From: malc <av1474@comtv.ru>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>,
qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
Date: Sat, 11 Sep 2010 17:53:12 +0400 (MSD) [thread overview]
Message-ID: <alpine.LNX.2.00.1009111745510.2074@linmac> (raw)
In-Reply-To: <4C8AF1EA.4090301@zytor.com>
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
--
mailto:av1474@comtv.ru
next prev parent reply other threads:[~2010-09-11 13:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-10 21:47 [Qemu-devel] [PATCH] [RFC] Add support for a USB audio device model H. Peter Anvin
2010-09-11 0:28 ` [Qemu-devel] " malc
2010-09-11 1:08 ` H. Peter Anvin
2010-09-11 2:47 ` H. Peter Anvin
2010-09-11 3:05 ` H. Peter Anvin
2010-09-11 13:53 ` malc [this message]
2010-09-11 17:09 ` H. Peter Anvin
2010-09-11 13:14 ` Alexander Graf
2010-09-11 18:29 ` H. Peter Anvin
2010-09-11 7:41 ` Stefan Hajnoczi
2010-09-12 5:20 ` H. Peter Anvin
2010-09-13 20:53 ` Amos Kong
2010-09-13 21:04 ` H. Peter Anvin
2010-09-14 1:37 ` Amos Kong
2010-09-14 5:56 ` H. Peter Anvin
2010-10-14 13:51 ` Mike Snitzer
2010-10-14 15:40 ` H. Peter Anvin
2010-10-14 16:18 ` Alon Levy
2010-10-14 17:43 ` H. Peter Anvin
2010-09-13 21:07 ` H. Peter Anvin
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