@Tom- Thanks for reporting this and isolating the cause and the fix. Here's a test kernel which includes a backport of the fix commit. Could you please verify that it resolves the problem?:
https://kernel.ubuntu.com/~kamal/lp1843487/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1843487 Title: UIO: mutex used in interrupt handler causes crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1843487/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs