This is probably a duplicate of: https://bugs.launchpad.net/ubuntu/+source/xen-3.3/+bug/154271
I always disable tx checksumming on xen domu's to avoid this problem. I would be curious to hear from chris lea as to what exactly breaks when doing this. I have never noticed any problems with incorrect packets being sent out. My understanding is that with tx checksumming off only the hardware assistance is disabled and tx checksumming is then handled by software (by the kernel I assume). For people who want to see if they are being affected by bug 154271 you should enable tx checksumming on the domU, run tcpdump during a large network transfer, and look for packets larger than 1500 bytes being sent. -- networking stalls between domU using vif https://bugs.launchpad.net/bugs/246789 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs