[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.15.0-10.11

---
linux (4.15.0-10.11) bionic; urgency=medium

  * linux: 4.15.0-10.11 -proposed tracker (LP: #1749250)

  * "swiotlb: coherent allocation failed" dmesg spam with linux 4.15.0-9.10
(LP: #1749202)
- swiotlb: suppress warning when __GFP_NOWARN is set
- drm/ttm: specify DMA_ATTR_NO_WARN for huge page pools

  * linux-tools: perf incorrectly linking libbfd (LP: #1748922)
- SAUCE: tools -- add ability to disable libbfd
- [Packaging] correct disablement of libbfd

  * [Artful] Realtek ALC225: 2 secs noise when a headset plugged in
(LP: #1744058)
- ALSA: hda/realtek - update ALC225 depop optimize

  * [Artful] Support headset mode for DELL WYSE (LP: #1723913)
- SAUCE: ALSA: hda/realtek - Add support headset mode for DELL WYSE

  * headset mic can't be detected on two Dell machines (LP: #1748807)
- ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289
- ALSA: hda - Fix headset mic detection problem for two Dell machines

  * Bionic update to v4.15.3 stable release (LP: #1749191)
- ip6mr: fix stale iterator
- net: igmp: add a missing rcu locking section
- qlcnic: fix deadlock bug
- qmi_wwan: Add support for Quectel EP06
- r8169: fix RTL8168EP take too long to complete driver initialization.
- tcp: release sk_frag.page in tcp_disconnect
- vhost_net: stop device during reset owner
- ipv6: addrconf: break critical section in addrconf_verify_rtnl()
- ipv6: change route cache aging logic
- Revert "defer call to mem_cgroup_sk_alloc()"
- net: ipv6: send unsolicited NA after DAD
- rocker: fix possible null pointer dereference in
  rocker_router_fib_event_work
- tcp_bbr: fix pacing_gain to always be unity when using lt_bw
- cls_u32: add missing RCU annotation.
- ipv6: Fix SO_REUSEPORT UDP socket with implicit sk_ipv6only
- soreuseport: fix mem leak in reuseport_add_sock()
- net_sched: get rid of rcu_barrier() in tcf_block_put_ext()
- net: sched: fix use-after-free in tcf_block_put_ext
- media: mtk-vcodec: add missing MODULE_LICENSE/DESCRIPTION
- media: soc_camera: soc_scale_crop: add missing
  MODULE_DESCRIPTION/AUTHOR/LICENSE
- media: tegra-cec: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
- gpio: uniphier: fix mismatch between license text and MODULE_LICENSE
- crypto: tcrypt - fix S/G table for test_aead_speed()
- Linux 4.15.3

  * bnx2x_attn_int_deasserted3:4323 MC assert! (LP: #1715519) //
CVE-2018-126
- net: create skb_gso_validate_mac_len()
- bnx2x: disable GSO where gso_size is too big for hardware

  * ethtool -p fails to light NIC LED on HiSilicon D05 systems (LP: #1748567)
- net: hns: add ACPI mode support for ethtool -p

  * CVE-2017-5715 (Spectre v2 Intel)
- [Packaging] retpoline files must be sorted
- [Packaging] pull in retpoline files

  * [Feature] PXE boot with Intel Omni-Path (LP: #1712031)
- d-i: Add hfi1 to nic-modules

  * CVE-2017-5715 (Spectre v2 retpoline)
- [Packaging] retpoline -- add call site validation
- [Config] disable retpoline checks for first upload

  * Do not duplicate changelog entries assigned to more than one bug or CVE
(LP: #1743383)
- [Packaging] git-ubuntu-log -- handle multiple bugs/cves better

 -- Seth Forshee   Tue, 13 Feb 2018 11:33:58
-0600

** Changed in: linux (Ubuntu Bionic)
   Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5715

** CVE added: https://cve.mitre.org/cgi-
bin/cvename.cgi?name=2018-126

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

I can confirm that the kernel in bionic-proposed fixes the problem:

```
root@xam-softiron-1:/# gacutil -l
Illegal instruction (core dumped)
```

->

```
root@xam-softiron-1:/# gacutil -l
The following assemblies are installed into the GAC:
Mono.Security, Version=4.0.0.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756
Mono.Security.Providers.DotNet, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=0738eb9f132ed756
Mono.Security.Providers.NewSystemSource, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=0738eb9f132ed756
Mono.Security.Providers.NewTls, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=0738eb9f132ed756
Mono.Security.Providers.OldTls, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=0738eb9f132ed756
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Configuration, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=b03f5f7f11d50a3a
System.Security, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=b03f5f7f11d50a3a
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Number of items = 9
```

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Seth Forshee]

Fix committed to bionic.

** Changed in: linux (Ubuntu Bionic)
   Status: Confirmed => Fix Committed

** Changed in: linux (Ubuntu Bionic)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Bionic)
 Assignee: (unassigned) => Seth Forshee (sforshee)

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
 Assignee: Tim Gardner (timg-tpi) => (unassigned)

** Also affects: linux (Ubuntu Artful)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
   Status: Confirmed

** Also affects: linux (Ubuntu Zesty)
   Importance: Undecided
   Status: New

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

I've added Haw Loeung to the bug - it looks like the entire Canonical
ARM build farm will be affected by this bug as soon as they get upgraded
to either Bionic, or Xenial w/ a HWE.

Kernel version: Linux bos01-arm64-050 4.4.0-101-generic #124-Ubuntu SMP
Fri Nov 10 18:30:44 UTC 2017 aarch64

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  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

AlsaDevices:
 total 0
 crw-rw 1 root audio 116,  1 Dec 11 16:30 seq
 crw-rw 1 root audio 116, 33 Dec 11 16:30 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.14
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=23a992d8-8988-4576-83bc-c72bbb732c05
IwConfig: Error: [Errno 2] No such file or directory
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: AMD Overdrive/Supercharger
Package: linux (not installed)
PciMultimedia:
 
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:
 
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-42-generic 
root=UUID=6e667a22-b7af-45c6-9f03-46f07d8f1f71 ro
ProcVersionSignature: Ubuntu 4.10.0-42.46~16.04.1-generic 4.10.17
RelatedPackageVersions:
 linux-restricted-modules-4.10.0-42-generic N/A
 linux-backports-modules-4.10.0-42-generic  N/A
 linux-firmware 1.157.14
RfKill: Error: [Errno 2] No such file or directory
Tags:  xenial
Uname: Linux 4.10.0-42-generic aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/08/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: ROD1002C
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: To be filled by O.E.M.
dmi.board.vendor: To be filled by O.E.M.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 0
dmi.chassis.vendor: AMD
dmi.chassis.version: To be filled by O.E.M.
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrROD1002C:bd04/08/2016:svnAMD:pnOverdrive/Supercharger:pvrTobefilledbyO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnAMD:ct0:cvrTobefilledbyO.E.M.:
dmi.product.name: Overdrive/Supercharger
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: AMD


** Tags added: apport-collected xenial

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  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

** Changed in: linux (Ubuntu)
   Status: Fix Released => New

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

Nominated releases do not contain 464e0afc8e799, so revert the ability
to run ARMv7 binaries (which severely screws with my CI servers)

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  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

Yeah, in the ubuntu-zesty kernel tree, CONFIG_ARMV8_DEPRECATED hasn't
changed since 0a7cc07d51ea4 in 2014. Commit 464e0afc8e799 from ubuntu-
xenial never made it in there.

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[directhex]

It seems this issue was reopened in Zesty, which means the Xenial HWE is
broken?

builder@xam-softiron-4:~$ uname -a
Linux xam-softiron-4 4.10.0-42-generic #46~16.04.1-Ubuntu SMP Mon Dec 4 
15:57:47 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux
builder@xam-softiron-4:~$ grep CONFIG_ARMV8_DEPRECATED 
/boot/config-4.10.0-42-generic 
# CONFIG_ARMV8_DEPRECATED is not set

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  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.2.0-34.39

---
linux (4.2.0-34.39) wily; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
- LP: #1555821

  [ Florian Westphal ]

  * SAUCE: [nf] netfilter: x_tables: check for size overflow
- LP: #1555353
  * SAUCE: [nf,v2] netfilter: x_tables: don't rely on well-behaving
userspace
- LP: #1555338

linux (4.2.0-33.38) wily; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
- LP: #1554649

  [ Upstream Kernel Changes ]

  * Revert "drm/radeon: call hpd_irq_event on resume"
- LP: #1554608
  * cxl: Fix PSL timebase synchronization detection
- LP: #1532914

linux (4.2.0-32.37) wily; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
- LP: #1550045

  [ Kamal Mostafa ]

  * Merged back Ubuntu-4.2.0-31.36

linux (4.2.0-31.36) wily; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
- LP: #1548579

  [ Andy Whitcroft ]

  * [Debian] hv: hv_set_ifconfig -- convert to python3
- LP: #1506521
  * [Debian] hv: hv_set_ifconfig -- switch to approved indentation
- LP: #1540586
  * [Debian] hv: hv_set_ifconfig -- fix numerous parameter handling issues
- LP: #1540586

  [ Carol L Soto ]

  * SAUCE: IB/IPoIB: Do not set skb truesize since using one linearskb
- LP: #1541326

  [ Dan Streetman ]

  * SAUCE: nbd: ratelimit error msgs after socket close
- LP: #1505564

  [ Tim Gardner ]

  * Revert "SAUCE: (noup) cxlflash: Fix to avoid virtual LUN failover
failure"
- LP: #1541635
  * Revert "SAUCE: (noup) cxlflash: Fix to escalate LINK_RESET also on port
1"
- LP: #1541635
  * [Config] ARMV8_DEPRECATED=y
- LP: #1545542

  [ Upstream Kernel Changes ]

  * x86/xen/p2m: hint at the last populated P2M entry
- LP: #1542941
  * mm: add dma_pool_zalloc() call to DMA API
- LP: #1543737
  * sctp: Prevent soft lockup when sctp_accept() is called during a timeout
event
- LP: #1543737
  * xen-netback: respect user provided max_queues
- LP: #1543737
  * xen-netfront: respect user provided max_queues
- LP: #1543737
  * xen-netfront: update num_queues to real created
- LP: #1543737
  * iio: adis_buffer: Fix out-of-bounds memory access
- LP: #1543737
  * KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8
- LP: #1543737
  * KVM: PPC: Fix ONE_REG AltiVec support
- LP: #1543737
  * x86/irq: Call chip->irq_set_affinity in proper context
- LP: #1543737
  * drm/amdgpu: fix tonga smu resume
- LP: #1543737
  * perf kvm record/report: 'unprocessable sample' error while
recording/reporting guest data
- LP: #1543737
  * hrtimer: Handle remaining time proper for TIME_LOW_RES
- LP: #1543737
  * timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
- LP: #1543737
  * posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper
- LP: #1543737
  * itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper
- LP: #1543737
  * drm/amdgpu: Use drm_calloc_large for VM page_tables array
- LP: #1543737
  * drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
- LP: #1543737
  * drm/radeon: properly byte swap vce firmware setup
- LP: #1543737
  * ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist"
- LP: #1543737
  * ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()
- LP: #1543737
  * hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
- LP: #1543737
  * usb: cdc-acm: handle unlinked urb in acm read callback
- LP: #1543737
  * usb: cdc-acm: send zero packet for intel 7260 modem
- LP: #1543737
  * cdc-acm:exclude Samsung phone 04e8:685d
- LP: #1543737
  * usb: hub: do not clear BOS field during reset device
- LP: #1543737
  * USB: cp210x: add ID for IAI USB to RS485 adaptor
- LP: #1543737
  * USB: visor: fix null-deref at probe
- LP: #1543737
  * USB: serial: visor: fix crash on detecting device without write_urbs
- LP: #1543737
  * USB: serial: option: Adding support for Telit LE922
- LP: #1543737
  * ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
- LP: #1543737
  * ALSA: seq: Degrade the error message for too many opens
- LP: #1543737
  * USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
- LP: #1543737
  * arm64: kernel: fix architected PMU registers unconditional access
- LP: #1543737
  * USB: option: fix Cinterion AHxx enumeration
- LP: #1543737
  * ALSA: compress: Disable GET_CODEC_CAPS ioctl for some architectures
- LP: #1543737
  * ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay
- LP: #1543737
  * virtio_pci: fix use after free on release
- LP: #1543737
  * ALSA: bebob: Use a signed return type for get_formation_index
- LP: #1543737
  * arm64: errata: Add -mpc-relative-literal-loads to build flags
- LP: #1533009, #1543737
  * arm64: mm: avoid calling apply_to_page_range on empty range
- LP: #1543737
  * x86/mm: Fix types used in pgprot 

[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Ryan Tucker]

As the original impetus for this bug report: I cannot personally verify
that this solves the original problem
(https://answers.launchpad.net/launchpad/+question/285505) as it
manifests itself on the Launchpad build farm and I do not have necessary
hardware to reproduce this independently.

Latest attempt is https://launchpadlibrarian.net/242901620
/buildlog_ubuntu-precise-
armhf.bladerf_2016.01-rc1+1SNAPSHOT20160225213708-git61c3b57~precise_BUILDING.txt.gz
... note presence of "Illegal instruction" within the log, and the
kernel version of 4.2.0-30-generic on aarch64.

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Brad Figg]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
wily' to 'verification-done-wily'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-wily

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.4.0-6.21

---
linux (4.4.0-6.21) xenial; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
- LP: #1546283

  *  Naples/Zen, NTB Driver  (LP: #1542071)
- [Config] CONFIG_NTB_AMD=m
- NTB: Add support for AMD PCI-Express Non-Transparent Bridge

  * [Hyper-V] kernel panic occurs when installing Ubuntu Server x32 (LP: 
#1495983)
- SAUCE: storvsc: use small sg_tablesize on x86

  * Enable arm64 emulation of removed ARMv7 instructions (LP: #1545542)
- [Config] CONFIG_ARMV8_DEPRECATED=y

  * Surelock-GA2:kernel panic/ exception @ 
pcibios_set_pcie_reset_state+0x118/0x280 + cxl_reset+0x5c/0xc0 (LP: #1545037)
- powerpc/eeh: Fix stale cached primary bus

  * Miscellaneous Ubuntu changes
- SAUCE: fs: Add user namesapace member to struct super_block
- SAUCE: fs: Limit file caps to the user namespace of the super block
- SAUCE: Smack: Add support for unprivileged mounts from user namespaces
- SAUCE: block_dev: Support checking inode permissions in lookup_bdev()
- SAUCE: block_dev: Check permissions towards block device inode when 
mounting
- SAUCE: fs: Treat foreign mounts as nosuid
- SAUCE: selinux: Add support for unprivileged mounts from user namespaces
- SAUCE: userns: Replace in_userns with current_in_userns
- SAUCE: Smack: Handle labels consistently in untrusted mounts
- SAUCE: fs: Check for invalid i_uid in may_follow_link()
- SAUCE: cred: Reject inodes with invalid ids in set_create_file_as()
- SAUCE: fs: Refuse uid/gid changes which don't map into s_user_ns
- SAUCE: fs: Update posix_acl support to handle user namespace mounts
- SAUCE: fs: Ensure the mounter of a filesystem is privileged towards its 
inodes
- SAUCE: fs: Don't remove suid for CAP_FSETID in s_user_ns
- SAUCE: fs: Allow superblock owner to access do_remount_sb()
- SAUCE: capabilities: Allow privileged user in s_user_ns to set security.* 
xattrs
- SAUCE: fuse: Add support for pid namespaces
- SAUCE: fuse: Support fuse filesystems outside of init_user_ns
- SAUCE: fuse: Restrict allow_other to the superblock's namespace or a 
descendant
- SAUCE: fuse: Allow user namespace mounts
- SAUCE: mtd: Check permissions towards mtd block device inode when mounting
- SAUCE: fs: Update i_[ug]id_(read|write) to translate relative to s_user_ns
- SAUCE: quota: Convert ids relative to s_user_ns
- SAUCE: evm: Translate user/group ids relative to s_user_ns when computing 
HMAC
- SAUCE: fs: Allow CAP_SYS_ADMIN in s_user_ns to freeze and thaw filesystems
- SAUCE: quota: Treat superblock owner as privilged
- SAUCE: ima/evm: Allow root in s_user_ns to set xattrs
- SAUCE: block_dev: Forbid unprivileged mounting when device is opened for 
writing
- SAUCE: ext4: Add support for unprivileged mounts from user namespaces
- SAUCE: ext4: Add module parameter to enable user namespace mounts
- SAUCE: fuse: Add module parameter to enable user namespace mounts

  * Miscellaneous upstream changes
- megaraid: Fix possible NULL pointer deference in mraid_mm_ioctl
- libahci: Implement the capability to override the generic ahci interrupt 
handler.
- ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci.
- ahci_xgene: Implement the workaround to fix the missing of the edge 
interrupt for the HOST_IRQ_STAT.

 -- Tim Gardner   Fri, 12 Feb 2016 09:49:05
-0700

** Changed in: linux (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Andy Whitcroft]

** Changed in: linux (Ubuntu Wily)
   Status: In Progress => Fix Committed

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[Tim Gardner]

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: Confirmed

** Also affects: linux (Ubuntu Wily)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu Wily)
   Status: New => In Progress

** Changed in: linux (Ubuntu Wily)
 Assignee: (unassigned) => Tim Gardner (timg-tpi)

** Changed in: linux (Ubuntu Xenial)
   Status: Confirmed => Fix Committed

** Changed in: linux (Ubuntu Xenial)
 Assignee: (unassigned) => Tim Gardner (timg-tpi)

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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[Bug 1545542] Re: Enable arm64 emulation of removed ARMv7 instructions

[William Grant]

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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Title:
  Enable arm64 emulation of removed ARMv7 instructions

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