Add CONFIG_NO_HZ_FULL=y to linux-azure kernels

[David Coronel]

This is a request to enable CONFIG_NO_HZ_FULL=y in the linux-azure kernels(currently 4.15 and 4.18) in order to increase NVME disks performance.

The current CONFIG_NO_HZ configuration in linux-azure kernels is the following (tested on 4.15.0-1037, 4.15.0-1039 and 4.18.0-1011):

CONFIG_NO_HZ=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ_IDLE=y

[Joseph Salisbury (jsalisbury)]

bug 1819689 is a complimentary performance bug.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 4.15.0-1041.45

---------------
linux-azure (4.15.0-1041.45) xenial; urgency=medium

  * linux-azure: 4.15.0-1041.45 -proposed tracker (LP: #1819713)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  * Add CONFIG_NO_HZ_FULL=y to linux-azure kernels (LP: #1818138)
    - [Config] linux-azure: CONFIG_NO_HZ_FULL=y

  [ Ubuntu: 4.15.0-47.50 ]

  * linux: 4.15.0-47.50 -proposed tracker (LP: #1819716)
  * Packaging resync (LP: #1786013)
    - [Packaging] resync getabis
    - [Packaging] update helper scripts
    - [Packaging] resync retpoline extraction
  * C++ demangling support missing from perf (LP: #1396654)
    - [Packaging] fix a mistype
  * arm-smmu-v3 arm-smmu-v3.3.auto: CMD_SYNC timeout (LP: #1818162)
    - iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
  * Crash in nvme_irq_check() when using threaded interrupts (LP: #1818747)
    - nvme-pci: fix out of bounds access in nvme_cqe_pending
  * CVE-2019-9213
    - mm: enforce min addr even if capable() in expand_downwards()
  * CVE-2019-3460
    - Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
  * amdgpu with mst WARNING on blanking (LP: #1814308)
    - drm/amd/display: Don't use dc_link in link_encoder
    - drm/amd/display: Move wait for hpd ready out from edp power control.
    - drm/amd/display: eDP sequence BL off first then DP blank.
    - drm/amd/display: Fix unused variable compilation error
    - drm/amd/display: Fix warning about misaligned code
    - drm/amd/display: Fix MST dp_blank REG_WAIT timeout
  * tun/tap: unable to manage carrier state from userland (LP: #1806392)
    - tun: implement carrier change
  * CVE-2019-8980
    - exec: Fix mem leak in kernel_read_file
  * raw_skew in timer from the ubuntu_kernel_selftests failed on Bionic
    (LP: #1811194)
    - selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock
      adjustments are in progress
  * [Packaging] Allow overlay of config annotations (LP: #1752072)
    - [Packaging] config-check: Add an include directive
  * CVE-2019-7308
    - bpf: move {prev_,}insn_idx into verifier env
    - bpf: move tmp variable into ax register in interpreter
    - bpf: enable access to ax register also from verifier rewrite
    - bpf: restrict map value pointer arithmetic for unprivileged
    - bpf: restrict stack pointer arithmetic for unprivileged
    - bpf: restrict unknown scalars of mixed signed bounds for unprivileged
    - bpf: fix check_map_access smin_value test when pointer contains offset
    - bpf: prevent out of bounds speculation on pointer arithmetic
    - bpf: fix sanitation of alu op with pointer / scalar type from different
      paths
    - bpf: add various test cases to selftests
  * CVE-2017-5753
    - bpf: properly enforce index mask to prevent out-of-bounds speculation
    - bpf: fix inner map masking to prevent oob under speculation
  * BPF: kernel pointer leak to unprivileged userspace (LP: #1815259)
    - bpf/verifier: disallow pointer subtraction
  * squashfs hardening (LP: #1816756)
    - squashfs: more metadata hardening
    - squashfs metadata 2: electric boogaloo
    - squashfs: more metadata h...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 4.18.0-1014.14

---------------
linux-azure (4.18.0-1014.14) cosmic; urgency=medium

  * linux-azure: 4.18.0-1014.14 -proposed tracker (LP: #1819618)

  * PAGE_POISONING / PAGE_POISONING_NO_SANITY / PAGE_POISONING_ZERO option was
    expected to be set in C-KVM (LP: #1812624)
    - [Config]: enable PAGE_POISONING, PAGE_POISONING_NO_SANITY,
      PAGE_POISONING_ZERO

  * Add CONFIG_NO_HZ_FULL=y to linux-azure kernels (LP: #1818138)
    - [Config] linux-azure: CONFIG_NO_HZ_FULL=y

  [ Ubuntu: 4.18.0-17.18 ]

  * linux: 4.18.0-17.18 -proposed tracker (LP: #1819624)
  * Packaging resync (LP: #1786013)
    - [Packaging] resync getabis
    - [Packaging] update helper scripts
  * C++ demangling support missing from perf (LP: #1396654)
    - [Packaging] fix a mistype
  * arm-smmu-v3 arm-smmu-v3.3.auto: CMD_SYNC timeout (LP: #1818162)
    - iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
  * Crash in nvme_irq_check() when using threaded interrupts (LP: #1818747)
    - nvme-pci: fix out of bounds access in nvme_cqe_pending
  * CVE-2019-9003
    - ipmi: fix use-after-free of user->release_barrier.rda
  * CVE-2019-9162
    - netfilter: nf_nat_snmp_basic: add missing length checks in ASN.1 cbs
  * CVE-2019-9213
    - mm: enforce min addr even if capable() in expand_downwards()
  * CVE-2019-3460
    - Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
  * tun/tap: unable to manage carrier state from userland (LP: #1806392)
    - tun: implement carrier change
  * CVE-2019-8980
    - exec: Fix mem leak in kernel_read_file
  * [Packaging] Allow overlay of config annotations (LP: #1752072)
    - [Packaging] config-check: Add an include directive
  * amdgpu with mst WARNING on blanking (LP: #1814308)
    - drm/amd/display: Fix MST dp_blank REG_WAIT timeout
  * CVE-2019-7308
    - bpf: move {prev_,}insn_idx into verifier env
    - bpf: move tmp variable into ax register in interpreter
    - bpf: enable access to ax register also from verifier rewrite
    - bpf: restrict map value pointer arithmetic for unprivileged
    - bpf: restrict stack pointer arithmetic for unprivileged
    - bpf: restrict unknown scalars of mixed signed bounds for unprivileged
    - bpf: fix check_map_access smin_value test when pointer contains offset
    - bpf: prevent out of bounds speculation on pointer arithmetic
    - bpf: fix sanitation of alu op with pointer / scalar type from different
      paths
    - bpf: add various test cases to test_verifier
    - bpf: add various test cases to selftests
  * CVE-2017-5753
    - bpf: fix inner map masking to prevent oob under speculation
  * Use memblock quirk instead of delayed allocation for GICv3 LPI tables
    (LP: #1816425)
    - efi/arm: Revert "Defer persistent reservations until after paging_init()"
    - arm64, mm, efi: Account for GICv3 LPI tables in static memblock reserve
      table
  * efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted (LP: #1814982)
    - efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted
  * Update ENA driver to version 2.0.3K (LP: #1816806)
    - net: ena: update driver version from 2.0.2 to 2.0.3
    - net: ena: fix race betw...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 4.18.0-1014.14~18.04.1

---------------
linux-azure (4.18.0-1014.14~18.04.1) bionic; urgency=medium

  * linux-azure: 4.18.0-1014.14~18.04.1 -proposed tracker (LP: #1819617)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  * Strip specific changes from update-from-*master (LP: #1817734)
    - Packaging: Introduce copy-files and local-mangle
    - Packaging: Make update-from-*master call copy-files

  [ Ubuntu: 4.18.0-1014.14 ]

  * linux-azure: 4.18.0-1014.14 -proposed tracker (LP: #1819618)
  * PAGE_POISONING / PAGE_POISONING_NO_SANITY / PAGE_POISONING_ZERO option was
    expected to be set in C-KVM (LP: #1812624)
    - [Config]: enable PAGE_POISONING, PAGE_POISONING_NO_SANITY,
      PAGE_POISONING_ZERO
  * Add CONFIG_NO_HZ_FULL=y to linux-azure kernels (LP: #1818138)
    - [Config] linux-azure: CONFIG_NO_HZ_FULL=y
  * linux: 4.18.0-17.18 -proposed tracker (LP: #1819624)
  * Packaging resync (LP: #1786013)
    - [Packaging] resync getabis
    - [Packaging] update helper scripts
  * C++ demangling support missing from perf (LP: #1396654)
    - [Packaging] fix a mistype
  * arm-smmu-v3 arm-smmu-v3.3.auto: CMD_SYNC timeout (LP: #1818162)
    - iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
  * Crash in nvme_irq_check() when using threaded interrupts (LP: #1818747)
    - nvme-pci: fix out of bounds access in nvme_cqe_pending
  * CVE-2019-9003
    - ipmi: fix use-after-free of user->release_barrier.rda
  * CVE-2019-9162
    - netfilter: nf_nat_snmp_basic: add missing length checks in ASN.1 cbs
  * CVE-2019-9213
    - mm: enforce min addr even if capable() in expand_downwards()
  * CVE-2019-3460
    - Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
  * tun/tap: unable to manage carrier state from userland (LP: #1806392)
    - tun: implement carrier change
  * CVE-2019-8980
    - exec: Fix mem leak in kernel_read_file
  * [Packaging] Allow overlay of config annotations (LP: #1752072)
    - [Packaging] config-check: Add an include directive
  * amdgpu with mst WARNING on blanking (LP: #1814308)
    - drm/amd/display: Fix MST dp_blank REG_WAIT timeout
  * CVE-2019-7308
    - bpf: move {prev_,}insn_idx into verifier env
    - bpf: move tmp variable into ax register in interpreter
    - bpf: enable access to ax register also from verifier rewrite
    - bpf: restrict map value pointer arithmetic for unprivileged
    - bpf: restrict stack pointer arithmetic for unprivileged
    - bpf: restrict unknown scalars of mixed signed bounds for unprivileged
    - bpf: fix check_map_access smin_value test when pointer contains offset
    - bpf: prevent out of bounds speculation on pointer arithmetic
    - bpf: fix sanitation of alu op with pointer / scalar type from different
      paths
    - bpf: add various test cases to test_verifier
    - bpf: add various test cases to selftests
  * CVE-2017-5753
    - bpf: fix inner map masking to prevent oob under speculation
  * Use memblock quirk instead of delayed allocation for GICv3 LPI tables
    (LP: #1816425)
    - efi/arm: Revert "Defer persistent reservations until after paging_init()"
    - arm64, mm, efi: Acco...