The commit for "uio: fix crash after the device is unregistered" in this bug introduces another bug which is fixed upstream in the kernel. It adds an illegal mutex_lock in uio_interrupt() in uio.c. This completely breaks interrupt handling in UIO.
I opened the following bug to track this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1843487 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837664 Title: Bionic update: upstream stable patchset 2019-07-23 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837664/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
