| 2018-04-13 09:28:10 |
Paolo Pisati |
bug |
|
|
added bug |
| 2018-04-13 09:30:11 |
Ubuntu Kernel Bot |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2018-04-13 09:31:25 |
Paolo Pisati |
attachment added |
|
0001-UBUNTU-Config-arm64-disable-BPF_JIT_ALWAYS_ON.patch https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763644/+attachment/5113597/+files/0001-UBUNTU-Config-arm64-disable-BPF_JIT_ALWAYS_ON.patch |
|
| 2018-04-13 09:36:02 |
Paolo Pisati |
description |
[Impact]
The Ubuntu-4.4.0-120.144 kernel (now in -proposed) fails to boot on all arm64 hardware: no console output or any other sign of activity, the system freeze just after the bootloader loads vmlinuz, and jumps to it.
We first experienced it on the snapdragon kernel snap in -beta (dragonboard 410c) but the bug is arm64 generic, and it affects all the arm64 hardware: a thunderx board shows the same exact symptoms.
[How to test]
Apply the attached patch, recompile, install and boot.
[Regression potential]
None, since the kernel already fails to boot. |
[Impact]
The Ubuntu-4.4.0-120.144 kernel (now in -proposed) fails to boot on all arm64 hardware: no console output or any other sign of activity, the system freeze just after the bootloader loads vmlinuz, and jumps to it.
We first experienced it on the snapdragon kernel snap in -beta (dragonboard 410c) but the bug is arm64 generic, and it affects all the arm64 hardware: a thunderx board shows the same exact symptoms.
The regression came down as part of the 4.4.115 stable update ("79e83d1 bpf: introduce BPF_JIT_ALWAYS_ON config") and enabled this option that crashes the arm64 kernel on boot.
[How to test]
Apply the attached patch, recompile, install and boot.
[Regression potential]
None, since the kernel already fails to boot. |
|
| 2018-04-13 10:25:34 |
Andrew Cloke |
bug |
|
|
added subscriber Andrew Cloke |
| 2018-04-13 12:06:38 |
Kleber Sacilotto de Souza |
nominated for series |
|
Ubuntu Xenial |
|
| 2018-04-13 12:06:38 |
Kleber Sacilotto de Souza |
bug task added |
|
linux (Ubuntu Xenial) |
|
| 2018-04-13 12:07:00 |
Kleber Sacilotto de Souza |
linux (Ubuntu Xenial): status |
New |
In Progress |
|
| 2018-04-13 12:25:40 |
Ubuntu Foundations Team Bug Bot |
tags |
|
patch |
|
| 2018-04-13 12:25:41 |
Ubuntu Foundations Team Bug Bot |
bug |
|
|
added subscriber Joseph Salisbury |
| 2018-04-13 12:35:49 |
Kleber Sacilotto de Souza |
bug task added |
|
linux-snapdragon (Ubuntu) |
|
| 2018-04-13 12:36:01 |
Kleber Sacilotto de Souza |
linux-snapdragon (Ubuntu Xenial): status |
New |
In Progress |
|
| 2018-04-13 12:41:27 |
Dominique Poulain |
bug |
|
|
added subscriber Dominique Poulain |
| 2018-04-13 13:38:11 |
Kleber Sacilotto de Souza |
linux (Ubuntu Xenial): status |
In Progress |
Fix Committed |
|
| 2018-04-13 15:39:09 |
Kleber Sacilotto de Souza |
linux-snapdragon (Ubuntu Xenial): status |
In Progress |
Fix Committed |
|
| 2018-04-16 13:50:05 |
Brad Figg |
tags |
patch |
patch verification-needed-xenial |
|
| 2018-04-17 14:04:40 |
Kleber Sacilotto de Souza |
tags |
patch verification-needed-xenial |
patch verification-done-xenial |
|
| 2018-04-23 08:22:44 |
Launchpad Janitor |
linux (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
|
| 2018-04-23 08:22:44 |
Launchpad Janitor |
cve linked |
|
2017-5715 |
|
| 2018-04-23 08:22:44 |
Launchpad Janitor |
cve linked |
|
2017-5754 |
|
| 2018-04-23 09:07:48 |
Launchpad Janitor |
linux-snapdragon (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
|
| 2018-04-23 09:07:48 |
Launchpad Janitor |
cve linked |
|
2018-8043 |
|
| 2018-05-03 02:04:18 |
Launchpad Janitor |
linux-snapdragon (Ubuntu): status |
New |
Fix Released |
|
