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guest hangs after use ethtool to set scatter-gather on
On the guests, i have a rtl8139 nic, I use ethtool to set scatter-gather on ( ethtool -K eth0 sg on ),
after that, at host side, I use scp to send a file into guest. As a result, guest hang.
At that point qemu is using 100% of one host CPU, about 100% guest.
If guest is centOS6.5， with no problem.
The guest system is Fedora release 19(Kernel 3.11.10-200.fc19.x86_64).
host system is debian 7.1.
Kernel:3.10.0
Qemu: 2.3.0
cmd:
/boot/qemu-2.3.0-bin/qemu-system-x86_64 -vnc :13 -enable-kvm -name fedora -smp sockets=1,cores=2 -cpu core2duo -nodefaults -vga cirrus -k en-us -boot menu=on,splash-time=8000 -m 2048 -usb -drive file=/boot/vm-disk-1.qcow2,if=none,id=drive-ide0,cache=none,aio=native -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=100 -netdev type=tap,id=net0,ifname=200,script=/etc/kvm/vtp-bridge -device rtl8139,romfile=,mac=FE:FC:FE:5C:58:65,netdev=net0,bus=pci.0,addr=0x12,id=net0
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