We should be able to perform a kernel bisect to identify the commit that introduced this regression. You say this bug did not exist in 4.4.0-71, but it does exist in 4.4.0-87. To perform a bisect, we need to identify the last kernel version that did not have the bug and the first that did. Can you test the following kernel:
4.4.0-85: https://launchpad.net/~canonical-kernel- team/+archive/ubuntu/ppa/+build/12845707 ** Changed in: linux (Ubuntu) Importance: Medium => High ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => High ** Changed in: linux (Ubuntu Xenial) Status: New => Confirmed ** Tags added: performing-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1709626 Title: Kernel Oops - unable to handle kernel paging request; RIP is at free_pipe_info+0x57/0x90 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1709626/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
