Enable ARM64 support in kexec-tools

[Manoj Iyer]

[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.

[dann frazier (dannf)]

Thanks Manoj! A few comments on your prepared package.

- We need to fix in zesty and yakkety as well as xenial
- Version for xenial should be 1:2.0.10-1ubuntu2.1
- Is arm64_build.patch needed? I know we had to add it to Debian for compat w/ sid's toolchain, but I'm not sure we need it for Ubuntu or xenial (though it shouldn't hurt anything).
- There appears to be unncecessary changes to the other debian/patches files - like they were all regenerated. Can you avoid that to cleanup the debdiff for sru-team?

Other than that - looks good. Backport appears clean/straightforward.

[Manoj Iyer (manjo)]

Updated changelog to refer to LP: #1659618

new debdiff attached.

[Manoj Iyer (manjo)]

[TESTING ON ARM64 HARDWARE]

$ cat /etc/issue
Ubuntu 16.04.1 LTS \n \l

$ sudo apt-add-repository ppa:manjo/kexec-tools
$ sudo apt update
$ sudo apt install kexec-tools
$ kexec --version
kexec-tools 2.0.10 released 26 January 2017

$ ls /boot
abi-4.7.0-2-generic grub System.map-4.7.0-2-generic
config-4.7.0-2-generic initrd.img vmlinuz
efi initrd.img-4.7.0-2-generic vmlinuz-4.7.0-2-generic

$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.7.0-2-generic root=UUID=4f520e6e-6b21-460e-9c2b-332b188e393b ro splash quiet vt.handoff=7

$ sudo kexec -l /boot/vmlinuz-4.7.0-2-generic --initrd=/boot/initrd.img-4.7.0-2-generic --command-line="root=UUID=4f520e6e-6b21-460e-9c2b-332b188e393b ro vt.handoff=7"

$ sudo kexec -e
[ 76.658975] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x200
[ 0.000000] Linux version 4.7.0-2-generic (buildd@bos01-arm64-008) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #5~pdaw1.1+<redacted>.2-Ubuntu SMP Fri Jan 13 18:38:31 UTC 2017 (Ubuntu 4.7.0-2.5~pdaw1.1+<redacted>.2-generic 4.7.0)
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]

$ uname -a
Linux pdaw1 4.7.0-2-generic #5~pdaw1.1+<redacted>.2-Ubuntu SMP Fri Jan 13 18:38:31 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux

$ cat /proc/cmdline
root=UUID=4f520e6e-6b21-460e-9c2b-332b188e393b ro vt.handoff=7

[Manoj Iyer (manjo)]

The above test was that of the kexec-tools package that includes review comments from dannf.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "updated debdiff - changelog referring to LP# 1659618" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

[Launchpad Janitor (janitor)]

This bug was fixed in the package kexec-tools - 1:2.0.14-1ubuntu1

---------------
kexec-tools (1:2.0.14-1ubuntu1) zesty; urgency=medium

  * Merge from Debian unstable. Remaining changes:
    - Default to not kexecing a kernel on boot in the automatically
      generated conffile
    - Don't call db_stop from the postinst.
    - Adjust INITCONFFILE to vmlinux if used
    - Use format-security.patch instead of const_string_warning.patch
    - Add maintainer script helper to handle removal of conffile
      /etc/default/grub.d/kexec-tools.cfg has been removed.
      Handle it properly
    - Add Breaks: statement toward kdump-tools
       Starting with kdump-tools 1:1.5.9-6, this package takes
       over the addition of crashkernel= parameter which has
       been removed from kexec-tools.
       Make sure that it is upgraded accordingly.
  * Debian merge adds arm64 support (LP: #1659618).

 -- dann frazier <email address hidden> Wed, 01 Feb 2017 12:48:15 -0700

[Manoj Iyer (manjo)]

[Testing on VM]
== Default kernel on Yakkety ==
ubuntu@test:~$ uname -a
Linux test 4.8.0-37-generic #39-Ubuntu SMP Thu Jan 26 02:26:41 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux
ubuntu@test:~$

== No kexec-tools for ARM64 ==
ubuntu@test:~$ sudo apt-get install kexec-tools
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package kexec-tools is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'kexec-tools' has no installation candidate
ubuntu@test:~$

== kexec-tools for yakkety with ARM64 support ==
ubuntu@test:~$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.10-2ubuntu1.1 arm64 tools to support fast kexec reboots
ubuntu@test:~$

== Kernel with kexec support ==
SRU pending: https://bugs.launchpad.net/bugs/1662554

ubuntu@test:~$ sudo file /boot/vmlinuz-4.8.0-38-generic
/boot/vmlinuz-4.8.0-38-generic: gzip compressed data, max compression, from Unix
ubuntu@test:~$

== Load kexec kernel on cmd line ==
ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.8.0-38-generic --initrd=/boot/initrd.img-4.8.0-38-generic --append="root=LABEL=cloudimg-rootfs vt.handoff=7"
ubuntu@test:~$

== Kernel live boots successfully ==
test login: [ 66.553187] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.8.0-38-generic (manjo@tangerine) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #40ubuntu1 SMP Mon Feb 6 21:55:35 UTC 2017 (Ubuntu 4.8.0-38.40ubuntu1-generic 4.8.17)
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: EFI v2.50 by EDK II
[ 0.000000] efi: SMBIOS=0x5bdb0000 SMBIOS 3.0=0x58660000 PROP=0x5f714518 ACPI=0x58690000 ACPI 2.0=0x58690014

[Manoj Iyer (manjo)]

[AMD64 regression testing]
[Testing with stock Yakkety kernel & kexec-tools]

ubuntu@test:~$ sudo file /boot/vmlinuz-4.8.0-30-generic
/boot/vmlinuz-4.8.0-30-generic: Linux kernel x86 boot executable bzImage, version 4.8.0-30-generic (buildd@lcy01-08) #32-Ubuntu SMP Fri Dec 2 03:, RO-rootFS, swap_dev 0x7, Normal VGA
ubuntu@test:~$

ubuntu@test:~$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.10-2ubuntu1 amd64 tools to support fast kexec reboots
ubuntu@test:~$

ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.8.0-30-generic --initrd=/boot/initrd.img-4.8.0-30-generic --append="root=LABEL=cloudimg-rootfs console=ttyS0"
ubuntu@test:~$ sudo kexec -e

test login: [ 212.930357] kexec_core: Starting new kernel
[ 0.000000] Linux version 4.8.0-30-generic (buildd@lcy01-08) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #32-Ubuntu SMP Fri Dec 2 03:43:27 UTC 2016 (Ubuntu 4.8.0-30.32-generic 4.8.6)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-30-generic root=LABEL=cloudimg-rootfs 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 'eager' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:

[Testing with patched kexec-tools]

== Build & Install patched kexec-tools ==
ubuntu@test:~/kexec$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.10-2ubuntu1.1 amd64 tools to support fast kexec reboots
ubuntu@test:~/kexec$

ubuntu@test:~/kexec$ sudo file /boot/vmlinuz-4.8.0-30-generic
/boot/vmlinuz-4.8.0-30-generic: Linux kernel x86 boot executable bzImage, version 4.8.0-30-generic (buildd@lcy01-08) #32-Ubuntu SMP Fri Dec 2 03:, RO-rootFS, swap_dev 0x7, Normal VGA
ubuntu@test:~/kexec$

ubuntu@test:~/kexec$ sudo kexec -l /boot/vmlinuz-4.8.0-30-generic --initrd=/boot/initrd.img-4.8.0-30-generic --append="root=LABEL=cloudimg-rootfs console=ttyS0"
ubuntu@test:~/kexec$ sudo kexec -e

== Kernel live boots successfully ==
Ubuntu 16.10 test ttyS0

test login: [ 377.524693] kexec_core: Starting new kernel
[ 0.000000] Linux version 4.8.0-30-generic (buildd@lcy01-08) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #32-Ubuntu SMP Fri Dec 2 03:43:27 UTC 2016 (Ubuntu 4.8.0-30.32-generic 4.8.6)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-30-generic root=LABEL=cloudimg-rootfs 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 'eager' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:

[Manoj Iyer (manjo)]

Please note that the previous debdiff patch I attached introduced some spurious changes by accident. Here is a cleaner version of the debdiff patch for Yakkety. I applied this patch to Yakkety kexec-tools and I was able to build and test.

Please consider this patch for SRU to kexec-tools in yakkety.

[Manoj Iyer (manjo)]

Please ignore my previous comment, I introduced an err in the changelog. Please use this cleaned up version of the patch.

[Manoj Iyer (manjo)]

I was able to apply this patch and build kexec-tools on Xenial. Please see this link for details: https://pastebin.ubuntu.com/23950298/

[TESTING]

== Y kernel for X series with kexec support ==
I had to build a Yakkety kernel for Xenial series with KEXEC enabled.
ubuntu@test:~$ uname -a
Linux test 4.8.0-38-generic #40ubuntu1 SMP Tue Feb 7 21:26:52 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux

== kexec-tools with patches to enable ARM64 support ==

ubuntu@test:~$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.10-1ubuntu2.1 arm64 tools to support fast kexec reboots
ubuntu@test:~$

== Load kexec kernel and initiate kexec ==
ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.8.0-38-generic --initrd=/boot/initrd.img-4.8.0-38-generic --append="root=UUID=6ef62239-dad9-409b-a3ab-1847e44aa779 ro vt.handoff=7"
ubuntu@test:~$ sudo kexec -e

== Successful live boot of kexec kernel ==
Ubuntu 16.04.1 LTS test ttyAMA0

test login: [ 85.371808] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.8.0-38-generic (manjo@tangerine) (gcc version 5.3.1 20160413 (Ubuntu/Linaro 5.3.1-14ubuntu2) ) #40ubuntu1 SMP Tue Feb 7 21:26:52 UTC 2017 (Ubuntu 4.8.0-38.40ubuntu1-generic 4.8.17)
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: EFI v2.50 by EDK II
[ 0.000000] efi: SMBIOS=0x5bdb0000 SMBIOS 3.0=0x58660000 PROP=0x5f714518 ACPI=0x58690000 ACPI 2.0=0x58690014
[ 0.000000] No NUMA configuration found

[Manoj Iyer (manjo)]

[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:

[Manoj Iyer (manjo)]

The attached patch has the complete set of patches needed for kexec support on ARM64.
  * kexec: Increase the upper limit for RAM segments [LP: #1663400]
  * Enable compressed kernel support for ARM64 [LP: #1661363]
  * Enable ARM64 support [LP: #1659618]

This patch applies cleanly on Xenial kexec-tools. https://pastebin.ubuntu.com/23968089/
Testing for lp 1663400 is posted to the SRU request description. Testing results for arm64 support yielded the same results as previously.

Ubuntu 16.04.1 LTS ubuntu ttyAMA2

ubuntu login: [ 857.281231] mmc0: Reset 0x1 never completed.
[ 860.859581] kexec_core: Starting new kernel
[ 0.000000] arch_timer: Failed to initialize memory-mapped timer, skipping
[ 1.169613] coresight-tmc ARMHFFF0:00: Byte-cntr-irq not specified
[ 1.178015] Failed to find cpu0 device node
[ 1.452042] mmc0: Reset 0x1 never completed.
[ 1.555603] mmc0: Reset 0x1 never completed.
[ 1.659871] mmc0: Reset 0x1 never completed.
[ 1.665249] hub 2-0:1.0: config failed, hub doesn't have any ports! (err -19)
[ 1.673240] hub 4-0:1.0: config failed, hub doesn't have any ports! (err -19)
[ 1.680657] hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)
[ 1.687974] hub 8-0:1.0: config failed, hub doesn't have any ports! (err -19)

[Manoj Iyer (manjo)]

The attached patch has the complete set of patches needed for kexec support on ARM64.
* Enable ARM64 support in kexec-tools (LP: #1659618)
* Enable support for compressed kernels on ARM64 (LP: #1661363)
* kexec: Increase the upper limit for RAM segments (LP: #1663400)

This patch applies cleanly on Yakkety kexec-tools: https://pastebin.ubuntu.com/23968404/

Testing for lp 1663400 is posted to the SRU request description. Testing results for arm64 support yielded the same results as previously.

ubuntu@yk:/tmp$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.10-2ubuntu1.1 arm64 tools to support fast kexec reboots
ubuntu@yk:/tmp$

ubuntu@yk:/tmp$ sudo kexec -l /boot/vmlinuz-4.8.0-38-generic --initrd=/boot/initrd.img-4.8.0-38-generic --append="root=UUID=d80e6bcf-a747-43fd-97fe-e47574637b2b ro vt.handoff=7"
ubuntu@yk:/tmp$

ubuntu@yk:/tmp$ sudo kexec -e
Ubuntu 16.10 yk ttyAMA0

yk login: [ 1902.177836] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.8.0-38-generic (manjo@tangerine) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #40ubuntu1 SMP Mon Feb 6 21:55:35 UTC 2017 (Ubuntu 4.8.0-38.40ubuntu1-generic 4.8.17)
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: EFI v2.50 by EDK II
[ 0.000000] efi: SMBIOS=0x5bdb0000 SMBIOS 3.0=0x58660000 PROP=0x5f714518 ACPI=0x58690000 ACPI 2.0=0x58690014
[ 0.000000] No NUMA configuration found

[Manoj Iyer (manjo)]

The attached patch is for:

* kexec: Increase the upper limit for RAM segments (LP: #1663400)

This patch applies cleanly on Zesty kexec-tools: https://pastebin.ubuntu.com/23995216/

[TESTING with Zesty kexec-tools on hardware]
ubuntu@ubuntu:~$ dpkg -l | grep kexec-tools
ii kexec-tools 1:2.0.14-1ubuntu2.1 arm64 tools to support fast kexec reboots
ubuntu@ubuntu:~$

ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd --initrd=/boot/initrd.img-4.7.0-2-generic
arch_process_options:141: command_line: root=UUID=6c2f8a0a-5a0a-4f7b-8427-6e119e950aaa ro splash quiet vt.handoff=7
arch_process_options:143: initrd: /boot/initrd.img-4.7.0-2-generic
arch_process_options:144: dtb: (null)
Try gzip decompression.
kernel: 0xffffa9e5e010 kernel_size: 0xf36800
get_memory_ranges_iomem_cb: 0000000000200000 - 000000000020ffff : System RAM
get_memory_ranges_iomem_cb: 0000000000820000 - 000000000307ffff : System RAM
get_memory_ranges_iomem_cb: 0000000003080000 - 000000000308ffff : System RAM
get_memory_ranges_iomem_cb: 0000000003090000 - 00000000031fffff : System RAM
get_memory_ranges_iomem_cb: 0000000003200000 - 00000000033fffff : System RAM
get_memory_ranges_iomem_cb: 0000000003410000 - 000000000589ffff : System RAM
get_memory_ranges_iomem_cb: 00000000058a0000 - 00000000058affff : System RAM
get_memory_ranges_iomem_cb: 00000000058b0000 - 00000000058bffff : System RAM
get_memory_ranges_iomem_cb: 00000000058c0000 - 000000000597ffff : System RAM
get_memory_ranges_iomem_cb: 0000000005980000 - 0000000005987fff : System RAM
get_memory_ranges_iomem_cb: 0000000005988000 - 000000000598bfff : System RAM
get_memory_ranges_iomem_cb: 000000000598c000 - 0000000005a0ffff : System RAM
get_memory_ranges_iomem_cb: 0000000005a10000 - 0000000005aaffff : System RAM
get_memory_ranges_iomem_cb: 0000000005ab0000 - 0000000005ca0fff : System RAM
get_memory_ranges_iomem_cb: 0000000005ca1000 - 0000000008caffff : System RAM
get_memory_ranges_iomem_cb: 0000000008cb0000 - 0000000008cfffff : System RAM
get_memory_ranges_iomem_cb: 0000000008d00000 - 0000000008edffff : System RAM
get_memory_ranges_iomem_cb: 0000000008ee0000 - 0000000008ee0fff : System RAM
get_memory_ranges_iomem_cb: 0000000008ee1000 - 0000000008ee3fff : System RAM
get_memory_ranges_iomem_cb: 0000000008ee4000 - 0000000008eeffff : System RAM
get_memory_ranges_iomem_cb: 0000000008ef0000 - 00000000092affff : System RAM
get_memory_ranges_iomem_cb: 00000000092b0000 - 00000000092dffff : System RAM
get_memory_ranges_iomem_cb: 00000000092e0000 - 0000000009422fff : System RAM
get_memory_ranges_iomem_cb: 0000000009423000 - 000000000949ffff : System RAM
get_memory_ranges_iomem_cb: 00000000094a0000 - 000000000957ffff : System RAM
get_memory_ranges_iomem_cb: 0000000009580000 - 000000000958cfff : System RAM
get_memory_ranges_iomem_cb: 000000000958d000 - 00000000098cffff : System RAM
get_memory_ranges_iomem_cb: 00000000098d0000 - 00000000098d0fff : System RAM
get_memory_ranges_iomem_cb: 00000000098d1000 - 00000000098dbfff : System RAM
get_memory_ranges_iomem_cb: 00000000098dc000 - 000000000e8bffff : System RAM
get_memory_ranges_iomem_cb: 000000000e8c0000 - 000000000e8effff : Sy...

[Brian Murray (brian-murray)]

Hello Manoj, or anyone else affected,

Accepted kexec-tools into yakkety-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kexec-tools/1:2.0.10-2ubuntu1.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Brian Murray (brian-murray)]

Hello Manoj, or anyone else affected,

Accepted kexec-tools into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kexec-tools/1:2.0.10-1ubuntu2.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Manoj Iyer (manjo)]

[Xenial Proposed Testing]
ubuntu@ubuntu:~$ sudo apt policy kexec-tools
kexec-tools:
  Installed: (none)
  Candidate: 1:2.0.10-1ubuntu2.1
  Version table:
     1:2.0.10-1ubuntu2.1 500
        500 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main arm64 Packages

ubuntu@ubuntu:~$ sudo kexec -l /boot/vmlinuz-4.10.0-11-generic --initrd=/boot/initrd.img-4.10.0-11-generic --reuse-cmdline
ubuntu@ubuntu:~$

ubuntu login: [522805.585557] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x200
[ 0.000000] Linux version 4.10.0-11-generic (manjo@rugby) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #13ubuntu1+bandera.1 SMP Thu Mar 9 20:26:04 UTC 2017 (Ubuntu 4.10.0-11.13ubuntu1+bandera.1-generic 4.10.1)
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: EFI v2.60 by Qualcomm
[ 0.000000] efi: ACPI 2.0=0x96c0000 SMBIOS 3.0=0x58b0000 PROP=0xe90a580 ESRT=0xbacf218 MEMATTR=0xbaac018 RNG=0xe8c6c18

[Manoj Iyer (manjo)]

[Yakkety Proposed Testing]

ubuntu@test:~$ cat /etc/issue
Ubuntu 16.10 \n \l
ubuntu@test:~$ sudo apt policy kexec-tools
kexec-tools:
  Installed: (none)
  Candidate: 1:2.0.10-2ubuntu1.1
  Version table:
     1:2.0.10-2ubuntu1.1 500
        500 http://ports.ubuntu.com/ubuntu-ports yakkety-proposed/main arm64 Packages
ubuntu@test:~$

ubuntu@test:~$ uname -a
Linux test 4.10.0-10-generic #13~ubunturc2+build.1-Ubuntu SMP Tue Feb 28 23:33:09 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux
ubuntu@test:~$
ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.10.0-10-generic --initrd=/boot/initrd.img-4.8.0-41-generic --reuse-cmdline
ubuntu@test:~$ sudo kexec -e
[ 1095.110521] kexec_core: Starting new kernel

[Manoj Iyer (manjo)]

test login: [ 146.606156] cloud-init[1023]: Cloud-init v. 0.7.9 running 'modules:config' at Tue, 21 Mar 2017 17:23:44 +0000. Up 143.57 seconds.
[ 168.868544] cloud-init[1161]: Cloud-init v. 0.7.9 running 'modules:final' at Tue, 21 Mar 2017 17:24:06 +0000. Up 165.37 seconds.
[ 168.914038] cloud-init[1161]: Cloud-init v. 0.7.9 finished at Tue, 21 Mar 2017 17:24:10 +0000. Datasource DataSourceNoCloud [seed=/dev/vda][dsmode=net]. Up 168.67 seconds
[ 231.987676] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.10.0-10-generic (buildd@bos01-arm64-046) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #13~ubunturc2+build.1-Ubuntu SMP Tue Feb 28 23:33:09 UTC 2017 (Ubuntu 4.10.0-10.13~ubunturc2+build.1-generic 4.10.0)
[ 0.000000] Boot CPU: AArch64 Processor [411fd070]

[Chris Halse Rogers (raof)]

While this has passed testing on arm64, it introduces a FTBFS regression in the armhf package on Yakkety: https://launchpad.net/ubuntu/+source/kexec-tools/1:2.0.10-2ubuntu1.1/+build/12076905

Please resolve this build error and upload a new package.

[Brian Murray (brian-murray)]

Chris's comment is also true for Xenial - the armhf version of the package failed to build.

[Brian Murray (brian-murray)]

Oh, no it's 1:2.0.10-1ubuntu2.1 that failed to build from source, but 1:2.0.10-1ubuntu2.2 is really in -proposed. This was accepted into -proposed without adding a comment to the bug which caused my confusion. Regardless the bug will need to be reverified for 16.04 with the new version of the package in -proposed.

[Manoj Iyer (manjo)]

ubuntu@ubuntu:~$ apt policy kexec-tools
kexec-tools:
  Installed: (none)
  Candidate: 1:2.0.10-1ubuntu2.2
  Version table:
     1:2.0.10-1ubuntu2.2 500
        500 http://us.ports.ubuntu.com/ubuntu-ports xenial-proposed/main arm64 Packages
ubuntu@ubuntu:~$

ubuntu@ubuntu:~$ dpkg -l | grep kexec
ii kexec-tools 1:2.0.10-1ubuntu2.2 arm64 tools to support fast kexec reboots
ubuntu@ubuntu:~$

ubuntu@ubuntu:~$ sudo kexec -l /boot/vmlinuz-4.10.0-21-generic --initrd=/boot/initrd.img-4.10.0-21-generic --reuse-cmdline
ubuntu@ubuntu:~$

ubuntu@ubuntu:~$ sudo kexec -e
[ 7891.831437] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.10.0-21-generic (manjo@tangerine) (gcc version 5.3.1 20160413 (Ubuntu/Linaro 5.3.1-14ubuntu2) ) #23~sru4.test4 SMP Tue May 30 20:35:31 UTC 2017 (Ubuntu 4.10.0-21.23~sru4.test4-generic 4.10.11)
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: EFI v2.60 by Qualcomm
[ 0.000000] efi: ACPI 2.0=0x95e0000 PROP=0xe823580 SMBIOS 3.0=0x5750000 ESRT=0xac81618 MEMATTR=0xac5b018 RNG=0xe7ce798

[dann frazier (dannf)]

Note that the yakkety SRU for this is still in unapproved, so it can't yet be verified.

[Manoj Iyer (manjo)]

Yakkety verification:

[ 77.450371] kexec_core: Starting new kernel
[ 0.618716] kvm [1]: HYP mode not available

[ 0.000000] arch_timer: WARNING: Invalid trigger for IRQ3, assuming level low
[ 0.000000] arch_timer: WARNING: Please fix your firmware
[ 0.000000] arch_timer: cp15 timer(s) running at 20.00MHz (virt).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x49cd42e20, max_idle_ns: 440795202120 ns
[ 0.000001] sched_clock: 56 bits at 20MHz, resolution 50ns, wraps every 4398046511100ns
[ 0.000031] vt handoff: transparent VT on vt#7
[ 0.000039] Console: colour dummy device 80x25
[ 0.000043] console [tty0] enabled
[ 0.000064] Calibrating delay loop (skipped), value calculated using timer frequency.. 40.00 BogoMIPS (lpj=80000)
[ 0.000066] pid_max: default: 32768 minimum: 301
[ 0.000104] Security Framework initialized
[ 0.000107] Yama: becoming mindful.
[ 0.000126] AppArmor: AppArmor initialized
[ 0.000236] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.000344] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.000387] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.000392] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.000641] ftrace: allocating 33642 entries in 132 pages
[ 0.065708] ASID allocator initialised with 65536 entries
[ 0.066225] PCI/MSI: /intc/its domain created
[ 0.066237] Platform MSI: /intc/its domain created
[ 0.066307] Remapping and enabling EFI services.
[ 0.066317] EFI remap 0x0000000004000000 => 0000000020000000
[ 0.066322] EFI remap 0x0000000009010000 => 0000000024000000
[ 0.066326] EFI remap 0x00000000585f0000 => 0000000024010000
[ 0.066330] EFI remap 0x0000000058600000 => 0000000024020000
[ 0.066333] EFI remap 0x00000000586e0000 => 00000000240e0000
[ 0.066339] EFI remap 0x000000005bc20000 => 0000000024150000
[ 0.066346] EFI remap 0x000000005bdb0000 => 00000000242e0000
[ 0.066429] smp: Bringing up secondary CPUs ...
[ 0.066431] smp: Brought up 1 node, 1 CPU
[ 0.066432] SMP: Total of 1 processors activated.
[ 0.066434] CPU features: detected feature: GIC system register CPU interface
[ 0.066436] CPU features: detected feature: Privileged Access Never
[ 0.066451] CPU: All CPU(s) started at EL1
[ 0.066454] alternatives: patching kernel code
[ 0.067989] devtmpfs: initialized
[ 0.068605] evm: security.selinux
[ 0.068606] evm: security.SMACK64
[ 0.068606] evm: security.SMACK64EXEC
[ 0.068607] evm: security.SMACK64TRANSMUTE
[ 0.068608] evm: security.SMACK64MMAP
[ 0.068609] evm: security.ima
[ 0.068610] evm: security.capability
[ 0.068688] SMBIOS 3.0.0 present.
[ 0.068692] DMI: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[ 0.068756] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns

[Launchpad Janitor (janitor)]

This bug was fixed in the package kexec-tools - 1:2.0.16-1ubuntu1~16.04.1

---------------
kexec-tools (1:2.0.16-1ubuntu1~16.04.1) xenial; urgency=low

  * Backport latest kexec-tools from bionic to xenial (LP: #1743529).

 -- Thadeu Lima de Souza Cascardo <email address hidden> Fri, 23 Feb 2018 12:11:36 -0300