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[Qemu-devel] [Bug 1392504] Re: libvirt not relabeling devices on USB Pas

From: Kelvin Middleton
Subject: [Qemu-devel] [Bug 1392504] Re: libvirt not relabeling devices on USB Passthrough
Date: Sun, 29 Mar 2015 22:37:57 -0000

The syslog output looks like its from the Host not the guest?

What does the libvirtd log say for the guest...typically at
/var/log/libvirt/qemu/XXX (XXX being the name of the guest).

There are 2 separate issues/related in this thread, first being USB
attachment to guests not working which is believed ownership related
hence my *workaround* in post #23. The second is about how the USB
device is re-atrached to the Host once the guest has been
destroyed...this is what the syslog/dmesg outputs are about and why
Serge has renamed the bug report.

Your posts say you are having problem with both which seems odd and not

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  libvirt not relabeling devices on USB Passthrough

Status in QEMU:
Status in libvirt package in Ubuntu:

Bug description:
  After upgrading from Ubuntu 14.04 to Ubuntu 14.10 USB passthrough in
  QEMU (version is now 2.1.0 - Debian2.1+dfsg-4ubuntu6.1) is not working
  any more. Already tried to remove and attach the USB devices. I use 1
  USB2 HDD  +  1 USB3 HDD to a virtual linux machine; 1 USB2 HDD to a
  virual FNAS machine and a USB 2camera to virtual Win7 machine. All
  these devices are not working any more.

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