linux-raspi2: rebase the Eoan kernel to the latest rpi-5.3.y branch (2a085c9b42ea)

[Hui Wang]

[Impact]
https://bugs.launchpad.net/bugs/1848790
https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1848703
Recently we had 2 bugs about the usb host on rpi4 with 4G ram, and I found
the kernel in the github already had the fix for this issue, and besides this
fix, it also had 106 more patches than our eoan kernel, those patches were
merged during or after we prepared our eoan kernel, now let us pick those
patches to our eoan too.

[Fix]
For the usb host issue, it adds a fix by setting the usb dma bounce buffer
under 1G.

[Test Case]
some users and I alreaady tested the armhf and arm64 kernel on pi4 and pi3
boards, the usb host worked well and no other regressions introduced.

[Regression Risk]
Low, these patches are from the github which is the pi official kernel
repository. And we already tested armhf and arm64 kernel on pi4/3 boards.

The rpi kernel of https://github.com/raspberrypi/linux.git has been updated, for the branch of rpi-5.3.y (Eoan kernel base on this branch), there are 107 new patches merged, we also need to merge those patches to Eoan kernel.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Brad Figg (brad-figg)]

@all,

The new raspi2 kernel in -proposed contains these changes. Please test.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-raspi2 - 5.3.0-1012.14

---------------
linux-raspi2 (5.3.0-1012.14) eoan; urgency=medium

  [ Ubuntu: 5.3.0-22.24 ]

  * [REGRESSION] md/raid0: cannot assemble multi-zone RAID0 with default_layout
    setting (LP: #1849682)
    - Revert "md/raid0: avoid RAID0 data corruption due to layout confusion."
  * refcount underflow and type confusion in shiftfs (LP: #1850867) // CVE-2019-15793
    - SAUCE: shiftfs: Correct id translation for lower fs operations
    - SAUCE: shiftfs: prevent type confusion
    - SAUCE: shiftfs: Fix refcount underflow in btrfs ioctl handling
  * CVE-2018-12207
    - kvm: x86, powerpc: do not allow clearing largepages debugfs entry
    - SAUCE: KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is
      active
    - SAUCE: x86: Add ITLB_MULTIHIT bug infrastructure
    - SAUCE: kvm: mmu: ITLB_MULTIHIT mitigation
    - SAUCE: kvm: Add helper function for creating VM worker threads
    - SAUCE: kvm: x86: mmu: Recovery of shattered NX large pages
    - SAUCE: cpu/speculation: Uninline and export CPU mitigations helpers
    - SAUCE: kvm: x86: mmu: Apply global mitigations knob to ITLB_MULTIHIT
  * CVE-2019-11135
    - x86/msr: Add the IA32_TSX_CTRL MSR
    - x86/cpu: Add a helper function x86_read_arch_cap_msr()
    - x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
    - x86/speculation/taa: Add mitigation for TSX Async Abort
    - x86/speculation/taa: Add sysfs reporting for TSX Async Abort
    - kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
    - x86/tsx: Add "auto" option to the tsx= cmdline parameter
    - x86/speculation/taa: Add documentation for TSX Async Abort
    - x86/tsx: Add config options to set tsx=on|off|auto
    - [Config] Disable TSX by default when possible
  * CVE-2019-0154
    - SAUCE: drm/i915: Lower RM timeout to avoid DSI hard hangs
    - SAUCE: drm/i915/gen8+: Add RC6 CTX corruption WA
  * CVE-2019-0155
    - SAUCE: drm/i915: Rename gen7 cmdparser tables
    - SAUCE: drm/i915: Disable Secure Batches for gen6+
    - SAUCE: drm/i915: Remove Master tables from cmdparser
    - SAUCE: drm/i915: Add support for mandatory cmdparsing
    - SAUCE: drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
    - SAUCE: drm/i915: Allow parsing of unsized batches
    - SAUCE: drm/i915: Add gen9 BCS cmdparsing
    - SAUCE: drm/i915/cmdparser: Use explicit goto for error paths
    - SAUCE: drm/i915/cmdparser: Add support for backward jumps
    - SAUCE: drm/i915/cmdparser: Ignore Length operands during command matching

 -- Juerg Haefliger <email address hidden> Mon, 11 Nov 2019 08:19:54 +0100

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-raspi2 - 5.3.0-1014.16

---------------
linux-raspi2 (5.3.0-1014.16) eoan; urgency=medium

  * eoan/linux-raspi2: 5.3.0-1014.16 -proposed tracker (LP: #1854006)

  * Need to disable CONFIG_DRＭ_V3D in the raspi2 eoan kernel (LP: #1853789)
    - [config] raspi2: Revert "UBUNTU: [config] raspi2: CONFIG_DRM_V3D=m"

linux-raspi2 (5.3.0-1013.15) eoan; urgency=medium

  * eoan/linux-raspi2: 5.3.0-1013.15 -proposed tracker (LP: #1852220)

  * Eoan update: 5.3.9 upstream stable release (LP: #1851550)
    - raspi2: [Config] Remove CONFIG_GENERIC_COMPAT_VDSO and
      CONFIG_CROSS_COMPILE_COMPAT_VDSO

  * Eoan update: v5.3.8 upstream stable release (LP: #1850456)
    - raspi2: [Config] CAVIUM_TX2_ERRATUM_219=n

  * IO errors when writing large amounts of data to USB storage in eoan on
    RPI2/3 (armhf kernel) (LP: #1852510)
    - SAUCE: dwc_otg: checking the urb->transfer_buffer too early (#3332)

  * Incorrect raspi2 snapcraft.yaml file (LP: #1851469)
    - [Packaging] raspi2: Fix snapcraft.yaml

  * CONFIG_DRＭ_V3D is disabled for linux-raspi2 of eoan (LP: #1850876)
    - [config] raspi2: CONFIG_DRM_V3D=m

  [ Ubuntu: 5.3.0-24.26 ]

  * eoan/linux: 5.3.0-24.26 -proposed tracker (LP: #1852232)
  * Eoan update: 5.3.9 upstream stable release (LP: #1851550)
    - io_uring: fix up O_NONBLOCK handling for sockets
    - dm snapshot: introduce account_start_copy() and account_end_copy()
    - dm snapshot: rework COW throttling to fix deadlock
    - Btrfs: fix inode cache block reserve leak on failure to allocate data space
    - btrfs: qgroup: Always free PREALLOC META reserve in
      btrfs_delalloc_release_extents()
    - iio: adc: meson_saradc: Fix memory allocation order
    - iio: fix center temperature of bmc150-accel-core
    - libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature
    - perf tests: Avoid raising SEGV using an obvious NULL dereference
    - perf map: Fix overlapped map handling
    - perf script brstackinsn: Fix recovery from LBR/binary mismatch
    - perf jevents: Fix period for Intel fixed counters
    - perf tools: Propagate get_cpuid() error
    - perf annotate: Propagate perf_env__arch() error
    - perf annotate: Fix the signedness of failure returns
    - perf annotate: Propagate the symbol__annotate() error return
    - perf annotate: Fix arch specific ->init() failure errors
    - perf annotate: Return appropriate error code for allocation failures
    - perf annotate: Don't return -1 for error when doing BPF disassembly
    - staging: rtl8188eu: fix null dereference when kzalloc fails
    - RDMA/siw: Fix serialization issue in write_space()
    - RDMA/hfi1: Prevent memory leak in sdma_init
    - RDMA/iw_cxgb4: fix SRQ access from dump_qp()
    - RDMA/iwcm: Fix a lock inversion issue
    - HID: hyperv: Use in-place iterator API in the channel callback
    - kselftest: exclude failed TARGETS from runlist
    - selftests/kselftest/runner.sh: Add 45 second timeout per test
    - nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request
    - arm64: cpufeature: Effectively expose FRINT capability to userspace
    - arm64: Fix incorrect irqflag restore for priority masking fo...