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RE: [Qemu-devel] Re: USB problem in QEMU
From: |
Yu, Xiaoyang |
Subject: |
RE: [Qemu-devel] Re: USB problem in QEMU |
Date: |
Mon, 23 Apr 2007 18:00:12 +0800 |
I found that using "usb_add disk:/dev/sda" instead of "usb_add host:1.1" will
fix this problem.
Thanks
Xiaoyang
-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Raúl Sánchez Siles
Sent: 2007年4月23日 17:20
To: address@hidden
Subject: [Qemu-devel] Re: USB problem in QEMU
Raúl Sánchez Siles wrote:
> 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.
>
I'm still interested in this, I would appreciate some comment about the
issue.
Thanks.
--
Raúl Sánchez Siles
- [Qemu-devel] USB problem in QEMU, Yu, Xiaoyang, 2007/04/05
- [Qemu-devel] Re: USB problem in QEMU, Raúl Sánchez Siles, 2007/04/09
- [Qemu-devel] Re: USB problem in QEMU, Raúl Sánchez Siles, 2007/04/23
- RE: [Qemu-devel] Re: USB problem in QEMU,
Yu, Xiaoyang <=
- [Qemu-devel] RE: Re: USB problem in QEMU, Raúl Sánchez Siles, 2007/04/23
- RE: [Qemu-devel] RE: Re: USB problem in QEMU, Yu, Xiaoyang, 2007/04/23
- RE: [Qemu-devel] RE: Re: USB problem in QEMU, Yu, Xiaoyang, 2007/04/23