM +0200, Takashi Iwai wrote:

> Koef wrote:
> > 
> > I have AMD64 machine running 64 bit 2.6.9-rc3 kernel. 64 bit sound apps run
> > fine, but 32 bit apps do not:
> 
> Did you snd-ioctl32?

Ah! So that's the magic word. I apologize for not finding this in the
documentation ;-) All is well now.

Thanks, Koef.


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