Re: Crash in skb_segment / KVM GSO GRE IPV6

2015-11-26 Thread Oliver Francke
Hi, well, I think this is a serious bug, as I can crash a complete linux host running hundreds of VMs from within a QEMU-guest only. All I can add here is a test-setup where I can try out possible fixes without disturbing others. The only things that helps out ATM is switch all eth-offloading off,

Crash in skb_segment / KVM GSO GRE IPV6

2015-11-14 Thread Florian Lohoff
Hi, we experienced a reproducible crash on a KVM/qemu Host running Kernel 4.3.0 in skb_segment. (Setup is kvm guest, openvswitch 1.9 up to 2.something, host on 4.3.0). User in the guest kvm with virtio reportedly tried to set up an v4 GRE tunnel with IPv6 Addresses and as soon as he started a si