other: 0.092
network: 0.085
PID: 0.084
permissions: 0.082
socket: 0.082
device: 0.081
debug: 0.077
semantic: 0.076
performance: 0.068
vnc: 0.062
graphic: 0.059
boot: 0.053
files: 0.052
KVM: 0.047
network: 0.323
vnc: 0.151
KVM: 0.104
socket: 0.075
debug: 0.071
PID: 0.063
device: 0.053
files: 0.048
boot: 0.026
performance: 0.025
other: 0.024
semantic: 0.019
permissions: 0.011
graphic: 0.008

Network issue above 2.5.1.1

Hi,
WHen running a QEMU guest (Windows7) on a linux x86-64 server, the network stops working after some time for any version above 2.5.1.1

In 2.5.1.1, all is fine (no issue with network)
Any version ablve (trying 2.10.1 now), the application in windows stops accessing the internet after a while

THis is my starting line:
/usr/bin/qemu-system-x86_64 -machine pc-i440fx-1.7,accel=kvm -usb -usbdevice tablet -usbdevice keyboard -enable-kvm -cpu core2duo -smp 2 -drive file=winpro.qcow,index=0,media=disk,format=qco
w2 -m 4096 -vga vmware -vnc :3 -k en-us -device e1000,netdev=nic1 -netdev user,id=nic1,smb=/data/vps/files/,hostfwd=tcp::10053-:10053,hostfwd=tcp::3387-:3389 -rtc base=utc,clock=host -daemon
ize

Thisis my configure line:
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --enable-kvm --disable-gtk --disable-xen --disable-user --enable-vnc-sasl --disable-libusb --disable-debug-info --disable-spi
ce --enable-lzo --enable-pie --disable-werror --enable-linux-aio --enable-vhost-net --disable-tcmalloc --enable-vde --enable-nettle --disable-smartcard --enable-curl

On Sat, Oct 07, 2017 at 12:09:25PM -0000, Joan Moreau via Qemu-devel wrote:
> WHen running a QEMU guest (Windows7) on a linux x86-64 server, the network stops working after some time for any version above 2.5.1.1
> 
> In 2.5.1.1, all is fine (no issue with network)
> Any version ablve (trying 2.10.1 now), the application in windows stops accessing the internet after a while
> 
> THis is my starting line:
> /usr/bin/qemu-system-x86_64 -machine pc-i440fx-1.7,accel=kvm -usb -usbdevice tablet -usbdevice keyboard -enable-kvm -cpu core2duo -smp 2 -drive file=winpro.qcow,index=0,media=disk,format=qco
> w2 -m 4096 -vga vmware -vnc :3 -k en-us -device e1000,netdev=nic1 -netdev user,id=nic1,smb=/data/vps/files/,hostfwd=tcp::10053-:10053,hostfwd=tcp::3387-:3389 -rtc base=utc,clock=host -daemon
> ize
> 
> Thisis my configure line:
> ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --enable-kvm --disable-gtk --disable-xen --disable-user --enable-vnc-sasl --disable-libusb --disable-debug-info --disable-spi
> ce --enable-lzo --enable-pie --disable-werror --enable-linux-aio --enable-vhost-net --disable-tcmalloc --enable-vde --enable-nettle --disable-smartcard --enable-curl

Does tcpdump on the host show outgoing connections to an external IP
address (not a domain name)?  For example, try opening to
http://172.99.69.163/ from inside the guest and check that there is a
TCP SYN packet sent from the host to 172.99.69.163.

Do the hostfwd ports still work while internet access is down?

Stefan


[Expired for QEMU because there has been no activity for 60 days.]