[Regression testing on Xenial AMD64]
AMD64 kernel already has kexec support on Xenial. The attached patch applies
cleanly and builds on AMD64: https://pastebin.ubuntu.com/23950437/
== Installed kexec-tools built with ARM64 enablement patches ==
ubuntu@test:~$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.10-1ubuntu2.1 amd64
tools to support fast kexec reboots
ubuntu@test:~$
== Load kexec kernel and initiate kexec ==
ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.4.0-62-generic
--initrd=/boot/initrd.img-4.4.0-62-generic --append="root=LABEL=cloudimg-rootfs
ro console=ttyS0"
ubuntu@test:~$ sudo kexec -e
== Successfully live booted kernel ==
Ubuntu 16.04.1 LTS test ttyS0
test login: [ 18.860792] kexec_core: Starting new kernel
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.4.0-62-generic (buildd@lcy01-30) (gcc version
5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #83-Ubuntu SMP Wed Jan 18
14:10:15 UTC 2017 (Ubuntu 4.4.0-62.83-generic 4.4.40)
[ 0.000000] Command line: root=LABEL=cloudimg-rootfs ro console=ttyS0
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] x86/fpu: Legacy x87 FPU detected.
[ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to kexec-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1659618
Title:
Enable ARM64 support in kexec-tools
Status in kexec-tools package in Ubuntu:
Fix Released
Status in kexec-tools source package in Xenial:
In Progress
Status in kexec-tools source package in Yakkety:
In Progress
Status in kexec-tools package in Debian:
Fix Released
Bug description:
[IMPACT]
* kexec-tools in Xenial (16.04) currently does not support ARM64
architecture.
* Backport support for ARM64 arch from upstream
https://github.com/horms/kexec-tools
* Majority of the patches are contained in kexec/arch/arm64/ except for
one patch that impacts purgatory and common device tree routines.
[TEST CASE]
* I built kexec-tools for ARM64 and tested it on HW using the following
testcase:
$ sudo kexec -l /boot/vmlinuz-<version>-generic
--initrd=/boot/initrd.img-<version>-generic
--command-line="root=UUID=<uuid> ro vt.handoff=7"
$ sudo kexec -e
* I was able to kexec the new kernel successfully.
* [ 6702.357899] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x200
[ 0.000000] Linux version <version>-generic (buildd@bos01-arm64-008)
(gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) )
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[REGRESSION POTENTIAL]
* Since patches are confined to arm[64] there is a low overall risk of
regression.
[OTHER INFO]
* You can find a Xenial kexec-tools package built for AMD64, i386 and
ARM64 in my PPA
https://launchpad.net/~manjo/+archive/ubuntu/kexec-tools
* This package is built using the Xenial source package for kexec-tools
with ARM64 enablement patches applied.
* Please pull the changes from my PPA package and integrate into Ubuntu
Xenial kexec-tools after review.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1659618/+subscriptions
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