** Attachment added: "eth0 (ixgbe) connected to the switch and another ixgbe on another system" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1291660/+attachment/4032864/+files/eth0_switch.log
-- 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/1291660 Title: Intel ixgbe driver doesn't work at 10Gb speeds Status in “linux” package in Ubuntu: Incomplete Bug description: I have a fresh install of 12.04.4 on an IBM server with an Intel 10GbE card (actually I have seen this on TWO systems, one with a PCIe 10GbE card and one with a mezzanine add-in card that has the same chipset). 12.04.4 ships with ixgbe version 3.13.10-k Initially, when the ethernet device comes up, it sets itself at 1Gb not 10Gb. If you do an ethtool on one of the devices, they clearly show supported speeds of 100, 1000 and 10000Mb/s as well as advertised speeds of that nature. Also, ethtool clearly shows the current speed at 1000 . now, if you force the card to a speed of 10000 like so: sudo ethtool -s eth0 speed 10000 duplex full Ethtool will NOW show "Unknown!" for speed and duplex settings, and will drop the link. The link will restore, as will the rest of the output, if you put the card back to the 1000Mb/s speed. Thus, the ixgbe driver seems to be broken. I tried to use apport to file this bug, however apport told me that the linux and linux-image-generic packages are NOT official Ubuntu packages, and refused to create the report for me. Thus, I gathered what i could via sosreport and some other means, which I am attaching below. This will gate any certification that uses the Intel 10Gb NICs (seen onboard at least a couple server systems now). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1291660/+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
