Hi Stefan,
thanks for your attention. See all infos below including complete
command-line.
Thnx,
Oliver.
-------- Original Message --------
Subject: [Qemu-stable] connectivity problem with Windows 7 + heavy
network-traffic
Date: Wed, 08 May 2013 10:04:19 +0200
From: Oliver Francke <oliver.fran...@filoo.de>
To: qemu-sta...@nongnu.org <qemu-sta...@nongnu.org>
Hi,
I have a couple of reports vom people, where the network-link goes down.
I did some live-migration, and the RTL8139 card was connected again, up
to the next traffic-burst.
( just cmd, one ftp download + two uploads parallel... let it run for
couple of minutes until drop...)
No way within windows to recover the card except reboot.
All is fine with qem-1.2.0, I have no problem to make some exceptions
for these VM's, but cool would
be some possibility to narrow down the problem, which is there in
qemu-1.3.x up to 1.5.0-rc0.
The host is for example an AMD opteron 6172 ( 24 cores).
Switch is openvswitch-1.9.x, nothing special.
Here my call to qemu:
/usr/local/qemu-1.5.0/bin/qemu-system-x86_64 -usbdevice tablet
-enable-kvm -daemonize -pidfile /var/run/qemu-server/761.pid -monitor
unix:/var/run/qemu-server/761.mon,server,nowait -vnc
unix:/var/run/qemu-server/761.vnc,password -qmp
unix:/var/run/qemu-server/761.qmp,server,nowait -nodefaults -serial none
-parallel none -device rtl8139,mac=00:F1:70:00:2F:90,netdev=vlan0d0
-netdev
type=tap,id=vlan0d0,ifname=tap761i0d0,script=/etc/fcms/add_if.sh,downscript=/etc/fcms/downscript.sh
-name 1155823384-4 -m 2048 -vga cirrus -k de -smp sockets=1,cores=2
-device virtio-blk-pci,drive=virtio0 -drive
format=raw,file=rbd:1155823384/vm-761-disk-1.rbd:rbd_cache=false,cache=writeback,if=none,id=virtio0,media=disk,index=0
-drive
format=raw,file=rbd:1155823384/vm-761-swap-1.rbd:rbd_cache=false,cache=writeback,if=virtio,media=disk,index=1
-drive if=ide,media=cdrom,id=ide1-cd0 -drive
if=ide,media=cdrom,id=ide1-cd1 -rtc base=localtime -no-hpet -bootorder=dc
No problems whatsoever with all Linux-distros ( running hundreds of
them). I left out the -rtc and -no-hpet, not any better.
Any comments and help welcome,
Oliver.
--
Oliver Francke
filoo GmbH
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