Joseph, Patch is not accepted by upstream and below is the comment from one of the reviewer,
There seems to be problem with this patch. bdi_unregister() is also called by blk_cleanup_queue(), and both that and del_gendisk() may be called by cleanup_mapped_device(). This results in a panic when bdi_unregister() is called for the second time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1581326 Title: Kernel crashed while Creating a second RAID volume on Ubuntu 16.04 OS. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1581326/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
