Looking at the git log - I wonder if this could be related?
commit 94bb804e1e6f0a9a77acf20d7c70ea141c6c821e Author: Pavel Tatashin <[email protected]> Date: Tue Nov 19 17:10:06 2019 -0500 arm64: uaccess: Ensure PAN is re-enabled after unhandled uaccess fault It's interesting because ThunderX is somewhat unique in our test cluster as not having HW PAN. We also only recently merged this into our 4.15 tree - Ubuntu-4.15.0-73.82 was the first tree to have it. I'll restart testing on our latest 4.15 (w/ this patch) to see if the issue persists. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860013 Title: [thunderx] Synchronous External Abort: synchronous parity or ECC error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860013/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
