I've seen a couple crashes on a ThunderX CRB1S system - though at this point I don't have reason to believe it is related to KPTI. This system happened to be installed with LVM + crypted home, and we haven't ran the cert tests on such a config before. After the remaining tests complete, I plan to re-run with the pre-kpti kernel on this config, as well as running cert on the "usual" config w/ a kpti kernel. I was only able to capture the console of one of the crashes, I'll attach it here.
I also have a cert run still in-progress from a Gigabyte R120. This system is very similar to the CRB1S, and has not seen any problems yet. ** Attachment added: "thunderx panic console log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5066573/+files/console.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/1749040 Title: KPTI support for arm64 systems Status in linux package in Ubuntu: Incomplete Status in linux source package in Artful: In Progress Status in linux source package in Bionic: Incomplete Bug description: While regression testing the current linux-hwe proposed kernel (4.13.0-33.36~16.04.1), I found that it fails to boot on a Cavium ThunderX CRB. I've rebooted twice since upgrading from the current -updates kernel, and it's failed to boot both times, with different failure modes. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+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
