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From: "Raúl Sánchez Siles" <rss@barracuda.es>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: USB problem in QEMU
Date: Mon, 09 Apr 2007 11:46:09 +0200	[thread overview]
Message-ID: <evd215$tj0$1@sea.gmane.org> (raw)
In-Reply-To: A3C277AA6499944188602D8A7168B9A70190D0F6@bjsmsx401

Yu, Xiaoyang wrote:

> 
> 
> The USB problem I met is that using some kind of USB disks will cause
> guest OS run extremely slow, while these disks can work properly in host
> OS. It looks like the USB simulation in QEMU is not fully featured, and
> can not handle some error conditions properly.
> 
  I've also noticed this, I thought it was a multiconfiguration problem, but
even applying the patch suggested sometime ago here, I could noticed the
slowness.

  For this I guess the configuration is linux host and windows guest as is
my case.  Slowness started once I issued usb_add on the qemu console and
after finding the emulated system unusable slowness stopped on usb_del on
qemu console again.

  I think the problem may be the qemu lacks some usb feature, maybe not
implemented yet. But I would be glad of hear what qemu people has to say
about this.

  Thanks.

-- 
Raúl Sánchez Siles

  reply	other threads:[~2007-04-09  9:59 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-05  7:23 [Qemu-devel] USB problem in QEMU Yu, Xiaoyang
2007-04-09  9:46 ` Raúl Sánchez Siles [this message]
2007-04-23  9:19   ` [Qemu-devel] " Raúl Sánchez Siles
2007-04-23 10:00     ` Yu, Xiaoyang
2007-04-23 10:54       ` [Qemu-devel] " Raúl Sánchez Siles
2007-04-24  2:26         ` Yu, Xiaoyang
2007-04-24  2:29           ` Yu, Xiaoyang

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