Hi Joe, For the v2 test kernel for Trusty from comment #11:
The kernels 3.13 and 3.19 at least from our testing might not be affected by this bug as those don't have any receive checksum offloading, and therefore the patch here is not applicable. Even with the cherry-pick, the behavior with only the patch for "fix incorrect receive checksum offloading" and the related dependencies, a file copy over scp is not completing. So please do not backport this patch to Trusty / kernel 3.13 and/or 3.19. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1636656 Title: [Hyper-V] netvsc: fix incorrect receive checksum offloading Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: In Progress Status in linux source package in Vivid: Fix Released Status in linux source package in Xenial: Fix Released Status in linux source package in Yakkety: Fix Committed Bug description: The Hyper-V netvsc driver was looking at the incorrect status bits in the checksum info. It was setting the receive checksum unnecessary flag based on the IP header checksum being correct. The checksum flag is skb is about TCP and UDP checksum status. Because of this bug, any packet received with bad TCP checksum would be passed up the stack and to the application causing data corruption. The problem is reproducible via netcat and netem. This had a side effect of not doing receive checksum offload on IPv6. The driver was also also always doing checksum offload independent of the checksum setting done via ethtool. Signed-off-by: Stephen Hemminger <sthem...@microsoft.com> https://patchwork.ozlabs.org/patch/685660/ When this patch is committed I will include the commit ID in this bug. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636656/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
