This is in response to a request in:
https://bugzilla.redhat.com/show_bug.cgi?id=665293
In short, under heavy load, it's possible for qemu's networking to
lock up due to the tap device's default 1MB sndbuf being
inadequate. adding sndbuf=0 to the qemu commandline -netdevice
option will
On 01/14/2011 10:35 AM, Laine Stump wrote:
The sndbuf value is put inside a tune element of each interface in
the domain. The intent is that further tunable settings will also be
placed inside this element.
interface type='network'
...
tune
sndbuf0/sndbuf