Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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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
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