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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

  reply	other threads:[~2010-09-11 13:53 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-10 21:47 H. Peter Anvin
2010-09-10 21:47 ` [Qemu-devel] " H. Peter Anvin
2010-09-11  0:28 ` malc
2010-09-11  0:28   ` [Qemu-devel] " malc
2010-09-11  1:08   ` H. Peter Anvin
2010-09-11  1:08     ` [Qemu-devel] " H. Peter Anvin
2010-09-11  2:47     ` H. Peter Anvin
2010-09-11  2:47       ` H. Peter Anvin
2010-09-11  3:05       ` 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 13:14       ` [Qemu-devel] " Alexander Graf
2010-09-11 18:29       ` H. Peter Anvin
2010-09-11 18:29         ` [Qemu-devel] " H. Peter Anvin
2010-09-11  7:41 ` Stefan Hajnoczi
2010-09-11  7:41   ` [Qemu-devel] " Stefan Hajnoczi
2010-09-12  5:20   ` H. Peter Anvin
2010-09-12  5:20     ` [Qemu-devel] " H. Peter Anvin
2010-09-13 20:53 ` Amos Kong
2010-09-13 20:53   ` [Qemu-devel] " Amos Kong
2010-09-13 21:04   ` H. Peter Anvin
2010-09-13 21:04     ` [Qemu-devel] " H. Peter Anvin
2010-09-14  1:37     ` Amos Kong
2010-09-14  1:37       ` [Qemu-devel] " Amos Kong
2010-09-14  5:56       ` H. Peter Anvin
2010-09-14  5:56         ` [Qemu-devel] " H. Peter Anvin
2010-10-14 13:51         ` Mike Snitzer
2010-10-14 13:51           ` [Qemu-devel] " Mike Snitzer
2010-10-14 15:40           ` H. Peter Anvin
2010-10-14 15:40             ` [Qemu-devel] " 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
2010-09-13 21:07     ` [Qemu-devel] " H. Peter Anvin

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