similar to: [ovs-dev] Flow Control and Port Mirroring

Hi, Back in October I reported that I noticed a problem whereby flow control breaks down when openvswitch is configured to mirror a port[1]. I have (finally) looked into this further and the problem appears to relate to cloning of skbs, as Jesse Gross originally suspected. More specifically, in do_execute_actions[2] the first n-1 times that an skb needs to be transmitted it is cloned first and

Hi, Back in October I reported that I noticed a problem whereby flow control breaks down when openvswitch is configured to mirror a port[1]. I have (finally) looked into this further and the problem appears to relate to cloning of skbs, as Jesse Gross originally suspected. More specifically, in do_execute_actions[2] the first n-1 times that an skb needs to be transmitted it is cloned first and

You posted to xen-ia64-devel & xen-ia64 (deleted the wrong word?) rather than xen-devel so I added that to the CC. On Thu, 2007-09-20 at 13:38 +0900, Simon Horman wrote: > On IA64 alloc_bootmem_low() can''t be called this early. > > Before alloc_bootmem_low() can be called init_bootmem(), which is called in > find_memory(). However xen_machine_kexec_setup_resources() is

Add a new constant ETH_P_802_3_MIN, the minimum ethernet type for an 802.3 frame. Frames with a lower value in the ethernet type field are Ethernet II. Also update all the users of this value that David Miller and I could find to use the new constant. Also correct a bug in util.c. The comparison with ETH_P_802_3_MIN should be >= not >. As suggested by Jesse Gross. Compile tested only.

This patch is for kexec-tools-testing-20080324. --- kexec/crashdump.c.org 2008-03-25 11:51:51.000000000 +0900 +++ kexec/crashdump.c 2008-03-26 09:29:20.000000000 +0900 @@ -110,10 +110,8 @@ return 0; } -/* Returns the physical address of start of crash notes buffer for a kernel. */ -int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len) +static int get_vmcoreinfo(char *kdump_info, uint64_t

Hi, all I want to reduce the checkpoint size of a VM by memory exclusion. I try to find out all the free pages by reference count at VMM-level, As they declared that: /* Page is on a free list: ((count_info & PGC_count_mask) == 0). */ , in struct page_info which is defined in /xen/include/asm-x86/mm.h, but unfortunately, all the pages in a idle VM accords with this condition.

The datasheet is available at http://download.intel.com/design/network/datashts/82599_datasheet.pdf See 'Table 9.7. VF PCIe Configuration Space' of the datasheet, the PCI Express Capability Structure of the VF of Intel 82599 10GbE Controller looks trivial, e.g., the PCI Express Capabilities Register is 0, so the Capability Version is 0 and pt_pcie_size_init() would fail. We should not

Hi Allen, Hi All, I''m looking into SR-IOV on Xen and in particular getting the VFs of the Intel 82756 initialised in dom0. One problem that I am coming up against is that the SRIOV extended PCIe capability does not show up for the PF (physical PCI function). Actually, the extended PCIe capability space doesn''t show up at all for any device. This seems to be related to a

skb is only NULL the first time around: it's more correct to test for being under-budget. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> diff -r 2a94425ac7d5 drivers/net/virtio_net.c --- a/drivers/net/virtio_net.c Thu Nov 15 13:47:28 2007 +1100 +++ b/drivers/net/virtio_net.c Thu Nov 15 23:10:44 2007 +1100 @@ -198,8 +198,8 @@ again: if (vi->num < vi->max / 2)

skb is only NULL the first time around: it's more correct to test for being under-budget. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> diff -r 2a94425ac7d5 drivers/net/virtio_net.c --- a/drivers/net/virtio_net.c Thu Nov 15 13:47:28 2007 +1100 +++ b/drivers/net/virtio_net.c Thu Nov 15 23:10:44 2007 +1100 @@ -198,8 +198,8 @@ again: if (vi->num < vi->max / 2)

The virtio_net driver currently deals with different versions and types of virtio net headers, such as virtio_net_hdr_mrg_rxbuf, virtio_net_hdr_v1_hash, etc. Due to these variations, the code relies on multiple type casts to convert memory between different structures, potentially leading to bugs when there are changes in these structures. Introduces the "struct skb_vnet_common_hdr" as

Dear All, My head is spinning and I fear I am trying to start this from far too far behind to keep ploughing on. Essentially we are having difficulty with our samba shares at work. We have moved to server 2k8 DCs and this seeems to have reeked havoc on our setup. Our difficulty seems to stem from authentication issues. We have bodged a work around though it is neither very secure nor indeed

Hello, I have defined an ovs network with libvirt (virsh net-define ovs.xml) and created a vm that will connect to that network with virt-install. Although the vm port appears normally if i do an ovs-vsctl show, when i try to set this port as a mirror port for all the traffic in the bridge, the command is executed normaly, but then i cannot see any traffic on the interface. Could you give me

Hello, I've got a very strange problem. Lately I've been setting up my linux servers for network (layer2) redundancy with a bridge interface containing two ethernet interfaces connecting to two switches. So far I didn't have any problems with it, but now a very strange thing happens with a new server I'm installing. The server is an ibm x346 having two onboard BCM5721 cards, the

The error that you're showing doesn't appear to be related to permissions; the "ovs-vsctl del-port" command requires that you specify the port that you want to delete. --Justin On Mar 6, 2014, at 2:05 AM, Vasiliy Tolstov <v.tolstov@selfip.ru> wrote: > Hello! How can i operate with openvswitch without root rights? > For example - i can add my user to kvm group and

On Thu, Jul 18, 2013 at 12:15 AM, Ben Pfaff <blp@nicira.com> wrote: > On Wed, Jul 17, 2013 at 6:06 AM, Qiu Yu <unicell@gmail.com> wrote: >> After some digging in openvswitch code. My wild guess is that vlan tag >> reconfiguring triggered iface_configure_qos (vswitchd/bridge.c), which >> in turn called netdev_set_policing to reset ingress policing rate. >>

Hi, my system got updated to libvirt 6.0.0 (from 5.6.0) this morning, and now I'm having problems starting VMs that make use of openvswitch portgroups. When I start a VM, I get this error message on virsh: > virsh # start testvm > error: Failed to start domain testvm > error: An error occurred, but the cause is unknown The system log contains: > Mar 30 09:45:39 tplinux

Michal Prívozník wrote: > Can you please turn on debug logs and share them? > > https://wiki.libvirt.org/page/DebugLogs Thanks for replying, I have downgraded libvirt back to version 5.6.0 (and VMs were again able to start), but I will try to reproduce the problem on another machine in the next few days and post the logs here. Thanks, Thomas

On 30. 3. 2020 11:10, Thomas Pircher wrote: > Hi, > > my system got updated to libvirt 6.0.0 (from 5.6.0) this morning, and > now I'm having problems starting VMs that make use of openvswitch > portgroups. I don't see any changes between 5.6.0 and now done to openvswitch in libvirt (apart from harmless code reworks towards glib). > > When I start a VM, I get this

On Wed, Jul 17, 2013 at 6:06 AM, Qiu Yu <unicell@gmail.com> wrote: > After some digging in openvswitch code. My wild guess is that vlan tag > reconfiguring triggered iface_configure_qos (vswitchd/bridge.c), which > in turn called netdev_set_policing to reset ingress policing rate. > Although there's no ingress_policing_rate set in my case, existing > ingress qdisc still