There's been some discussion of this already in the kvm list, but I want to
summarize what I've found and also include the qemu-devel list in an effort to
find a solution to this problem.
Running a netperf test between two kvm guests results in the guest's network
interface shutting down. I or
Hi,
we're currently having this problem on two production servers
that 2-4 times a day one interface shuts down. We've four KVMs
running on two hosts (2x2). All VMs have eth0 and eth1 running virtio_net.
All eth0's are connected to bridge br0 and all eth1's are connected to
br1 on the host. Here a
Hi,
thanks for that! I've running a lot of hosts still running with
kernel 2.6.30 and KVM 88 without problems. It seems that
all qemu-kvm versions >= 0.11.0 have this problem incl.
the latest 0.12.2. So if one of the enterprise distributions
will choose one of this versions for inclusion in there
Fix a race condition where qemu finds that there are not enough virtio
ring buffers available and the guest make more buffers available before
qemu can enable notifications.
Signed-off-by: Tom Lendacky
Signed-off-by: Anthony Liguori
hw/virtio-net.c | 10 +-
1 files changed, 9 insert
On 02/08/2010 10:10 AM, Tom Lendacky wrote:
Fix a race condition where qemu finds that there are not enough virtio
ring buffers available and the guest make more buffers available before
qemu can enable notifications.
Signed-off-by: Tom Lendacky
Signed-off-by: Anthony Liguori
I've walked t
On Mon, Feb 08, 2010 at 10:10:01AM -0600, Tom Lendacky wrote:
>
> Fix a race condition where qemu finds that there are not enough virtio
> ring buffers available and the guest make more buffers available before
> qemu can enable notifications.
>
> Signed-off-by: Tom Lendacky
> Signed-off-by: Ant
Thanks for the patch! It seems to solve the problem that
under load (> 50 MBit/s) the network goes down. I've applied
the patch to KVM 0.12.2 running Gentoo. Host and guest is running
kernel 2.6.32 currently (kernel 2.6.30 in guest and 2.6.32 in
host works also for us).
Another host doing the same
On 02/08/2010 10:10 AM, Tom Lendacky wrote:
Fix a race condition where qemu finds that there are not enough virtio
ring buffers available and the guest make more buffers available before
qemu can enable notifications.
Signed-off-by: Tom Lendacky
Signed-off-by: Anthony Liguori
Applied. Tha
