On 2014/11/9 2:47, MikeFrysinger wrote: > the problem is this commit: > http://git.qemu.org/?p=qemu.git;a=commit;h=b791c3b38c7969cb9f4acda8229e19fd865a1c08 > > it's easy to reproduce -- plug in a USB flash drive and try to pass it > through >
What's your USB flash drive's version? USB1.1 or USB2.0 or 3.0? Please post the value: 1.cat /sys/bus/usb/device/xx-xx/speed [xx-xx: hostbus-hostport] 2.And your exact command line launched Qemu . Best regards, -Gonglei > on the host: > $ lsusb > Bus 003 Device 004: ID 1307:0163 Transcend Information, Inc. 256MB/512MB/1GB > Flash Drive > > so launch qemu with that: > -usbdevice host:1307:0163 > > and then in the VM, if it fails, you get those errors in dmesg, and the > device doesn't show up in `lsusb`. if it passes, `lsusb` reports it > fine. >
