From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 42829] KVM Guest with virtio network driver loses network
connectivity
Date: Wed, 7 Mar 2012 12:40:16 GMT
Message-ID: <201203071240.q27CeGbT009709@bugzilla.kernel.org>
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Steve changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |CODE_FIX
--- Comment #16 from Steve 2012-03-07 12:40:15 ---
Thank you for information.
Today I test v3.3-rc6+ from today morning: the same version on host and guest
also latest seabios, qemu-kvm, net-tools, util-linux, kmod, udev.
Now it works correctly after few hours under huge network traffic load
both directions in paralell without any network issue.
Bellow are my arguments for tested guest running on testing host:
-----------------------------------------------------------------
${VPS}
-nodefaults
-name ${VPS_NAME}
-chroot ${VPS_CHROOT}
-runas ${VPS_USER}
-pidfile ${VPS_PIDFILE}
-vnc ${VPS_WAN}:0
-vga std --full-screen
-smp ${VPS_CPU} -m ${VPS_MEM} -cpu host
-mem-path /hugepages -mem-prealloc
-enable-kvm -daemonize -rtc base=localtime,clock=host,driftfix=none
-balloon ${VPS_BALLOON}
-netdev tap,id=nic01,ifname=${VPS_NET_IF_NAME},
script=/etc/kvm/kvm-ifup,downscript=/etc/kvm/kvm/ifdown,
vnet_hdr=on,vhost=on,vhostforce=off
-device virtio-net-pci,netdev=nic01,mac=${VPS_MAC}
-drive aio=native,index=0,media=disk,cache=none,
if=${VPS_DRIVE_IF_TYPE},file=${VPS_IMG}
-boot order=c,menu=off &
lsmod on guest (lsmod | grep virtio):
virtio_net 12477 0
virtio_balloon 4216 0
virtio_blk 6313 3
virtio_pci 6983 0
virtio 3282 4 virtio_pci,virtio_blk,virtio_balloon,virtio_net
virtio_ring 4154 4 virtio_pci,virtio_blk,virtio_balloon,virtio_net
lspci on guest (lspci):
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Device 1234:1111
00:03.0 RAM memory: Red Hat, Inc Virtio memory balloon
00:04.0 Ethernet controller: Red Hat, Inc Virtio network device
00:05.0 SCSI storage controller: Red Hat, Inc Virtio block device
I try to test older guest kernels with above setup.
Thank you for your time & cooperation.
Have a nice day.
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