linux-azure: 4.13.0-1013.16 -proposed tracker

[Stefan Bader]

This bug is for tracking the <version to be filled> upload package. This bug will contain status and testing results related to that upload.

For an explanation of the tasks and the associated workflow see: https://wiki.ubuntu.com/Kernel/kernel-sru-workflow
-- swm properties --
boot-testing-requested: true
kernel-stable-master-bug: 1755762
phase: Promoted to proposed
proposed-announcement-sent: true
proposed-testing-requested: true

[Po-Hsu Lin (cypressyew)]

4.13.0-1013.16 - azure
Regression test CMPL.

Issue to note in x86_64 (azure):
  ebizzy - failed on Standard_A0, passed on the rest
  libhugetlbfs - 1 failed (brk_near_huge, bug 1653597), Killed by signal 1, bad config 3, passed on the rest
  monotonic_time - all three tests (or just tsc test) failed on some instances, passed on the rest
  ubuntu_kvm_unit_tests - test skipped due to no KVM support, vmx_control will c
rash E4 nodes (bug 1747892)
  ubuntu_lttng_smoke_test - failed on Standard_A0 only, passed on the rest
  ubuntu_lxc - lxc-test-ubuntu failed (Failed to start networking in ubuntu-cloud container, Failed creating ubuntu-cloud container due to too many open files), passed on the rest
  ubuntu_qrt_apparmor - failed on Standard_A0 only, passed on the rest
  ubuntu_stress_smoke_test - sysfs caused kernel oopsed, hard to reproduce (bug 1757057)
  ubuntu_unionmount_overlayfs_suite - Invalid cross-device link was not produced (bug 1727290)

[Joshua R. Poulson (jrp)]

We are seeing soft lockups in Azure with 4.13.0-1013 on some accelerated networking-enabled guests. I'm withholding stakeholder signoff until we can diagnose this.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 4.13.0-1014.17

---------------
linux-azure (4.13.0-1014.17) xenial; urgency=medium

  * linux-azure: 4.13.0-1014.17 -proposed tracker (LP: #1761459)

  * retpoline hints: primary infrastructure and initial hints (LP: #1758856)
    - [Config] retpoline -- switch to new format

  * [Hyper-V] PCI: hv: Fix 2 hang issues in hv_compose_msi_msg (LP: #1758378)
    - SAUCE: PCI: hv: Serialize the present and eject work items
    - SAUCE: PCI: hv: Fix 2 hang issues in hv_compose_msi_msg()
    - SAUCE: PCI: hv: Fix a comment typo in _hv_pcifront_read_config()
    - SAUCE: PCI: hv: Remove the bogus test in hv_eject_device_work()
    - SAUCE: PCI: hv: Only queue new work items in hv_pci_devices_present() if
      necessary

  [ Ubuntu: 4.13.0-39.44 ]

  * linux: 4.13.0-39.44 -proposed tracker (LP: #1761456)
  * intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux-
    image-4.13.0-37-generic) (LP: #1759920) // CVE-2017-5715 (Spectre v2
    Intel) // CVE-2017-5754
    - x86/mm: Reinitialize TLB state on hotplug and resume
  * intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux-
    image-4.13.0-37-generic) (LP: #1759920) // CVE-2017-5715 (Spectre v2 Intel)
    - Revert "x86/mm: Only set IBPB when the new thread cannot ptrace current
      thread"
    - x86/speculation: Use Indirect Branch Prediction Barrier in context switch
  * DKMS driver builds fail with: Cannot use CONFIG_STACK_VALIDATION=y, please
    install libelf-dev, libelf-devel or elfutils-libelf-devel (LP: #1760876)
    - [Packaging] include the retpoline extractor in the headers
  * retpoline hints: primary infrastructure and initial hints (LP: #1758856)
    - [Packaging] retpoline-extract: flag *0xNNN(%reg) branches
    - x86/speculation, objtool: Annotate indirect calls/jumps for objtool
    - x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32bit
    - x86/paravirt, objtool: Annotate indirect calls
    - [Packaging] retpoline -- add safe usage hint support
    - [Packaging] retpoline-check -- only report additions
    - [Packaging] retpoline -- widen indirect call/jmp detection
    - [Packaging] retpoline -- elide %rip relative indirections
    - [Packaging] retpoline -- clear hint information from packages
    - KVM: x86: Make indirect calls in emulator speculation safe
    - KVM: VMX: Make indirect call speculation safe
    - x86/boot, objtool: Annotate indirect jump in secondary_startup_64()
    - SAUCE: early/late -- annotate indirect calls in early/late initialisation
      code
    - SAUCE: vga_set_mode -- avoid jump tables
    - [Config] retpoline -- switch to new format
    - [Packaging] retpoline hints -- handle missing files when RETPOLINE not
      enabled
    - [Packaging] final-checks -- remove check for empty retpoline files
  * retpoline: ignore %cs:0xNNN constant indirections (LP: #1752655)
    - [Packaging] retpoline -- elide %cs:0xNNNN constants on i386
  * zfs system process hung on container stop/delete (LP: #1754584)
    - SAUCE: Fix non-prefaulted page deadlock (LP: #1754584)
  * zfs-linux 0.6.5.11-1ubuntu5 ADT test failure with linux 4.15.0-1.2
    (LP: #1737761)
    ...