I'd like to provide a better backtrace if it's needed, but I'm not sure how to do this.
Attaching lspci -vnvn ** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1709511/+attachment/4929105/+files/lspci-vnvn.log -- 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: New 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
