Why not go with Linux 3.19 ? You can just install it by running:
sudo apt-get install linux-generic-lts-vivid It is by far, much more stable than Linux 3.13 (specially the network stack)... ;-) On 6 October 2015 at 11:36, Jim <ubuntu...@go-draytek.ca> wrote: > This is NOT fixed by 3.13.0-33.58. It continues to persist even with > 3.13.0-65.106 (and 3.13.0-63.103). > > I have around 10 VMs running but ONE in particular disconnects from the > network every hour or so. > > I had this issue previously but it was initially gone on Ubuntu 14.04 > LTS but had come back recently - perhaps some kernel regression ? > > dmesg shows > > [42524.196629] kvm: zapping shadow pages for mmio generation wraparound > [42538.140013] br0: port 2(vnet0) entered learning state > [42538.268017] br1: port 2(vnet1) entered learning state > [42553.180008] br0: topology change detected, propagating > [42553.180015] br0: port 2(vnet0) entered forwarding state > [42553.308008] br1: topology change detected, propagating > [42553.308014] br1: port 2(vnet1) entered forwarding state > > (and NIC connection is gone) > > It's not clear if this is just co-incidence or if this is a pointer to > the issue. > > This VM is unusual in my VMs becuase it is the only one with 2 NIC > connections to br1 and br0. All the others connect to just br0. Those > others work OK. > > Happy to try suggestions to track this down. > > -- > You received this bug notification because you are subscribed to a > duplicate bug report (1341195). > https://bugs.launchpad.net/bugs/1346917 > > Title: > Using KSM on NUMA capable machines can cause KVM guest performance and > stability issues > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1346917/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1346917 Title: Using KSM on NUMA capable machines can cause KVM guest performance and stability issues To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1346917/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
