Bug #1661363 “Fails to load compressed kernels on arm64” : Bugs : kexec-tools package : Ubuntu

dann frazier (dannf) on 2017-02-02

description:

updated

Revision history for this message

Manoj Iyer (manjo) wrote on 2017-02-02:

#1

The debian/control file lists gnu-efi and libz-dev only for ia64, since amd64, and arm64 (may be other archs) also need these dependencies for it to support compressed kernel we need something like the following change for it to work on those archs.

-Build-Depends: debhelper (>= 7.0.0), dh-autoreconf, gnu-efi (>=3.0a-4)[ia64], libz-dev[ia64], po-debconf
+Build-Depends: debhelper (>= 7.0.0), dh-autoreconf, gnu-efi (>=3.0a-4)[amd64 arm64 ia64], libz-dev[amd64 arm64 ia64], po-debconf

I will upload a patch to zesty shortly.

Changed in kexec-tools (Ubuntu):
assignee:	nobody → Manoj Iyer (manjo)
status:	New → In Progress

Revision history for this message

dann frazier (dannf) wrote on 2017-02-02:

#2

As mentioned on IRC, we shouldn't include amd64 in this unless we know that it actually improves amd64 support. My guess is that this doesn't help x86 - IIRC, those images decompress themselves at runtime.

Revision history for this message

Manoj Iyer (manjo) wrote on 2017-02-03:

#4

[Zesty] Enable compressed kernel support for ARM64 Edit (1.2 KiB, text/plain)

ARM64 builds needs build dependency on libz-dev inorder to support compressed kernels. The attached patch adds that support. Note. amd64 and i386 do not have this dependency, I tested the current zesty version of the kexec-tools on amd64 and i386 and it works. The patch only apply to ARM64 build.

[TEST]
== Before Patch ==
ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.9.0-15-generic --initrd=/boot/initrd.img-4.9.0-15-generic --append="root=LABEL=cloudimg-rootfs vt.handoff=7"
Cannot determine the file type of /boot/vmlinuz-4.9.0-15-generic
ubuntu@test:~$

== After Patch ==
ubuntu@test:~$ sudo kexec -l /boot/vmlinuz-4.9.0-15-generic --initrd=/boot/initrd.img-4.9.0-15-generic --append="root=LABEL=cloudimg-rootfs vt.handoff=7"
ubuntu@test:~$ sudo kexec -e

Ubuntu Zesty Zapus (development branch) test ttyAMA0

test login: [ 7616.705779] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.0-15-generic (buildd@bos01-arm64-009) (gcc version 6.3.0 20161229 (Ubuntu/Linaro 6.3.0-2ubuntu1) ) #16-Ubuntu SMP Fri Jan 20 15:29:58 UTC 2017 (Ubuntu 4.9.0-15.16-generic 4.9.5)
[ 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] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x000000005

Revision history for this message

Launchpad Janitor (janitor) wrote on 2017-02-03:

#5

This bug was fixed in the package kexec-tools - 1:2.0.14-1ubuntu2

---------------
kexec-tools (1:2.0.14-1ubuntu2) zesty; urgency=medium

[ Manoj Iyer ]
* Enable compressed kernel support for ARM64 (LP: #1661363).

  [ dann frazier ]
  * ppc64-Reduce-number-of-ELF-LOAD-segments.patch: Cherry-pick
    from upstream, fixing kexec on some large memory configurations
    (LP: #1661168).

-- dann frazier <email address hidden> Fri, 03 Feb 2017 14:49:31 -0700

Changed in kexec-tools (Ubuntu):
status:	In Progress → Fix Released

Revision history for this message

Brian Murray (brian-murray) wrote on 2017-03-02: Please test proposed package

#6

Hello dann, 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!

Changed in kexec-tools (Ubuntu Yakkety):
status:	New → Fix Committed
tags:	added: verification-needed
Changed in kexec-tools (Ubuntu Xenial):
status:	New → Fix Committed

Revision history for this message

Brian Murray (brian-murray) wrote on 2017-03-02:

#7

Hello dann, 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!

Mathew Hodson (mhodson) on 2017-05-07

Changed in kexec-tools (Ubuntu):
importance:	Undecided → Medium
Changed in kexec-tools (Ubuntu Xenial):
importance:	Undecided → Medium
Changed in kexec-tools (Ubuntu Yakkety):
importance:	Undecided → Medium

Revision history for this message

Manoj Iyer (manjo) wrote on 2017-05-12:

#8

Ubuntu 16.04.2 LTS kosberg ttyAMA0

kosberg login: [ 2610.177390] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.10.0-20-generic (buildd@bos01-arm64-006) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #23~lp1688158+sru3-Ubuntu SMP Thu May 11 20:54:26 UTC 2017 (Ubuntu 4.10.0-20.23~lp1688158+sru3-generic 4.10.8)
[ 0.000000] Boot CPU: AArch64 Processor [430f0a11]
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: EFI v2.40 by American Megatrends
[ 0.000000] efi: ESRT=0x1ffce3ce18 SMBIOS 3.0=0x1ffce3cb18 ACPI 2.0=0x1ffeafd000
[ 0.000000] esrt: Reserving ESRT space from 0x0000001ffce3ce18 to 0x0000001ffce3ce50.

Revision history for this message

Manoj Iyer (manjo) wrote on 2017-05-12:

#9

sudo file /boot/vmlinuz-4.10.0-20-generic
/boot/vmlinuz-4.10.0-20-generic: gzip compressed data, max compression, from Unix

tags:

added: verification-done
removed: verification-needed

Revision history for this message

Łukasz Zemczak (sil2100) wrote on 2017-06-09:

#10

I don't see any mention of 16.10 being tested - switching to 'only xenial tested'.

tags:

added: verification-done-xenial
removed: verification-done

Revision history for this message

Manoj Iyer (manjo) wrote on 2017-06-09:

#11

Download full text (8.5 KiB)

Testing on Yakkety (16.10)

$ cat /etc/issue
Ubuntu 16.10 \n \l

$ uname -a
Linux myvm 4.8.0-54-generic #57-Ubuntu SMP Wed May 24 10:21:41 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux

$ sudo file /boot/vmlinuz-4.10.0-22-generic
/boot/vmlinuz-4.10.0-22-generic: gzip compressed data, max compression, from Unix

$ sudo kexec -d -l /boot/vmlinuz-4.10.0-22-generic --initrd=/boot/initrd.img-4.10.0-22-generic --reuse-cmdline
arch_process_options:141: command_line: root=LABEL=cloudimg-rootfs ro quiet splash vt.handoff=7
arch_process_options:143: initrd: /boot/initrd.img-4.10.0-22-generic
arch_process_options:144: dtb: (null)
Try gzip decompression.
kernel: 0xffffaf279010 kernel_size: 0x12bc200
get_memory_ranges_iomem_cb: 0000000040000000 - 000000005855ffff : System RAM
get_memory_ranges_iomem_cb: 00000000585c0000 - 00000000585ebfff : System RAM
get_memory_ranges_iomem_cb: 0000000058750000 - 000000005bc1ffff : System RAM
get_memory_ranges_iomem_cb: 000000005c000000 - 000000005fffffff : System RAM
elf_arm64_probe: Not an ELF executable.
image_arm64_load: kernel_segment: 0000000040000000
image_arm64_load: text_offset: 0000000000080000
image_arm64_load: image_size: 00000000013cf000
image_arm64_load: phys_offset: 0000000040000000
image_arm64_load: vp_offset: ffffffffffffffff
image_arm64_load: PE format: yes
read_1st_dtb: found /sys/firmware/fdt
initrd: base 4144f000, size 1af840fh (28279823)
dtb_set_initrd: start 1095036928, end 1123316751, size 28279823 (27617 KiB)
dtb: base 42f48000, size 1c49h (7241)
sym: sha256_starts info: 12 other: 00 shndx: 1 value: e80 size: 58
sym: sha256_starts value: 42f4ae80 addr: 42f4a014
machine_apply_elf_rel: CALL26 5800065394000000->580006539400039b
sym: sha256_update info: 12 other: 00 shndx: 1 value: 2df0 size: c
sym: sha256_update value: 42f4cdf0 addr: 42f4a030
machine_apply_elf_rel: CALL26 eb16027f94000000->eb16027f94000b70
sym: sha256_finish info: 12 other: 00 shndx: 1 value: 2e00 size: 1bc
sym: sha256_finish value: 42f4ce00 addr: 42f4a048
machine_apply_elf_rel: CALL26 aa1603e194000000->aa1603e194000b6e
sym: memcmp info: 12 other: 00 shndx: 1 value: 604 size: 34
sym: memcmp value: 42f4a604 addr: 42f4a058
machine_apply_elf_rel: CALL26 340003a094000000->340003a09400016b
sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a068
machine_apply_elf_rel: CALL26 5800042094000000->580004209400012f
sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a070
machine_apply_elf_rel: CALL26 5800043694000000->580004369400012d
sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a084
machine_apply_elf_rel: CALL26 f100827f94000000->f100827f94000128
sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a0a0
machine_apply_elf_rel: CALL26 5800032094000000->5800032094000121
sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a0a8
machine_apply_elf_rel: CALL26 38736a8194000000->38736a819400011f
sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value...

Testing on Yakkety (16.10)

$ cat /etc/issue
Ubuntu 16.10 \n \l

$ uname -a 
Linux myvm 4.8.0-54-generic #57-Ubuntu SMP Wed May 24 10:21:41 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux

$ sudo file /boot/vmlinuz-4.10.0-22-generic
/boot/vmlinuz-4.10.0-22-generic: gzip compressed data, max compression, from Unix

$ sudo kexec -d -l /boot/vmlinuz-4.10.0-22-generic --initrd=/boot/initrd.img-4.10.0-22-generic --reuse-cmdline
arch_process_options:141: command_line: root=LABEL=cloudimg-rootfs ro quiet splash vt.handoff=7
arch_process_options:143: initrd: /boot/initrd.img-4.10.0-22-generic
arch_process_options:144: dtb: (null)
Try gzip decompression.
kernel: 0xffffaf279010 kernel_size: 0x12bc200
get_memory_ranges_iomem_cb: 0000000040000000 - 000000005855ffff : System RAM
get_memory_ranges_iomem_cb: 00000000585c0000 - 00000000585ebfff : System RAM
get_memory_ranges_iomem_cb: 0000000058750000 - 000000005bc1ffff : System RAM
get_memory_ranges_iomem_cb: 000000005c000000 - 000000005fffffff : System RAM
elf_arm64_probe: Not an ELF executable.
image_arm64_load: kernel_segment: 0000000040000000
image_arm64_load: text_offset:    0000000000080000
image_arm64_load: image_size:     00000000013cf000
image_arm64_load: phys_offset:    0000000040000000
image_arm64_load: vp_offset:      ffffffffffffffff
image_arm64_load: PE format:      yes
read_1st_dtb: found /sys/firmware/fdt
initrd: base 4144f000, size 1af840fh (28279823)
dtb_set_initrd: start 1095036928, end 1123316751, size 28279823 (27617 KiB)
dtb:    base 42f48000, size 1c49h (7241)
sym: sha256_starts info: 12 other: 00 shndx: 1 value: e80 size: 58
sym: sha256_starts value: 42f4ae80 addr: 42f4a014
machine_apply_elf_rel: CALL26 5800065394000000->580006539400039b
sym: sha256_update info: 12 other: 00 shndx: 1 value: 2df0 size: c
sym: sha256_update value: 42f4cdf0 addr: 42f4a030
machine_apply_elf_rel: CALL26 eb16027f94000000->eb16027f94000b70
sym: sha256_finish info: 12 other: 00 shndx: 1 value: 2e00 size: 1bc
sym: sha256_finish value: 42f4ce00 addr: 42f4a048
machine_apply_elf_rel: CALL26 aa1603e194000000->aa1603e194000b6e
sym:     memcmp info: 12 other: 00 shndx: 1 value: 604 size: 34
sym: memcmp value: 42f4a604 addr: 42f4a058
machine_apply_elf_rel: CALL26 340003a094000000->340003a09400016b
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a068
machine_apply_elf_rel: CALL26 5800042094000000->580004209400012f
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a070
machine_apply_elf_rel: CALL26 5800043694000000->580004369400012d
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a084
machine_apply_elf_rel: CALL26 f100827f94000000->f100827f94000128
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a0a0
machine_apply_elf_rel: CALL26 5800032094000000->5800032094000121
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a0a8
machine_apply_elf_rel: CALL26 38736a8194000000->38736a819400011f
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a0b8
machine_apply_elf_rel: CALL26 f100827f94000000->f100827f9400011b
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a0c8
machine_apply_elf_rel: CALL26 5280002094000000->5280002094000117
sym:      .data info: 03 other: 00 shndx: 4 value: 0 size: 0
sym: .data value: 42f4d038 addr: 42f4a0e0
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4d038
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4cfc8 addr: 42f4a0e8
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4cfc8
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4cfe8 addr: 42f4a0f0
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4cfe8
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4cff8 addr: 42f4a0f8
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4cff8
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4cffe addr: 42f4a100
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4cffe
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4d000 addr: 42f4a108
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4d000
sym:     printf info: 12 other: 00 shndx: 1 value: 524 size: 80
sym: printf value: 42f4a524 addr: 42f4a11c
machine_apply_elf_rel: CALL26 9400000094000000->9400000094000102
sym: setup_arch info: 12 other: 00 shndx: 1 value: e78 size: 4
sym: setup_arch value: 42f4ae78 addr: 42f4a120
machine_apply_elf_rel: CALL26 9400000094000000->9400000094000356
sym: verify_sha256_digest info: 12 other: 00 shndx: 1 value: 0 size: e0
sym: verify_sha256_digest value: 42f4a000 addr: 42f4a124
machine_apply_elf_rel: CALL26 3400004094000000->3400004097ffffb7
sym: post_verification_setup_arch info: 12 other: 00 shndx: 1 value: e74 size: 4
sym: post_verification_setup_arch value: 42f4ae74 addr: 42f4a134
machine_apply_elf_rel: JUMP26 0000000014000000->0000000014000350
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4d010 addr: 42f4a138
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4d010
sym:    putchar info: 12 other: 00 shndx: 1 value: e70 size: 4
sym: putchar value: 42f4ae70 addr: 42f4a1cc
machine_apply_elf_rel: CALL26 2a1303e194000000->2a1303e194000329
sym:    putchar info: 12 other: 00 shndx: 1 value: e70 size: 4
sym: putchar value: 42f4ae70 addr: 42f4a240
machine_apply_elf_rel: CALL26 b9406ba194000000->b9406ba19400030c
sym:    putchar info: 12 other: 00 shndx: 1 value: e70 size: 4
sym: putchar value: 42f4ae70 addr: 42f4a49c
machine_apply_elf_rel: CALL26 f94037a194000000->f94037a194000275
sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0
sym: .rodata.str1.1 value: 42f4d022 addr: 42f4a4a8
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4d022
sym:   vsprintf info: 12 other: 00 shndx: 1 value: 140 size: 368
sym: vsprintf value: 42f4a140 addr: 42f4a518
machine_apply_elf_rel: CALL26 a8d07bfd94000000->a8d07bfd97ffff0a
sym:   vsprintf info: 12 other: 00 shndx: 1 value: 140 size: 368
sym: vsprintf value: 42f4a140 addr: 42f4a598
machine_apply_elf_rel: CALL26 a8d17bfd94000000->a8d17bfd97fffeea
sym:  purgatory info: 12 other: 00 shndx: 1 value: 110 size: 28
sym: purgatory value: 42f4a110 addr: 42f4a648
machine_apply_elf_rel: CALL26 5800001194000000->5800001197fffeb2
sym: arm64_kernel_entry info: 10 other: 00 shndx: 4 value: 120 size: 8
sym: arm64_kernel_entry value: 42f4d158 addr: 42f4a64c
machine_apply_elf_rel: LD_PREL_LO19 5800000058000011->5800000058015871
sym: arm64_dtb_addr info: 10 other: 00 shndx: 4 value: 128 size: 8
sym: arm64_dtb_addr value: 42f4d160 addr: 42f4a650
machine_apply_elf_rel: LD_PREL_LO19 aa1f03e158000000->aa1f03e158015880
sym: sha256_process info: 12 other: 00 shndx: 1 value: ed8 size: 1e00
sym: sha256_process value: 42f4aed8 addr: 42f4cd5c
machine_apply_elf_rel: CALL26 eb15027f94000000->eb15027f97fff85f
sym:     memcpy info: 12 other: 00 shndx: 1 value: 5e4 size: 20
sym: memcpy value: 42f4a5e4 addr: 42f4cdbc
machine_apply_elf_rel: JUMP26 9100c29314000000->9100c29317fff60a
sym:     memcpy info: 12 other: 00 shndx: 1 value: 5e4 size: 20
sym: memcpy value: 42f4a5e4 addr: 42f4cdd8
machine_apply_elf_rel: CALL26 aa1303e194000000->aa1303e197fff603
sym: sha256_process info: 12 other: 00 shndx: 1 value: ed8 size: 1e00
sym: sha256_process value: 42f4aed8 addr: 42f4cde4
machine_apply_elf_rel: CALL26 17ffffd394000000->17ffffd397fff83d
sym:      .data info: 03 other: 00 shndx: 4 value: 0 size: 0
sym: .data value: 42f4d168 addr: 42f4cfc0
machine_apply_elf_rel: ABS64 0000000000000000->0000000042f4d168
kexec_load: entry = 0x42f4a640 flags = 0xb70000
nr_segments = 4
segment[0].buf   = 0xffffaf279010
segment[0].bufsz = 0x12bc200
segment[0].mem   = 0x40080000
segment[0].memsz = 0x13cf000
segment[1].buf   = 0xffffb1769010
segment[1].bufsz = 0x1af840f
segment[1].mem   = 0x4144f000
segment[1].memsz = 0x1af9000
segment[2].buf   = 0x28b5e10
segment[2].bufsz = 0x1c49
segment[2].mem   = 0x42f48000
segment[2].memsz = 0x2000
segment[3].buf   = 0x28b7dc0
segment[3].bufsz = 0x31a8
segment[3].mem   = 0x42f4a000
segment[3].memsz = 0x4000

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

tags:

added: verification-done-yakkety

Revision history for this message

Launchpad Janitor (janitor) wrote on 2018-06-11:

#12

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

Changed in kexec-tools (Ubuntu Xenial):
status:	Fix Committed → Fix Released

Ubuntu
kexec-tools package

Fails to load compressed kernels on arm64

Bug Description

Other bug subscribers

Patches

Remote bug watches

	Status	Importance	Assigned to
kexec-tools (Ubuntu)	Fix Released	Medium	Manoj Iyer
Xenial	Fix Released	Medium	Unassigned
Yakkety	Fix Committed	Medium	Unassigned

Ubuntukexec-tools package

Fails to load compressed kernels on arm64

Bug Description

Other bug subscribers

Patches

Remote bug watches

Ubuntu
kexec-tools package