Ubuntu
linux package

P-state not working in kernel 4.13

Bug #1743269 reported by Eduardo Rudas on 2018-01-14

This bug affects 1 person

	Status	Importance	Assigned to
linux (Ubuntu)	Fix Released	Medium	Joseph Salisbury
Artful	Fix Released	Medium	Joseph Salisbury
Bionic	Fix Released	Medium	Joseph Salisbury

Bug Description

== SRU Justification ==
Commits b29c6ef7bb12 and 7d5905dc14a8 fix a regression in Artful. They
were both added to mainline in v4.15-rc1 and fix the following two commits:
b29c6ef7bb12 Fixes: 4815d3c56d1e (cpufreq: x86: Make scaling_cur_freq behave more as expected)
7d5905dc14a8 Fixes: 890da9cf0983 (Revert "x86: do not use cpufreq_quick_get() for /proc/cpuinfo "cpu MHz"")
According to the bug report, P-state is not working in Artful, but it was working
in Zesty. This bug is happening on a Lenovo Thinkpad X230 with an Intel Core i5-3210M CPU.
The bug reporter is using CPU scaling to improve battery life.

== Fixes ==
b29c6ef7bb12 ("x86 / CPU: Avoid unnecessary IPIs in arch_freq_get_on_cpu()")
7d5905dc14a8 ("x86 / CPU: Always show current CPU frequency in /proc/cpuinfo")

== Regression Potential ==
Low. The two commit fix a current regression and have had additiona upstream reviews
from being send to stable.

## Original Bug Description ##
I have a Lenovo Thinkpad X230 with an Intel Core i5-3210M CPU. I'm using Xubuntu 17.10 (Description: Ubuntu 17.10, Release: 17.10). I use tlp 1.0-1~artful in order to improve battery performance, particularly enabling the Intel P-state performance scaling. In Xubuntu 17.04 it worked flawlessly, but when I upgraded to 17.10 the processor doesn't scale anymore. I ran all the updates and it's not working. I also did a clean install using another hard drive and the problem persist.

I searched the tlp forums and similar problems pointed to a kernel bug, so I'm filing this report.

I tested different mainline kernels in order to see what kernel version is causing the problem:

Up to mainline kernel 4.12.14 generic, P-state scaling is OK
Kernel 4.13 generic up to kernel 4.14.12 generic, P-state scaling is not working
Kernel 4.14.13 generic up to 4.15 rc7 generic, P-state scaling is OK

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-25-generic 4.13.0-25.29
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: eduar 1686 F.... pulseaudio
CurrentDesktop: XFCE
Date: Sun Jan 14 18:46:27 2018
HibernationDevice: RESUME=UUID=ec172c41-ddb8-4d67-8249-390aa1bb6331
InstallationDate: Installed on 2017-02-07 (341 days ago)
InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: LENOVO 232032U
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-25-generic root=UUID=a5c459a3-f6c9-40cd-a648-e7b8b28a2ee6 ro radeon.dpm=1 quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.13.0-25-generic N/A
linux-backports-modules-4.13.0-25-generic N/A
linux-firmware 1.169.1
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2018-01-13 (1 days ago)
dmi.bios.date: 09/25/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ETB0WW (2.70 )
dmi.board.asset.tag: Not Available
dmi.board.name: 232032U
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG2ETB0WW(2.70):bd09/25/2017:svnLENOVO:pn232032U:pvrThinkPadX230:rvnLENOVO:rn232032U:rvrNODPK:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X230
dmi.product.name: 232032U
dmi.product.version: ThinkPad X230
dmi.sys.vendor: LENOVO

See original description

Tags:

CVE References

Revision history for this message

Eduardo Rudas (eduardorudas) wrote on 2018-01-14:

AlsaInfo.txt Edit (38.3 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (426 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (60.5 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.1 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (506 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (7.3 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (10.7 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (650 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (3.9 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (985 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (340 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.7 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (5.4 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (20.2 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (128 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (155.3 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (101.7 KiB, text/plain; charset="utf-8")

Revision history for this message

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2018-01-15: Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-01-16:

We can perform a "Reverse" kernel bisect to identify the commit that fixes this bug in mainline. We first need to identify the last kernel version that had the bug and the first kernel that did no.

Can you test the following two kernels:
v4.14-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc1/
v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/

Changed in linux (Ubuntu):
importance:	Undecided → Medium
status:	Confirmed → Triaged
tags:	added: needs-bisect

Revision history for this message

Eduardo Rudas (eduardorudas) wrote on 2018-01-16:

Tested:

v4.14-rc1: had the bug
v4.15-rc1: did not had the bug

Just as an additional information, I did some tests and the last kernel version that had the bug was 4.14.12 and the first that did not was 4.14.13.

Joseph Salisbury (jsalisbury) on 2018-01-17

Changed in linux (Ubuntu Artful):
importance:	Undecided → Medium
status:	New → Triaged

Joseph Salisbury (jsalisbury) on 2018-01-17

Changed in linux (Ubuntu Artful):
status:	Triaged → In Progress
Changed in linux (Ubuntu Bionic):
status:	Triaged → In Progress
Changed in linux (Ubuntu Artful):
assignee:	nobody → Joseph Salisbury (jsalisbury)
Changed in linux (Ubuntu Bionic):
assignee:	nobody → Joseph Salisbury (jsalisbury)

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-01-17:

I built a test kernel with two commits 7d5905dc14a and b29c6ef7bb. The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1743269

Can you test this kernel and see if it resolves this bug?

Note, to test this kernel, you need to install both the linux-image and linux-image-extra .deb packages.

Thanks in advance!

Revision history for this message

Eduardo Rudas (eduardorudas) wrote on 2018-01-17:

You welcome! I'm happy to help!

Tested, it resolves the bug. Thanks!!! You're the best!

Just to be sure it was the right testing kernel, the output of uname -a:

4.13.0-25-generic #29~lp1743269TwoCommits SMP Wed Jan 17 17:15:20 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-01-17:

Thanks again for testing. I'll submit an SRU request to have these two commits included in the Ubuntu kernel.

Revision history for this message

Eduardo Rudas (eduardorudas) wrote on 2018-01-17:

Excellent! Hope the commits are included soon in the coming updates.
Thanks!

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-01-19:

Submitted SRU request for Artful and Bionic:
https://lists.ubuntu.com/archives/kernel-team/2018-January/089416.html

description:

updated

Seth Forshee (sforshee) on 2018-01-19

Changed in linux (Ubuntu Bionic):
status:	In Progress → Fix Committed

Khaled El Mously (kmously) on 2018-02-04

Changed in linux (Ubuntu Artful):
status:	In Progress → Fix Committed

Revision history for this message

Stefan Bader (smb) wrote on 2018-03-19:

#10

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-artful' to 'verification-done-artful'. If the problem still exists, change the tag 'verification-needed-artful' to 'verification-failed-artful'.

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-artful

Revision history for this message

Eduardo Rudas (eduardorudas) wrote on 2018-03-22:

#11

I have tested the kernel in -proposed and the problem is solved.

~$ uname -a
Linux Anonymlus-0FD42 4.13.0-38-generic #43-Ubuntu SMP Wed Mar 14 15:20:44 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

tags:

added: verification-done-artful
removed: verification-needed-artful

Revision history for this message

Launchpad Janitor (janitor) wrote on 2018-04-03:

#12

Download full text (18.9 KiB)

This bug was fixed in the package linux - 4.13.0-38.43

---------------
linux (4.13.0-38.43) artful; urgency=medium

* linux: 4.13.0-38.43 -proposed tracker (LP: #1755762)

  * Servers going OOM after updating kernel from 4.10 to 4.13 (LP: #1748408)
    - i40e: Fix memory leak related filter programming status
    - i40e: Add programming descriptors to cleaned_count

* [SRU] Lenovo E41 Mic mute hotkey is not responding (LP: #1753347)
- platform/x86: ideapad-laptop: Increase timeout to wait for EC answer

* fails to dump with latest kpti fixes (LP: #1750021)
- kdump: write correct address of mem_section into vmcoreinfo

  * 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
    - ALSA: hda - Fix a wrong FIXUP for alc289 on Dell machines

  * CIFS SMB2/SMB3 does not work for domain based DFS (LP: #1747572)
    - CIFS: make IPC a regular tcon
    - CIFS: use tcon_ipc instead of use_ipc parameter of SMB2_ioctl
    - CIFS: dump IPC tcon in debug proc file

* i2c-thunderx: erroneous error message "unhandled state: 0" (LP: #1754076)
- i2c: octeon: Prevent error message on bus error

* hisi_sas: Add disk LED support (LP: #1752695)
- scsi: hisi_sas: directly attached disk LED feature for v2 hw

  * EDAC, sb_edac: Backport 1 patch to Ubuntu 17.10 (Fix missing DIMM sysfs
    entries with KNL SNC2/SNC4 mode) (LP: #1743856)
    - EDAC, sb_edac: Fix missing DIMM sysfs entries with KNL SNC2/SNC4 mode

  * [regression] Colour banding and artefacts appear system-wide on an Asus
    Zenbook UX303LA with Intel HD 4400 graphics (LP: #1749420)
    - drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA

* DVB Card with SAA7146 chipset not working (LP: #1742316)
- vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems

  * [Asus UX360UA] battery status in unity-panel is not changing when battery is
    being charged (LP: #1661876) // AC adapter status not detected on Asus
    ZenBook UX410UAK (LP: #1745032)
    - ACPI / battery: Add quirk for Asus UX360UA and UX410UAK

* ASUS UX305LA - Battery state not detected correctly (LP: #1482390)
- ACPI / battery: Add quirk for Asus GL502VSK and UX305LA

  * support thunderx2 vendor pmu events (LP: #1747523)
    - perf pmu: Extract function to get JSON alias map
    - perf pmu: Pass pmu as a parameter to get_cpuid_str()
    - perf tools arm64: Add support for get_cpuid_str function.
    - perf pmu: Add helper function is_pmu_core to detect PMU CORE devices
    - perf vendor events arm64: Add ThunderX2 implementation defined pmu core
      events
    - perf pmu: Add check for valid cpuid in perf_pmu__find_map()

* lpfc.ko module doesn't work (LP: #1746970)
- scsi: lpfc: Fix loop mode target discovery

  * Ubuntu 17.10 crashes on vmalloc.c (LP: #1739498)
    - powerpc/mm/book3s64: Make KERN_IO_START a variable
    - powerpc/mm/slb: Move comment next to the code it's referring to
    - powerpc/mm/hash64: Make vmalloc 56T on hash

* ethtool -p fails to light NIC LED on HiSilicon D05 systems (LP: #1748567)
- net...

This bug was fixed in the package linux - 4.13.0-38.43

---------------
linux (4.13.0-38.43) artful; urgency=medium

* linux: 4.13.0-38.43 -proposed tracker (LP: #1755762)

* Servers going OOM after updating kernel from 4.10 to 4.13 (LP: #1748408)
    - i40e: Fix memory leak related filter programming status
    - i40e: Add programming descriptors to cleaned_count

* [SRU] Lenovo E41 Mic mute hotkey is not responding (LP: #1753347)
    - platform/x86: ideapad-laptop: Increase timeout to wait for EC answer

* fails to dump with latest kpti fixes (LP: #1750021)
    - kdump: write correct address of mem_section into vmcoreinfo

* i2c-thunderx: erroneous error message "unhandled state: 0" (LP: #1754076)
    - i2c: octeon: Prevent error message on bus error

* hisi_sas: Add disk LED support (LP: #1752695)
    - scsi: hisi_sas: directly attached disk LED feature for v2 hw

* [regression] Colour banding and artefacts appear system-wide on an Asus
    Zenbook UX303LA with Intel HD 4400 graphics (LP: #1749420)
    - drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA

* DVB Card with SAA7146 chipset not working (LP: #1742316)
    - vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems

* ASUS UX305LA - Battery state not detected correctly (LP: #1482390)
    - ACPI / battery: Add quirk for Asus GL502VSK and UX305LA

* lpfc.ko module doesn't work (LP: #1746970)
    - scsi: lpfc: Fix loop mode target discovery

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

* CVE-2017-17807
    - KEYS: add missing permission check for request_key() destination

* [Artful SRU] Fix capsule update regression (LP: #1746019)
    - efi/capsule-loader: Reinstate virtual capsule mapping

* [Artful/Bionic] [Config] enable EDAC_GHES for ARM64 (LP: #1747746)
    - Ubuntu: [Config] enable EDAC_GHES for ARM64

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

* Cherry pick c96f5471ce7d for delayacct fix (LP: #1747769)
    - delayacct: Account blkio completion on the correct task

* Error in CPU frequency reporting when nominal and min pstates are same
    (cpufreq) (LP: #1746174)
    - cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin

* retpoline abi files are empty on i386 (LP: #1751021)
    - [Packaging] retpoline-extract -- instantiate retpoline files for i386
    - [Packaging] final-checks -- sanity checking ABI contents
    - [Packaging] final-checks -- check for empty retpoline files

* [P9,Power NV][WSP][Ubuntu 1804] : "Kernel access of bad area " when grouping
    different pmu events using perf fuzzer . (perf:) (LP: #1746225)
    - powerpc/perf: Fix oops when grouping different pmu events

* bnx2x_attn_int_deasserted3:4323 MC assert! (LP: #1715519) //
    CVE-2018-1000026
    - net: create skb_gso_validate_mac_len()
    - bnx2x: disable GSO where gso_size is too big for hardware

* Ubuntu16.04.03: ISAv3 initialize MMU registers before setting partition
    table (LP: #1736145)
    - powerpc/64s: Initialize ISAv3 MMU registers before setting partition table

* powerpc/powernv: Flush console before platform error reboot (LP: #1735159)
    - powerpc/powernv: Flush console before platform error reboot

* Touchpad stops working after a few seconds in Lenovo ideapad 320
    (LP: #1732056)
    - pinctrl/amd: fix masking of GPIO interrupts

* [Artful][Wyse 3040] System hang when trying to enable an offlined CPU core
    (LP: #1736393)
    - SAUCE: drm/i915:Don't set chip specific data
    - SAUCE: drm/i915: make previous commit affects Wyse 3040 only

* ppc64el: Do not call ibm,os-term on panic (LP: #1736954)
    - powerpc: Do not call ppc_md.panic in fadump panic notifier

* Artful update to 4.13.16 stable release (LP: #1744213)
    - tcp_nv: fix division by zero in tcpnv_acked()
    - net: vrf: correct FRA_L3MDEV encode type
    - tcp: do not mangle skb->cb[] in tcp_make_synack()
    - net: systemport: Correct IPG length settings
    - netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed
    - l2tp: don't use l2tp_tunnel_find() in l2tp_ip and l2tp_ip6
    - bonding: discard lowest hash bit for 802.3ad layer3+4
    - net: cdc_ether: fix divide by 0 on bad descriptors
    - net: qmi_wwan: fix divide by 0 on bad descriptors
    - qmi_wwan: Add missing skb_reset_mac_header-call
    - net: usb: asix: fill null-ptr-deref in asix_suspend
    - tcp: gso: avoid refcount_t warning from tcp_gso_segment()
    - tcp: fix tcp_fastretrans_alert warning
    - vlan: fix a use-after-free in vlan_device_event()
    - net/mlx5: Cancel health poll before sending panic teardown command
    - net/mlx5e: Set page to null in case dma mapping fails
    - af_netlink: ensure that NLMSG_DONE never fails in dumps
    - vxlan: fix the issue that neigh proxy blocks all icmpv6 packets
    - net: cdc_ncm: GetNtbFormat endian fix
    - fealnx: Fix building error on MIPS
    - net/sctp: Always set scope_id in sctp_inet6_skb_msgname
    - ima: do not update security.ima if appraisal status is not INTEGRITY_PASS
    - serial: omap: Fix EFR write on RTS deassertion
    - serial: 8250_fintek: Fix finding base_port with activated SuperIO
    - tpm-dev-common: Reject too short writes
    - rcu: Fix up pending cbs check in rcu_prepare_for_idle
    - ocfs2: fix cluster hang after a node dies
    - ocfs2: should wait dio before inode lock in ocfs2_setattr()
    - ipmi: fix unsigned long underflow
    - mm/page_alloc.c: broken deferred calculation
    - mm/page_ext.c: check if page_ext is not prepared
    - x86/cpu/amd: Derive L3 shared_cpu_map from cpu_llc_shared_mask
    - coda: fix 'kernel memory exposure attempt' in fsync
    - Linux 4.13.16

* Artful update to 4.13.15 stable release (LP: #1744212)
    - media: imon: Fix null-ptr-deref in imon_probe
    - media: dib0700: fix invalid dvb_detach argument
    - crypto: dh - Fix double free of ctx->p
    - crypto: dh - Don't permit 'p' to be 0
    - crypto: dh - Don't permit 'key' or 'g' size longer than 'p'
    - USB: early: Use new USB product ID and strings for DbC device
    - USB: usbfs: compute urb->actual_length for isochronous
    - USB: Add delay-init quirk for Corsair K70 LUX keyboards
    - usb: gadget: f_fs: Fix use-after-free in ffs_free_inst
    - USB: serial: metro-usb: stop I/O after failed open
    - USB: serial: Change DbC debug device binding ID
    - USB: serial: qcserial: add pid/vid for Sierra Wireless EM7355 fw update
    - USB: serial: garmin_gps: fix I/O after failed probe and remove
    - USB: serial: garmin_gps: fix memory leak on probe errors
    - x86/MCE/AMD: Always give panic severity for UC errors in kernel context
    - platform/x86: peaq-wmi: Add DMI check before binding to the WMI interface
    - platform/x86: peaq_wmi: Fix missing terminating entry for peaq_dmi_table
    - HID: cp2112: add HIDRAW dependency
    - HID: wacom: generic: Recognize WACOM_HID_WD_PEN as a type of pen collection
    - staging: wilc1000: Fix bssid buffer offset in Txq
    - staging: ccree: fix 64 bit scatter/gather DMA ops
    - staging: greybus: spilib: fix use-after-free after deregistration
    - staging: vboxvideo: Fix reporting invalid suggested-offset-properties
    - staging: rtl8188eu: Revert 4 commits breaking ARP
    - Linux 4.13.15

* time drifting on linux-hwe kernels (LP: #1744988)
    - x86/tsc: Future-proof native_calibrate_tsc()
    - x86/tsc: Fix erroneous TSC rate on Skylake Xeon
    - x86/tsc: Print tsc_khz, when it differs from cpu_khz

* Please backport vmd suspend/resume patches to 16.04 hwe (LP: #1745508)
    - PCI: vmd: Free up IRQs on suspend path

* CVE-2017-17448
    - netfilter: nfnetlink_cthelper: Add missing permission checks

* Dell XPS 13 9360 bluetooth (Atheros) won't connect after resume
    (LP: #1744712)
    - Bluetooth: btusb: Restore QCA Rome suspend/resume fix with a "rewritten"
      version

* [SRU] TrackPoint: middle button doesn't work on TrackPoint-compatible
    device. (LP: #1746002)
    - Input: trackpoint - force 3 buttons if 0 button is reported

* TB16 dock ethernet corrupts data with hw checksum silently failing
    (LP: #1729674)
    - r8152: disable RX aggregation on Dell TB16 dock

* [Artful] Realtek ALC225: 2 secs noise when a headset plugged in
    (LP: #1744058)
    - Revert "UBUNTU: SAUCE: ALSA: hda/realtek - Add support headset mode for DELL
      WYSE"
    - SAUCE: ALSA: hda/realtek - Add support headset mode for DELL WYSE
    - ALSA: hda/realtek - update ALC225 depop optimize

* [A] skb leak in vhost_net / tun / tap (LP: #1738975)
    - vhost: fix skb leak in handle_rx()
    - tap: free skb if flags error
    - tun: free skb in early errors

* Commit d9018976cdb6 missing in Kernels <4.14.x preventing lasting fix of
    Intel SPI bug on certain serial flash (LP: #1742696)
    - mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
    - spi-nor: intel-spi: Fix broken software sequencing codes

* CVE-2018-5332
    - RDS: Heap OOB write in rds_message_alloc_sgs()

* [A] KVM Windows BSOD on 4.13.x (LP: #1738972)
    - KVM: x86: fix APIC page invalidation

* elantech touchpad of Lenovo L480/580 failed to detect hw_version
    (LP: #1733605)
    - Input: elantech - add new icbody type 15

* [SRU] External HDMI monitor failed to show screen on Lenovo X1 series
    (LP: #1738523)
    - SAUCE: drm/i915: Disable writing of TMDS_OE on Lenovo ThinkPad X1 series

* ubuntu/xr-usb-serial didn't get built in zesty and artful (LP: #1733281)
    - SAUCE: make sure ubuntu/xr-usb-serial builds for x86

* Disabling zfs does not always disable module checks for the zfs modules
    (LP: #1737176)
    - [Packaging] disable zfs module checks when zfs is disabled

* CVE-2017-17806
    - crypto: hmac - require that the underlying hash algorithm is unkeyed

* CVE-2017-17805
    - crypto: salsa20 - fix blkcipher_walk API usage

* CVE-2017-16994
    - mm/pagewalk.c: report holes in hugetlb ranges

* CVE-2017-17450
    - netfilter: xt_osf: Add missing permission checks

* apparmor profile load in stacked policy container fails (LP: #1746463)
    - SAUCE: apparmor: fix display of .ns_name for containers

* CVE-2017-15129
    - net: Fix double free and memory corruption in get_net_ns_by_id()

* CVE-2018-5344
    - loop: fix concurrent lo_open/lo_release

* CVE-2017-1000407
    - KVM: VMX: remove I/O port 0x80 bypass on Intel hosts

* CVE-2017-0861
    - ALSA: pcm: prevent UAF in snd_pcm_info

* perf stat segfaults on uncore events w/o -a (LP: #1745246)
    - perf xyarray: Save max_x, max_y
    - perf evsel: Fix buffer overflow while freeing events

* Support cppc-cpufreq driver on ThunderX2 systems (LP: #1745007)
    - mailbox: PCC: Move the MAX_PCC_SUBSPACES definition to header file
    - ACPI / CPPC: Make CPPC ACPI driver aware of PCC subspace IDs
    - ACPI / CPPC: Fix KASAN global out of bounds warning
    - ACPI: CPPC: remove initial assignment of pcc_ss_data

* P-state not working in kernel 4.13 (LP: #1743269)
    - x86 / CPU: Avoid unnecessary IPIs in arch_freq_get_on_cpu()
    - x86 / CPU: Always show current CPU frequency in /proc/cpuinfo

* Regression: KVM no longer supports Intel CPUs without Virtual NMI
    (LP: #1741655)
    - kvm: vmx: Reinstate support for CPUs without virtual NMI

* System hang with Linux kernel due to mainline commit 24247aeeabe
    (LP: #1733662)
    - x86/intel_rdt/cqm: Prevent use after free

* $(LOCAL_ENV_CC) and $(LOCAL_ENV_DISTCC_HOSTS) should be properly quoted
    (LP: #1744077)
    - [Debian] pass LOCAL_ENV_CC and LOCAL_ENV_DISTCC_HOSTS properly

* the wifi driver is always hard blocked on a lenovo laptop (LP: #1743672)
    - ACPI: EC: Fix possible issues related to EC initialization order

* text VTs are unavailable on desktop after upgrade to Ubuntu 17.10
    (LP: #1724911)
    - drm/i915/fbdev: Always forward hotplug events

* Samsung SSD 960 EVO 500GB refused to change power state (LP: #1705748)
    - nvme-pci: disable APST on Samsung SSD 960 EVO + ASUS PRIME B350M-A

* [0cf3:e010] QCA6174A XR failed to pair with bt 4.0 device  (LP: #1741166)
    - Bluetooth: btusb: Add support for 0cf3:e010

* CVE-2017-17741
    - KVM: Fix stack-out-of-bounds read in write_mmio

* CVE-2018-5333
    - RDS: null pointer dereference in rds_atomic_free_op

* [800 G3 SFF] [800 G3 DM]External microphone of headset(3-ring) is working,
    2-ring mic not working, both not shown in sound settings  (LP: #1740974)
    - ALSA: hda - Add MIC_NO_PRESENCE fixup for 2 HP machines

* Two front mics can't work on a lenovo machine (LP: #1740973)
    - ALSA: hda - change the location for one mic on a Lenovo machine

* No external microphone be detected via headset jack on a dell machine
    (LP: #1740972)
    - ALSA: hda - fix headset mic detection issue on a Dell machine

*  Can't detect external headset via line-out jack on some Dell machines
    (LP: #1740971)
    - ALSA: hda/realtek - Fix Dell AIO LineOut issue

* Support realtek new codec alc257 in the alsa hda driver  (LP: #1738911)
    - ALSA: hda/realtek - New codec support for ALC257

* Add support for 16g huge pages on Ubuntu 16.04.2 PowerNV (LP: #1706247)
    - powerpc/mm/hugetlb: Allow runtime allocation of 16G.
    - powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel
      command line
    - mm/hugetlb: Allow arch to override and call the weak function

* the kernel is blackholing IPv6 packets to linkdown nexthops (LP: #1738219)
    - ipv6: Do not consider linkdown nexthops during multipath

* e1000e in 4.4.0-97-generic breaks 82574L under heavy load. (LP: #1730550)
    - e1000e: Avoid receiver overrun interrupt bursts
    - e1000e: Separate signaling for link check/link up

* Ubuntu 17.10: Include patch "crypto: vmx - Use skcipher for ctr fallback"
    (LP: #1732978)
    - crypto: vmx - Use skcipher for ctr fallback

* QCA Rome bluetooth can not wakeup after USB runtime suspended.
    (LP: #1737890)
    - Bluetooth: btusb: driver to enable the usb-wakeup feature

* /dev/bcache/by-uuid links not created after reboot (LP: #1729145)
    - SAUCE: (no-up) bcache: decouple emitting a cached_dev CHANGE uevent

* Some VMs fail to reboot with "watchdog: BUG: soft lockup - CPU#0 stuck for
    22s! [systemd:1]" (LP: #1730717)
    - SAUCE: exec: fix lockup because retry loop may never exit

* Request to backport cxlflash patches to 16.04 HWE Kernel (LP: #1730515)
    - scsi: cxlflash: Use derived maximum write same length
    - scsi: cxlflash: Allow cards without WWPN VPD to configure
    - scsi: cxlflash: Derive pid through accessors

* vagrant artful64 box filesystem too small (LP: #1726818)
    - block: factor out __blkdev_issue_zero_pages()
    - block: cope with WRITE ZEROES failing in blkdev_issue_zeroout()

* Artful update to 4.13.14 stable release (LP: #1744121)
    - ppp: fix race in ppp device destruction
    - gso: fix payload length when gso_size is zero
    - ipv4: Fix traffic triggered IPsec connections.
    - ipv6: Fix traffic triggered IPsec connections.
    - netlink: do not set cb_running if dump's start() errs
    - net: call cgroup_sk_alloc() earlier in sk_clone_lock()
    - macsec: fix memory leaks when skb_to_sgvec fails
    - l2tp: check ps->sock before running pppol2tp_session_ioctl()
    - netlink: fix netlink_ack() extack race
    - sctp: add the missing sock_owned_by_user check in sctp_icmp_redirect
    - tcp/dccp: fix ireq->opt races
    - packet: avoid panic in packet_getsockopt()
    - geneve: Fix function matching VNI and tunnel ID on big-endian
    - net: bridge: fix returning of vlan range op errors
    - soreuseport: fix initialization race
    - ipv6: flowlabel: do not leave opt->tot_len with garbage
    - sctp: full support for ipv6 ip_nonlocal_bind & IP_FREEBIND
    - tcp/dccp: fix lockdep splat in inet_csk_route_req()
    - tcp/dccp: fix other lockdep splats accessing ireq_opt
    - net: dsa: check master device before put
    - net/unix: don't show information about sockets from other namespaces
    - tap: double-free in error path in tap_open()
    - net/mlx5: Fix health work queue spin lock to IRQ safe
    - net/mlx5e: Properly deal with encap flows add/del under neigh update
    - ipip: only increase err_count for some certain type icmp in ipip_err
    - ip6_gre: only increase err_count for some certain type icmpv6 in ip6gre_err
    - ip6_gre: update dst pmtu if dev mtu has been updated by toobig in
      __gre6_xmit
    - tcp: refresh tp timestamp before tcp_mtu_probe()
    - tap: reference to KVA of an unloaded module causes kernel panic
    - sctp: reset owner sk for data chunks on out queues when migrating a sock
    - net_sched: avoid matching qdisc with zero handle
    - l2tp: hold tunnel in pppol2tp_connect()
    - ipv6: addrconf: increment ifp refcount before ipv6_del_addr()
    - tcp: fix tcp_mtu_probe() vs highest_sack
    - mac80211: accept key reinstall without changing anything
    - mac80211: use constant time comparison with keys
    - mac80211: don't compare TKIP TX MIC key in reinstall prevention
    - usb: usbtest: fix NULL pointer dereference
    - Input: ims-psu - check if CDC union descriptor is sane
    - EDAC, sb_edac: Don't create a second memory controller if HA1 is not present
    - dmaengine: dmatest: warn user when dma test times out
    - Linux 4.13.14

-- Stefan Bader <stefan.bader@canonical.com>  Wed, 14 Mar 2018 11:38:23 +0100

Changed in linux (Ubuntu Artful):
status:	Fix Committed → Fix Released

Revision history for this message

Po-Hsu Lin (cypressyew) wrote on 2019-10-03:

#13

Patch can be found in 4.15 Bionic as well.

Changed in linux (Ubuntu Bionic):
status:	Fix Committed → Fix Released
Changed in linux (Ubuntu):
status:	Fix Committed → Fix Released

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P-state not working in kernel 4.13

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