[Bug 64601] Whole system crashes when sharing network card in virtual PC only on kernel 3.11

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=64601

--- Comment #3 from Ryan Gralinski <ryan@gralinski.com> ---
i am using the virtual machine manager, i dont know what the libvirt.xml you
want is but when i launch it this is the process it runs

/usr/bin/qemu-system-x86_64 -machine accel=kvm -name Windows7 -S -machine
pc-i440fx-1.4,accel=kvm,usb=off -m 3000 -smp 2,sockets=2,cores=1,threads=1
-uuid ed2e9111-fc57-f64c-bbb0-c86de3a64bf4 -no-user-config -nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/Windows7.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
-no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device
virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive
file=/var/lib/libvirt/images/Windows_7.img,if=none,id=drive-ide0-0-0,format=raw
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1
-netdev tap,fd=26,id=hostnet0 -device
rtl8139,netdev=hostnet0,id=net0,mac=00:00:00:00:01:43,bus=pci.0,addr=0x6
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0
-chardev spicevmc,id=charchannel0,name=vdagent -device
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0
-device usb-tablet,id=input0 -spice
port=5901,addr=127.0.0.1,disable-ticketing,seamless-migration=on -vga qxl
-global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=67108864 -device
intel-hda,id=sound0,bus=pci.0,addr=0x3 -device
hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -incoming fd:24 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

my kernel upgraded to 3.11.7-200 and still does the same thing, i just tried
again on one of my 64 bit computers i tried kernels 3.9.5-301, 3.9.8-300,
3.9.9-302 and the virtual machine above runs perfectly fine.

i tried on 3.11.1-200, 3.11.3-201, 3.11.6-200, and now 3.11.7-200 and they all
freeze the host.... if i remove the hardware, and add it as a virtual network
it will work, if i remove the hardware and then boot the virtual pc, and add
the hardware while its running, as soon as i add it, the host freezes up have
to hard reset. 

Thanks.

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