qemu coredumps on any network activity

[Steve Franks]

On Mon, May 5, 2008 at 11:38 AM, Atanu Ghosh <atanu at icsi.berkeley.edu> wrote:
> Hi,
>
>  <http://monkey.org/freebsd/archive/freebsd-questions/200802/msg01649.html>
>
>  I am seeing the same problem, did you ever get to the bottom of this?
>
>   Atanu.
>

I switched to using a "tap" bridge instead.  I have not had any
problems with it.  FYI I am on FreeBSD 7.0-stable, amd64.

Steve

~/bin/qemu.sh:

sudo kldload kqemu if_tap if_bridge aio

sudo sysctl net.link.tap.user_open=1
sudo sysctl net.link.tap.devfs_cloning=1
sudo sysctl net.link.tap.up_on_open=1

# sudo ifconfig bridge0 destroy
# sudo ifconfig bridge1 destroy
# sudo ifconfig tap0 destroy
# sudo ifconfig tap1 destroy
# sudo ifconfig tap2 destroy
# sudo ifconfig tap3 destroy
# sudo ifconfig tap4 destroy
# sudo ifconfig tap5 destroy
# sudo ifconfig tap6 destroy
# sudo ifconfig tap7 destroy
# sudo ifconfig tap8 destroy
# sudo ifconfig tap9 destroy

sudo ifconfig bridge0 create
sudo ifconfig bridge0 addm vr0
# sudo ifconfig tap0 create
sudo ifconfig bridge0 addm tap0
sudo ifconfig bridge0 addm tap1
sudo ifconfig bridge0 addm tap2
sudo ifconfig bridge0 addm tap3
sudo ifconfig bridge0 addm tap4
sudo ifconfig bridge0 addm tap5
sudo ifconfig bridge0 addm tap6
sudo ifconfig bridge0 addm tap7
sudo ifconfig bridge0 addm tap8
sudo ifconfig bridge0 addm tap9
sudo ifconfig bridge0 up
sudo ifconfig vr0 up
sudo ifconfig tap0 up
sudo ifconfig tap1 up
sudo ifconfig tap2 up
sudo ifconfig tap3 up
sudo ifconfig tap4 up
sudo ifconfig tap5 up
sudo ifconfig tap6 up
sudo ifconfig tap7 up
sudo ifconfig tap8 up
sudo ifconfig tap9 up
sudo dhclient bridge0

sudo /etc/rc.d/devfs restart
sudo /etc/rc.d/sysctl restart

ifconfig

qemu -m 512 -net nic -net tap -hda /usr/local/share/qemu/drivec.img
-usb -usbdevice tablet &
# -usbdevice disk:/dev/da0 -hdb fat:/mnt/flash -std-vga &