Re: [libvirt] [PATCH] Enable tuning of qemu network tap device "sndbuf" size

2011-01-14 Thread Laine Stump
On 01/13/2011 04:21 PM, Eric Blake wrote: On 01/12/2011 11:45 PM, Laine Stump wrote: 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

Re: [libvirt] [PATCH] Enable tuning of qemu network tap device "sndbuf" size

2011-01-14 Thread Laine Stump
On 01/14/2011 08:27 AM, Daniel P. Berrange wrote: On Thu, Jan 13, 2011 at 01:45:29AM -0500, Laine Stump wrote: 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 d

Re: [libvirt] [PATCH] Enable tuning of qemu network tap device "sndbuf" size

2011-01-14 Thread Daniel P. Berrange
On Thu, Jan 13, 2011 at 01:45:29AM -0500, Laine Stump wrote: > 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 > inadequ

Re: [libvirt] [PATCH] Enable tuning of qemu network tap device "sndbuf" size

2011-01-13 Thread Eric Blake
On 01/12/2011 11:45 PM, Laine Stump wrote: > 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 "sndbu

[libvirt] [PATCH] Enable tuning of qemu network tap device "sndbuf" size

2011-01-12 Thread Laine Stump
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 allev