On Fri, 10 Sep 2010, H. Peter Anvin wrote:
> On 09/10/2010 07:47 PM, H. Peter Anvin wrote:
> > On 09/10/2010 06:08 PM, H. Peter Anvin wrote:
> >>
> >> Any remotely recent stock distro should have support for it. I say
> >> "should", because I haven't actually tested it with a Linux guest yet.
> >>
> >> I'll try to do that later; I have to leave now.
> >>
> >
> > Just tested it on a stock Fedora 13 64 bit VM; it behaves exactly the
> > same way as under Win7.
>
Sorry but I have no idea what "stock Fedora 13 64 bit VM" is.
> Just for the sake of completeness, the Qemu command line was:
>
> ~/qemu/git-kvm/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -smp 2 -m
> 1024 -usb -soundhw usb -hda qemu-fc13-64.img -serial stdio
>
> ... and this was with the usb-audio patch applied against top of the the
> qemu-kvm git tree (the patch applies against the top of the main qemu
> tree too, but because KVM isn't very stable there it was faster to use
> the KVM tree.)
^^^ this doesn't parse, somewhere QEMU was replaced by KVM i think
Anywho, i tried it with linux-test and custom/minimal compiled 2.6.32 [1]
x86_64-softmmu/qemu-system-x86_64 -kernel \
~/x/bld/linux-2.6.32/arch/x86_64/boot/bzImage -append "root=/dev/hda" \
-vnc :0 -soundhw usb ~/x/img/linux-0.2.img -usb [-enable-kvm]
^^^ this has no consequence [2]
Inside the guest `$ madplay 20thfull.mp2' and things sounded fine with OSS,
with ALSA the story is somewhat different, it stuttered for a while but then
settled and things went back to smooth playback.
So i need a reproduction scenario
[1] .config available on request
[2] Well actually it has - on the speed `-enable-kvm' makes boot sluggish
for whatever reason
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