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Diffstat (limited to 'results/classifier/108/other/1377095')
| -rw-r--r-- | results/classifier/108/other/1377095 | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/results/classifier/108/other/1377095 b/results/classifier/108/other/1377095 new file mode 100644 index 000000000..c16550181 --- /dev/null +++ b/results/classifier/108/other/1377095 @@ -0,0 +1,145 @@ +other: 0.959 +graphic: 0.958 +semantic: 0.950 +permissions: 0.949 +debug: 0.946 +PID: 0.934 +performance: 0.932 +device: 0.930 +vnc: 0.926 +network: 0.922 +socket: 0.919 +boot: 0.910 +KVM: 0.892 +files: 0.890 + +KVM guest VM does not reattach a throughpassed USB printer from Host after switching printer off and on + + +Host OS: Gentoo, all packages built 2014-10-01 + +qemu version 2.1.0-r1 + +Linux kernel 3.14.14 x86_64 Intel(R) Core(TM) i3-3220T CPU @ 2.80GHz GenuineIntel GNU/Linux + + +Guest VM: Debian 7 (Wheezy) Linux 3.2.0 686 + + +Start command: +/usr/bin/qemu-system-i386 -enable-kvm -name wheezy -k de -serial null -parallel null -hda /var/kvm/wheezy.kvm-img -daemonize -net nic,macaddr=02:00:00:00:01:31 -net tap,ifname=tap3,script=no,downscript=no -m 512 -pidfile /var/run/kvm/wheezy.pid -usb -usbdevice tablet -runas myuser -vnc 127.0.0.1:3 -usbdevice host:04e8:3242 + +Problem: +USB printer pass-through from KVM host to guest vm only works if I start the qemu kvm when the USB printer (vendor/product ID 04e8:3242) is switched on and therefore shown in lsusb on the host. Then it is available in the started VM. + +But when I switch the usb printer attached to the host off, it disappears in lsusb both on the host and the VM (as expected) but when I switch the USB printer on again, it is shown on the host and also on the QEMU Monitor (Crtl Alt Shift 2 -> info usbhost), but in the VM lsusb does not show it again- so USB pass-through / hot plugging does not work. It worked with a previous Version of qemu (1.0 or something). + +That is very annoying, because every time I want to print something, I need to shutdown the VM, start the printer, and then start the VM (which runs cups as printer server). +But after printing, I do not want the printer to keep running, so I switch it off. + +This is a very annoying bug, and it is still not solved after six months, last versions tested with the bug: + +KVM host qemu version 2.2.1 + +KVM host Linux version 3.14.37 + +Please fix this. + +This is a very annoying bug, and it is still not solved after 2.7 years. +Last versions tested and affected by this bug: + +KVM host qemu version 2.9.0 + +KVM host Linux version 4.9.6 x86_64 + +Please fix this. + + +I guess switching the printer off and on again is like attaching a new USB device to your host (so it only shows up in the host, of course, and not in the guest). Have you already tried to do a new "device_add usb-host,..." in the QEMU monitor to attach it to the guest again while the VM is running? + +Thanks Thomas for Your suggestion. Unfortunately I cannot achieve the reconnection: + +KVM runs with following parameters: + +-usb -device usb-host,vendorid=0x04e8,productid=0x3242,id=drucker -monitor unix:qemu-monitor-socket,server,nowait + +With the Unix socket, I can now pipe commands to the qemu monitor. This info command works: + +echo 'info status' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) info status +VM status: running + +What I have is this: +- disconnect USB printer (Product Samsung ML-1510_700) +- stop KVM +- connect USB printer +- start KVM + +echo 'info usb' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) info usb + Device 0.1, Port 1, Speed 12 Mb/s, Product QEMU USB Tablet + Device 0.2, Port 2, Speed 12 Mb/s, Product QEMU USB Hub + Device 0.3, Port 2.1, Speed 12 Mb/s, Product Samsung ML-1510_700, ID: drucker + +Printer works. +- disconnect printer + +echo 'info usb' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) info usb + Device 0.2, Port 1, Speed 12 Mb/s, Product QEMU USB Tablet + Device 0.3, Port 2, Speed 12 Mb/s, Product QEMU USB Hub + Device 0.4, Port 2.1, Speed 12 Mb/s, Product Samsung ML-1510_700, ID: drucker + +USB Info still shows the printer, allthough it is disconnected. + +Remove device from KVM: + +echo 'device_del drucker' | socat - unix-connect:/qemu-monitor-socket + +Printer is removed from the device list: + +info usbdrucker' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) info usb + Device 0.2, Port 1, Speed 12 Mb/s, Product QEMU USB Tablet + Device 0.3, Port 2, Speed 12 Mb/s, Product QEMU USB Hub + +-connect printer + +printer is not shown: + +echo 'info usb' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) info usb + Device 0.2, Port 1, Speed 12 Mb/s, Product QEMU USB Tablet + Device 0.3, Port 2, Speed 12 Mb/s, Product QEMU USB Hub + +Add printer device: + +echo 'device_add usb-host,vendorid=0x04e8,productid=0x3242,id=drucker ' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) device_add usb-host,vendorid=0x04e8,productid=0x3242,id=drucker + +echo 'info usb' | socat - unix-connect:/qemu-monitor-socket +QEMU 4.2.0 monitor - type 'help' for more information +(qemu) info usb + Device 0.2, Port 1, Speed 12 Mb/s, Product QEMU USB Tablet + Device 0.3, Port 2, Speed 12 Mb/s, Product QEMU USB Hub + Device 0.0, Port 2.2, Speed 1.5 Mb/s, Product USB Host Device, ID: drucker + +Device is shown, but not like when KVM is started with connected printer: Speed only 1.5 Mb/s, no vendor and product info. + +Printer does _not_ work. + + + +This is an automated cleanup. This bug report has been moved to QEMU's +new bug tracker on gitlab.com and thus gets marked as 'expired' now. +Please continue with the discussion here: + + https://gitlab.com/qemu-project/qemu/-/issues/110 + + |