Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.80 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: kernel-da-key needs-bisect ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1709511 Title: Kernel 4.4.0-89 panics on boot on xenial Status in linux package in Ubuntu: Incomplete Bug description: After applying the 4.4.0-89 kernel update, I get a panic on boot. 4.4.0-87 boots normally. I expected that 4.4.0-89 would boot normally (as 4.4.0-87) instead of crashing. Systemd displays an announcement: "Starting udev Wait for Complete Device Initialization...", then I get: * "kobject: can not set name properly!" * "BUG: unable to handle kernel null pointer dereference at 00000000 * A kernel error backtrace Part of the backtrace is (I'm having to enter this from a video): Call Trace: [ffffffff81258ff3] ep_alloc+0x43/0xe0 [ffffffff81259162] SyS_epoll_create1+0x42/0xe0 [ffffffff81841f32] entry_SYSCALL_64_fastpath+0x16/0x71 RIP [ffffffff811ed65b] kmem_cache_alloc_trace+0x7b/0x1f0 Kernel panic - not syncing: CRED: put_cred_rcu() sees ffff880231fc3cc0 with usage -1 lsb_release -rd: Description: Ubuntu 16.04.3 LTS Release: 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1709511/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
