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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Raúl Sánchez Siles Sent: 2007年4月23日 17:20 To: qemu-devel@nongnu.org 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
