Bug #1672439 “No C-State Deeper than C3 utilized by Kaby Lake 78...” : Xenial (16.04) : Bugs : linux package : Ubuntu

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#1

AlsaInfo.txt Edit (37.9 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (392 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (69.8 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.3 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (19.8 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (14.0 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (342 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (9.0 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (103 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (5.2 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (7.2 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (21.0 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (113 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (195.3 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (100.9 KiB, text/plain; charset="utf-8")

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#2

cat /sys/module/intel_idle/parameters/max_cstate

~$ cat /sys/module/intel_idle/parameters/max_cstate
9

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Brad Figg (brad-figg) wrote on 2017-03-13: Status changed to Confirmed

#3

This change was made by a bot.

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

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#4

~$ sudo powertop (Idle Stats tab)

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#5

~$ sudo turbostat

cpu0: Guessing tjMax 100 C, Please CPU Avg_MHz - 0 4 1 5 2 6 3 7 CPU Avg_MHz - 0 4 1 5 2 6 3 7 use -T to specify
Busy% Bzy_MHz TSC_MHz
100 6.63 1500 2904
109 7.27 1500 2904
80 5.33 1501 2904
133 8.85 1498 2904
93 6.21 1501 2904
116 7.73 1500 2904
86 5.73 1500 2904
116 7.70 1500 2904
64 4.25 1500 2904
Busy% Bzy_MHz TSC_MHz
158 10.52 1501 2904
174 11.60 1501 2904
105 7.02 1502 2904
178 11.87 1499 2904
128 8.53 1501 2904
191 12.71 1501 2904
145 9.65 1500 2904
205 13.67 1501 2904
137 9.11 1502 2904

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#6

Installed:

intel-microcode_3.20161104.1~deb8u1~bpo7+1_amd6

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#7

~$ dmesg |grep idle

[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635855245 ns
[ 0.044934] process: using mwait in idle threads
[ 0.153005] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.162345] cpuidle: using governor ladder
[ 0.178334] cpuidle: using governor menu
[ 0.343661] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 0.899900] intel_idle: does not run on family 6 model 158
[ 0.901622] ACPI: acpi_idle registered with cpuidle
[ 1.894828] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x29dc020bb13, max_idle_ns: 440795273180 ns

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#8

Download full text (3.4 KiB)

~$ sudo i7z

sudo i7z
i7z DEBUG: i7z version: svn-r93-(27-MAY-2013)
i7z DEBUG: Found Intel Processor
i7z DEBUG: Stepping 9
i7z DEBUG: Model e
i7z DEBUG: Family 6
i7z DEBUG: Processor Type 0
i7z DEBUG: Extended Model 9
i7z DEBUG: msr = Model Specific Register
i7z DEBUG: Unknown processor, not exactly based on Nehalem, Sandy bridge or Ivy Bridge
i7z DEBUG: msr device files exist /dev/cpu/*/msr
i7z DEBUG: You have write permissions to msr device files

------------------------------
--[core id]--- Other information
-------------------------------------
--[0] Processor number 0
--[0] Socket number/Hyperthreaded Sibling number 0,4
--[0] Core id number 0
--[0] Display core in i7z Tool: Yes

--[1] Processor number 1
--[1] Socket number/Hyperthreaded Sibling number 0,5
--[1] Core id number 1
--[1] Display core in i7z Tool: Yes

--[2] Processor number 2
--[2] Socket number/Hyperthreaded Sibling number 0,6
--[2] Core id number 2
--[2] Display core in i7z Tool: Yes

--[3] Processor number 3
--[3] Socket number/Hyperthreaded Sibling number 0,7
--[3] Core id number 3
--[3] Display core in i7z Tool: Yes

--[4] Processor number 4
--[4] Socket number/Hyperthreaded Sibling number 0,0
--[4] Core id number 0
--[4] Display core in i7z Tool: No

--[5] Processor number 5
--[5] Socket number/Hyperthreaded Sibling number 0,1
--[5] Core id number 1
--[5] Display core in i7z Tool: No

--[6] Processor number 6
--[6] Socket number/Hyperthreaded Sibling number 0,2
--[6] Core id number 2
--[6] Display core in i7z Tool: No

--[7] Processor number 7
--[7] Socket number/Hyperthreaded Sibling number 0,3
--[7] Core id number 3
--[7] Display core in i7z Tool: No

Socket-0 [num of cpus 4 physical 4 logical 8] 0,1,2,3,
Socket-1 [num of cpus 0 physical 0 logical 0]
GUI has been Turned ON
i7z DEBUG: Single Socket Detected
i7z DEBUG: In i7z Single_Socket()
i7z DEBUG: guessing Nehalem

--------
AND THEN
--------

Cpu speed from cpuinfo 2903.00Mhz
cpuinfo might be wrong if cpufreq is enabled. To guess correctly try estimating via tsc
Linux's inbuilt cpu_khz code emulated now
True Frequency (without accounting Turbo) 2903 MHz
CPU Multiplier 29x || Bus clock frequency (BCLK) 100.10 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  Max Frequency without considering Turbo 3003.10 MHz (100.10 x [30])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is 39x/37x/36x/35x
  Real Current Frequency 1557.86 MHz [100.10 x 15.56] (Max of below)
        Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 % Temp VCore
        Core 1 [0]: 1516.07 (15.15x) 2.86 98.5 0 0 39 0.7573
        Core 2 [1]: 1557.86 (15.56x) 2.16 98.8 0 0 37 0.7573
        Core 3 [2]: 1533.17 (15.32x) 2.15 98.9 0 0 39 0.7550
        Core 4 [3]: 1554.47 (15.53x) 1.51 98.2 1 0 38 0.7552

C0 = Processor running without halting
C1 = Processor running with halts (States >C0 are power saver modes with cores idling)
C3 = Cores running with PLL turned off and core cache...

~$ sudo i7z

sudo i7z
i7z DEBUG: i7z version: svn-r93-(27-MAY-2013)
i7z DEBUG: Found Intel Processor
i7z DEBUG:    Stepping 9
i7z DEBUG:    Model e
i7z DEBUG:    Family 6
i7z DEBUG:    Processor Type 0
i7z DEBUG:    Extended Model 9
i7z DEBUG: msr = Model Specific Register
i7z DEBUG: Unknown processor, not exactly based on Nehalem, Sandy bridge or Ivy Bridge
i7z DEBUG: msr device files exist /dev/cpu/*/msr
i7z DEBUG: You have write permissions to msr device files

------------------------------
--[core id]--- Other information
-------------------------------------
--[0] Processor number 0
--[0] Socket number/Hyperthreaded Sibling number  0,4
--[0] Core id number 0
--[0] Display core in i7z Tool: Yes

--[1] Processor number 1
--[1] Socket number/Hyperthreaded Sibling number  0,5
--[1] Core id number 1
--[1] Display core in i7z Tool: Yes

--[2] Processor number 2
--[2] Socket number/Hyperthreaded Sibling number  0,6
--[2] Core id number 2
--[2] Display core in i7z Tool: Yes

--[3] Processor number 3
--[3] Socket number/Hyperthreaded Sibling number  0,7
--[3] Core id number 3
--[3] Display core in i7z Tool: Yes

--[4] Processor number 4
--[4] Socket number/Hyperthreaded Sibling number  0,0
--[4] Core id number 0
--[4] Display core in i7z Tool: No

--[5] Processor number 5
--[5] Socket number/Hyperthreaded Sibling number  0,1
--[5] Core id number 1
--[5] Display core in i7z Tool: No

--[6] Processor number 6
--[6] Socket number/Hyperthreaded Sibling number  0,2
--[6] Core id number 2
--[6] Display core in i7z Tool: No

--[7] Processor number 7
--[7] Socket number/Hyperthreaded Sibling number  0,3
--[7] Core id number 3
--[7] Display core in i7z Tool: No

Socket-0 [num of cpus 4 physical 4 logical 8] 0,1,2,3,
Socket-1 [num of cpus 0 physical 0 logical 0] 
GUI has been Turned ON
i7z DEBUG: Single Socket Detected
i7z DEBUG: In i7z Single_Socket()
i7z DEBUG: guessing Nehalem

--------
AND THEN
--------

Cpu speed from cpuinfo 2903.00Mhz
cpuinfo might be wrong if cpufreq is enabled. To guess correctly try estimating via tsc
Linux's inbuilt cpu_khz code emulated now
True Frequency (without accounting Turbo) 2903 MHz
  CPU Multiplier 29x || Bus clock frequency (BCLK) 100.10 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  Max Frequency without considering Turbo 3003.10 MHz (100.10 x [30])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is  39x/37x/36x/35x
  Real Current Frequency 1557.86 MHz [100.10 x 15.56] (Max of below)
        Core [core-id]  :Actual Freq (Mult.)      C0%   Halt(C1)%  C3 %   C6 %  Temp      VCore
        Core 1 [0]:       1516.07 (15.15x)      2.86    98.5       0       0    39      0.7573
        Core 2 [1]:       1557.86 (15.56x)      2.16    98.8       0       0    37      0.7573
        Core 3 [2]:       1533.17 (15.32x)      2.15    98.9       0       0    39      0.7550
        Core 4 [3]:       1554.47 (15.53x)      1.51    98.2       1       0    38      0.7552

C0 = Processor running without halting
C1 = Processor running with halts (States >C0 are power saver modes with cores idling)
C3 = Cores running with PLL turned off and core cache turned off
C6, C7 = Everything in C3 + core state saved to last level cache, C7 is deeper than C6
  Above values in table are in percentage over the last 1 sec
[core-id] refers to core-id number in /proc/cpuinfo
'Garbage Values' message printed when garbage values are read
  Ctrl+C to exit

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Carl Mueller (cmuell89) wrote on 2017-03-13:

#9

Let me know what other information I could supply.

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Joseph Salisbury (jsalisbury) wrote on 2017-03-13:

#10

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc2

Changed in linux (Ubuntu):
importance:	Undecided → Medium
Changed in linux (Ubuntu Xenial):
status:	New → Incomplete
importance:	Undecided → Medium
Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Kai-Heng Feng (kaihengfeng) wrote on 2017-03-14:

#11

I tested on an KBL laptop and it did have the issue. Backport a patch can make the machine idle to C10.

commit 3ce093d4de753d6c92cc09366e29d0618a62f542
Author: Len Brown <email address hidden>
Date: Wed Apr 6 17:00:59 2016 -0400

intel_idle: Add KBL support

KBL is similar to SKL

Signed-off-by: Len Brown <email address hidden>
Signed-off-by: Rafael J. Wysocki <email address hidden>

Please test the Xenial kernel: http://people.canonical.com/~khfeng/lp1672439/

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-14:

#12

@Kai-Heng Feng, What are the odds of this backport patch being included with the next update from Canonical for 16.04. Since your recommended kernel is 4.4.0-68 do you think it will arrive as part of the regular release schedule? I can report if the patch worked when it arrives. As much as I love to support the work on these bugs, jumping kernels has left sour taste in my mouth. Switching between two kernels has sometimes created issues (bluetooth drivers not loading etc,.) that carry over into the previously stable kernel.

Mostly this is my production/work machine and I am resistant to messing with it too much. :(

Sorry to sound like a poor sport.

C

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Kai-Heng Feng (kaihengfeng) wrote on 2017-03-14:

#13

No, that's why I built a slightly newer kernel, 4.4.0-68, so it won't mess with the current release kernel, 4.4.0-66.

It's okay if don't want to test it, I already tested it on Precision 5520 at my hand.

The problem lies here is, 5520 has several different configs, I want to make sure the patch works on your machine. Otherwise what's the point?

I assume the bluetooth symptom you saw mainly relates to the non-matching firmware is still in the chip, a cold boot instead of warm reboot should circumvent it.

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Carl Mueller (cmuell89) wrote on 2017-03-14:

#14

Okay. I'll try it out.

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Carl Mueller (cmuell89) wrote on 2017-03-14:

#15

Should I install all four .deb packages in the link you provided?

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Carl Mueller (cmuell89) wrote on 2017-03-14:

#16

Just an FYI, I do see this warning every time I've tried to build a kernel on my 5520. Not sure if this is an issue.

: Unable to find an initial ram disk that I know how to handle.
Will not try to make an initrd.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-14:

#17

Okay. Right away I notice a difference with the program i7z:

Cpu speed from cpuinfo 2875.00Mhz
cpuinfo might be wrong if cpufreq is enabled. To guess correctly try estimating via tsc
Linux's inbuilt cpu_khz code emulated now
True Frequency (without accounting Turbo) 2895 MHz
CPU Multiplier 29x || Bus clock frequency (BCLK) 99.83 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  Max Frequency without considering Turbo 2994.83 MHz (99.83 x [30])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is 39x/37x/36x/35x
  Real Current Frequency 2881.62 MHz [99.83 x 28.87] (Max of below)
        Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 % Temp VCore
        Core 1 [0]: 2865.41 (28.70x) 1.77 96.2 1 1 46 1.0009
        Core 2 [1]: 2874.93 (28.80x) 1.74 86.3 1 11 46 0.9927
        Core 3 [2]: 2881.62 (28.87x) 1.34 96.1 1 1.55 46 1.0076
        Core 4 [3]: 2877.37 (28.82x) 1.4 95 1 2.62 46 1.0226

C0 = Processor running without halting
C1 = Processor running with halts (States >C0 are power saver modes with cores idling)
C3 = Cores running with PLL turned off and core cache turned off
C6, C7 = Everything in C3 + core state saved to last level cache, C7 is deeper than C6
Above values in table are in percentage over the last 1 sec

WAY MORE activity in C6 state. Although I don't see any listings for C10

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Carl Mueller (cmuell89) wrote on 2017-03-14:

#18

sudo powertop (idel stats)

sudo powertop (idel stats)

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Carl Mueller (cmuell89) wrote on 2017-03-14:

#19

Download full text (3.5 KiB)

However, I notcied powertop is now not automatically choosing to adjust many of the bad parameters to good (not sure if that is related...). Most of the PCI devices are not set to Bad when previously they were automatically at Good.

Bad Enable SATA link power management for host0
   Bad Enable SATA link power management for host1
   Bad Enable Audio codec power management
   Bad Runtime PM for I2C Adapter i2c-2 (i915 gmbus dpd)
   Bad Autosuspend for USB device USB Receiver [Logitech]
   Bad Runtime PM for I2C Adapter i2c-1 (i915 gmbus dpb)
   Bad Autosuspend for USB device Touchscreen [ELAN]
   Bad Runtime PM for I2C Adapter i2c-0 (i915 gmbus dpc)
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad Runtime PM for PCI Device Realtek Semiconductor Co., Ltd. RTS525A PCI Express Ca
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H PMC
   Bad Runtime PM for PCI Device Intel Corporation Device a171
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H SMBus
   Bad Runtime PM for PCI Device NVIDIA Corporation Device 13b6
   Bad Runtime PM for PCI Device Intel Corporation Device 24fd
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H LPC Controller
   Bad Runtime PM for PCI Device Samsung Electronics Co Ltd Device a804
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H SATA controller [AHC
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H CSME HECI #1
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H LPSS I2C Controller
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H LPSS I2C Controller
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H Thermal subsystem
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H USB 3.0 xHCI Control
   Bad Runtime PM for PCI Device Intel Corporation Device 591b
   Bad Runtime PM for PCI Device Intel Corporation Sky Lake PCIe Controller (x16)
   Bad Runtime PM for PCI Device Intel Corporation Device 5910
   Bad Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad Runtime PM for PCI Device Intel Corporation Skylake Processor Thermal Subsystem
   Good Bluetooth device interface status
   Good NMI watchdog should be turned off
   Good VM writeback timeout
   Good Autosuspend for USB device xHCI Host Controller [usb1]
   Good Autosuspend for USB device xHCI Host Controller [usb2]
   Good I2C Device i2c-DLL07BF:01 has no runtime power management
   Good ...

However, I notcied powertop is now not automatically choosing to adjust many of the bad parameters to good (not sure if that is related...). Most of the PCI devices are not set to Bad when previously they were automatically at Good.

Bad           Enable SATA link power management for host0                                     
   Bad           Enable SATA link power management for host1
   Bad           Enable Audio codec power management
   Bad           Runtime PM for I2C Adapter i2c-2 (i915 gmbus dpd)
   Bad           Autosuspend for USB device USB Receiver [Logitech]
   Bad           Runtime PM for I2C Adapter i2c-1 (i915 gmbus dpb)
   Bad           Autosuspend for USB device Touchscreen [ELAN]
   Bad           Runtime PM for I2C Adapter i2c-0 (i915 gmbus dpc)
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad           Runtime PM for PCI Device Realtek Semiconductor Co., Ltd. RTS525A PCI Express Ca
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H PMC
   Bad           Runtime PM for PCI Device Intel Corporation Device a171
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H SMBus
   Bad           Runtime PM for PCI Device NVIDIA Corporation Device 13b6
   Bad           Runtime PM for PCI Device Intel Corporation Device 24fd
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H LPC Controller
   Bad           Runtime PM for PCI Device Samsung Electronics Co Ltd Device a804
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H SATA controller [AHC
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H CSME HECI #1
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H LPSS I2C Controller
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H LPSS I2C Controller
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H Thermal subsystem
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H USB 3.0 xHCI Control
   Bad           Runtime PM for PCI Device Intel Corporation Device 591b
   Bad           Runtime PM for PCI Device Intel Corporation Sky Lake PCIe Controller (x16)
   Bad           Runtime PM for PCI Device Intel Corporation Device 5910
   Bad           Runtime PM for PCI Device Intel Corporation Sunrise Point-H PCI Express Root Por
   Bad           Runtime PM for PCI Device Intel Corporation Skylake Processor Thermal Subsystem
   Good          Bluetooth device interface status
   Good          NMI watchdog should be turned off
   Good          VM writeback timeout
   Good          Autosuspend for USB device xHCI Host Controller [usb1]
   Good          Autosuspend for USB device xHCI Host Controller [usb2]
   Good          I2C Device i2c-DLL07BF:01 has no runtime power management
   Good          Autosuspend for USB device Integrated_Webcam_HD [CN045G28724876BOB496A01]
   Good          Autosuspend for unknown USB device 1-4 (8087:0a2b)
   Good          Runtime PM for I2C Adapter i2c-6 (Synopsys DesignWare I2C adapter)
   Good          Runtime PM for I2C Adapter i2c-7 (Synopsys DesignWare I2C adapter)
   Good          Wake-on-lan status for device wlp2s0

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-14:

#20

Also trying to run turbostat:

sudo turbostat --debug
WARNING: turbostat not found for kernel 4.4.0-68

  You may need to install the following packages for this specific kernel:
    linux-tools-4.4.0-68-generic
    linux-cloud-tools-4.4.0-68-generic

  You may also want to install one of the following packages to keep up to date:
    linux-tools-generic
    linux-cloud-tools-generic

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-14:

#21

Autotune with powertop works fine. No interference. Still showing heavy usage of C10 state when idling :) :)

I think this is a worthy path to incorporate for us 5520 users.

Revision history for this message

Kai-Heng Feng (kaihengfeng) wrote on 2017-03-15:

#22

Thanks for your test! I'll backport this patch to Ubuntu Xenial's kernel.

From the log, I think your machine is preloaded with Ubuntu, right? It should come with TLP installed. TLP only enables runtime PM when power cord is unplugged, those "bad" should become "good" once the laptop run on battery.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-15:

#23

Kai-Feng, you were right about Powertop. I am a big fan of presuming th worst. For some reason, my trackpad stopped tracking (I could click but no movement). However upon restart it seems to be fully restored and operational.

Kai-Heng Feng (kaihengfeng) on 2017-03-15

Changed in linux (Ubuntu Xenial):
status:	Incomplete → In Progress
assignee:	nobody → Kai-Heng Feng (kaihengfeng)

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-15:

#24

@Kai-Heng Feng, I am not sure if this patch was intended for 4.4.0-67 (which recently was updated via Software Updater) but that kernel version reverted my CPU behavior back to only using C3 states and nothing deeper. Just FYI.

Revision history for this message

Kai-Heng Feng (kaihengfeng) wrote on 2017-03-15:

#25

It should be included in version >= 4.4.0-68.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-15:

#26

Excuse my ignorance, but does that mean I should continue to use your 4.4.0-68 kernel and as Canonical releases kernel updates, I should naturally phase into the regular update stream again? Or should I revert to the newest updated (4.4.0-67) and remove your custom kernel?

Thanks!

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Kai-Heng Feng (kaihengfeng) wrote on 2017-03-16:

#27

You should remove the custom kernel and use the official Ubuntu kernel.

The deeper C state patch should be included soon.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-18:

#28

Kai-Heng Feng, I also noticed that by default the scaling driver used is acpi-cpufreq and not p-state. I've read that p-state is favorable for kernels >= 4.4. Is this something that is up to the user to decide or should this be considered an incorrect default?

analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.80 GHz
  available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.60 GHz, 2.40 GHz, 2.30 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
  available cpufreq governors: conservative, ondemand, userspace, powersave, performance
  current policy: frequency should be within 800 MHz and 2.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 900 MHz (asserted by call to hardware).
  cpufreq stats: 2.80 GHz:2.85%, 2.80 GHz:0.00%, 2.70 GHz:0.25%, 2.60 GHz:0.64%, 2.40 GHz:0.65%, 2.30 GHz:1.42%, 2.00 GHz:2.07%, 1.90 GHz:1.27%, 1.80 GHz:1.64%, 1.70 GHz:3.14%, 1.50 GHz:3.57%, 1.40 GHz:5.39%, 1.20 GHz:6.85%, 1.10 GHz:13.39%, 900 MHz:29.31%, 800 MHz:27.53% (2074191)
  boost state support:
    Supported: yes
    Active: yes

Revision history for this message

Kai-Heng Feng (kaihengfeng) wrote on 2017-03-20:

#29

You are right. Can you file another bug report?

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-20:

#30

Kai-Heng,

It has been filed:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674390

Brad Figg (brad-figg) on 2017-03-23

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

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-27:

#31

Fix not showing up in 4.4.0-70. Not sure if it was intended for this release.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-03-30:

#32

Fix not showing in 4.4.0-71 either. Just FYI in case it was intended.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-04-05:

#33

Download full text (3.4 KiB)

@Kai-Heng Feng, the fix is not showing up in 4.4.0-72

carl@carl-5520:~$ uname -a
Linux carl-5520 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

carl@carl-5520:~$ sudo powertop

carl@carl-5520:~$ sudo i7z

Cpu speed from cpuinfo 2902.00Mhz
cpuinfo might be wrong if cpufreq is enabled. To guess correctly try estimating via tsc
Linux's inbuilt cpu_khz code emulated now
True Frequency (without accounting Turbo) 2902 MHz
CPU Multiplier 29x || Bus clock frequency (BCLK) 100.07 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  Max Frequency without considering Turbo 3002.07 MHz (100.07 x [30])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is 39x/37x/36x/35x
  Real Current Frequency 1395.28 MHz [100.07 x 13.94] (Max of below)
        Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 % Temp VCore
        Core 1 [0]: 1351.45 (13.51x) 5.21 97.6 0 0 44 0.8995
        Core 2 [1]: 1395.28 (13.94x) 1.37 99.3 0 0 43 0.8981
        Core 3 [2]: 1310.44 (13.10x) 2.49 98.9 0 0 44 0.8981
        Core 4 [3]: 1328.40 (13.27x) 1 99.6 0 0 44 0.8954

C0 = Processor running without halting
C1 = Processor running with halts (States >C0 are power saver modes with cores idling)
C3 = Cores running with PLL turned off an...

@Kai-Heng Feng, the fix is not showing up in 4.4.0-72

carl@carl-5520:~$ uname -a
Linux carl-5520 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

carl@carl-5520:~$ sudo powertop

carl@carl-5520:~$ sudo i7z

Cpu speed from cpuinfo 2902.00Mhz
cpuinfo might be wrong if cpufreq is enabled. To guess correctly try estimating via tsc
Linux's inbuilt cpu_khz code emulated now
True Frequency (without accounting Turbo) 2902 MHz
  CPU Multiplier 29x || Bus clock frequency (BCLK) 100.07 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  Max Frequency without considering Turbo 3002.07 MHz (100.07 x [30])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is  39x/37x/36x/35x
  Real Current Frequency 1395.28 MHz [100.07 x 13.94] (Max of below)
        Core [core-id]  :Actual Freq (Mult.)      C0%   Halt(C1)%  C3 %   C6 %  Temp      VCore
        Core 1 [0]:       1351.45 (13.51x)      5.21    97.6       0       0    44      0.8995
        Core 2 [1]:       1395.28 (13.94x)      1.37    99.3       0       0    43      0.8981
        Core 3 [2]:       1310.44 (13.10x)      2.49    98.9       0       0    44      0.8981
        Core 4 [3]:       1328.40 (13.27x)         1    99.6       0       0    44      0.8954

C0 = Processor running without halting
C1 = Processor running with halts (States >C0 are power saver modes with cores idling)
C3 = Cores running with PLL turned off and core cache turned off
C6, C7 = Everything in C3 + core state saved to last level cache, C7 is deeper than C6
  Above values in table are in percentage over the last 1 sec
[core-id] refers to core-id number in /proc/cpuinfo
'Garbage Values' message printed when garbage values are read
  Ctrl+C to exit

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-04-05:

#34

Sorry to be so persistent but Intel has posted a warning about not using lower power states. See page 64 of this data sheet:

http://www.intel.com/content/www/us/en/processors/core/6th-gen-core-family-mobile-u-y-processor-lines-datasheet-vol-1.html

Revision history for this message

Kai-Heng Feng (kaihengfeng) wrote on 2017-04-11:

#35

It's ok ;)

The new kernel in xenial-proposed should fix this issue.

Revision history for this message

Kleber Sacilotto de Souza (kleber-souza) wrote on 2017-04-13:

#36

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

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-xenial

Kai-Heng Feng (kaihengfeng) on 2017-04-14

tags:

added: verification-done-xenial
removed: verification-needed-xenial

Revision history for this message

Launchpad Janitor (janitor) wrote on 2017-04-24:

#37

Download full text (29.1 KiB)

This bug was fixed in the package linux - 4.4.0-75.96

---------------
linux (4.4.0-75.96) xenial; urgency=low

* linux: 4.4.0-75.96 -proposed tracker (LP: #1684441)

  * [Hyper-V] hv: util: move waiting for release to hv_utils_transport itself
    (LP: #1682561)
    - Drivers: hv: util: move waiting for release to hv_utils_transport itself

linux (4.4.0-74.95) xenial; urgency=low

* linux: 4.4.0-74.95 -proposed tracker (LP: #1682041)

  * [Hyper-V] hv: vmbus: Raise retry/wait limits in vmbus_post_msg()
    (LP: #1681893)
    - Drivers: hv: vmbus: Raise retry/wait limits in vmbus_post_msg()

linux (4.4.0-73.94) xenial; urgency=low

* linux: 4.4.0-73.94 -proposed tracker (LP: #1680416)

* CVE-2017-6353
- sctp: deny peeloff operation on asocs with threads sleeping on it

* vfat: missing iso8859-1 charset (LP: #1677230)
- [Config] NLS_ISO8859_1=y

* Regression: KVM modules should be on main kernel package (LP: #1678099)
- [Config] powerpc: Add kvm-hv and kvm-pr to the generic inclusion list

  * linux-lts-xenial 4.4.0-63.84~14.04.2 ADT test failure with linux-lts-xenial
    4.4.0-63.84~14.04.2 (LP: #1664912)
    - SAUCE: apparmor: fix link auditing failure due to, uninitialized var

* regession tests failing after stackprofile test is run (LP: #1661030)
- SAUCE: fix regression with domain change in complain mode

  * Permission denied and inconsistent behavior in complain mode with 'ip netns
    list' command (LP: #1648903)
    - SAUCE: fix regression with domain change in complain mode

  * unexpected errno=13 and disconnected path when trying to open /proc/1/ns/mnt
    from a unshared mount namespace (LP: #1656121)
    - SAUCE: apparmor: null profiles should inherit parent control flags

  * apparmor refcount leak of profile namespace when removing profiles
    (LP: #1660849)
    - SAUCE: apparmor: fix ns ref count link when removing profiles from policy

  * tor in lxd: apparmor="DENIED" operation="change_onexec"
    namespace="root//CONTAINERNAME_<var-lib-lxd>" profile="unconfined"
    name="system_tor" (LP: #1648143)
    - SAUCE: apparmor: Fix no_new_privs blocking change_onexec when using stacked
      namespaces

* apparmor oops in bind_mnt when dev_path lookup fails (LP: #1660840)
- SAUCE: apparmor: fix oops in bind_mnt when dev_path lookup fails

  * apparmor auditing denied access of special apparmor .null fi\ le
    (LP: #1660836)
    - SAUCE: apparmor: Don't audit denied access of special apparmor .null file

* apparmor label leak when new label is unused (LP: #1660834)
- SAUCE: apparmor: fix label leak when new label is unused

* apparmor reference count bug in label_merge_insert() (LP: #1660833)
- SAUCE: apparmor: fix reference count bug in label_merge_insert()

* apparmor's raw_data file in securityfs is sometimes truncated (LP: #1638996)
- SAUCE: apparmor: fix replacement race in reading rawdata

  * unix domain socket cross permission check failing with nested namespaces
    (LP: #1660832)
    - SAUCE: apparmor: fix cross ns perm of unix domain sockets

  * Xenial update to v4.4.59 stable release (LP: #1678960)
    - xfrm: policy: init locks early
    - virtio_balloon: init ...

This bug was fixed in the package linux - 4.4.0-75.96

---------------
linux (4.4.0-75.96) xenial; urgency=low

* linux: 4.4.0-75.96 -proposed tracker (LP: #1684441)

* [Hyper-V] hv: util: move waiting for release to hv_utils_transport itself
    (LP: #1682561)
    - Drivers: hv: util: move waiting for release to hv_utils_transport itself

linux (4.4.0-74.95) xenial; urgency=low

* linux: 4.4.0-74.95 -proposed tracker (LP: #1682041)

* [Hyper-V] hv: vmbus: Raise retry/wait limits in vmbus_post_msg()
    (LP: #1681893)
    - Drivers: hv: vmbus: Raise retry/wait limits in vmbus_post_msg()

linux (4.4.0-73.94) xenial; urgency=low

* linux: 4.4.0-73.94 -proposed tracker (LP: #1680416)

* CVE-2017-6353
    - sctp: deny peeloff operation on asocs with threads sleeping on it

* vfat: missing iso8859-1 charset (LP: #1677230)
    - [Config] NLS_ISO8859_1=y

* Regression: KVM modules should be on main kernel package (LP: #1678099)
    - [Config] powerpc: Add kvm-hv and kvm-pr to the generic inclusion list

* linux-lts-xenial 4.4.0-63.84~14.04.2 ADT test failure with linux-lts-xenial
    4.4.0-63.84~14.04.2 (LP: #1664912)
    - SAUCE: apparmor: fix link auditing failure due to, uninitialized var

* regession tests failing after stackprofile test is run (LP: #1661030)
    - SAUCE: fix regression with domain change in complain mode

* Permission denied and inconsistent behavior in complain mode with 'ip netns
    list' command (LP: #1648903)
    - SAUCE: fix regression with domain change in complain mode

* unexpected errno=13 and disconnected path when trying to open /proc/1/ns/mnt
    from a unshared mount namespace (LP: #1656121)
    - SAUCE: apparmor: null profiles should inherit parent control flags

* apparmor refcount leak of profile namespace when removing profiles
    (LP: #1660849)
    - SAUCE: apparmor: fix ns ref count link when removing profiles from policy

* tor in lxd: apparmor="DENIED" operation="change_onexec"
    namespace="root//CONTAINERNAME_<var-lib-lxd>" profile="unconfined"
    name="system_tor" (LP: #1648143)
    - SAUCE: apparmor: Fix no_new_privs blocking change_onexec when using stacked
      namespaces

* apparmor oops in bind_mnt when dev_path lookup fails (LP: #1660840)
    - SAUCE: apparmor: fix oops in bind_mnt when dev_path lookup fails

* apparmor  auditing denied access of special apparmor .null fi\ le
    (LP: #1660836)
    - SAUCE: apparmor: Don't audit denied access of special apparmor .null file

* apparmor label leak when new label is unused (LP: #1660834)
    - SAUCE: apparmor: fix label leak when new label is unused

* apparmor reference count bug in label_merge_insert() (LP: #1660833)
    - SAUCE: apparmor: fix reference count bug in label_merge_insert()

* apparmor's raw_data file in securityfs is sometimes truncated (LP: #1638996)
    - SAUCE: apparmor: fix replacement race in reading rawdata

* unix domain socket cross permission check failing with nested namespaces
    (LP: #1660832)
    - SAUCE: apparmor: fix cross ns perm of unix domain sockets

* Xenial update to v4.4.59 stable release (LP: #1678960)
    - xfrm: policy: init locks early
    - virtio_balloon: init 1st buffer in stats vq
    - pinctrl: qcom: Don't clear status bit on irq_unmask
    - c6x/ptrace: Remove useless PTRACE_SETREGSET implementation
    - h8300/ptrace: Fix incorrect register transfer count
    - mips/ptrace: Preserve previous registers for short regset write
    - sparc/ptrace: Preserve previous registers for short regset write
    - metag/ptrace: Preserve previous registers for short regset write
    - metag/ptrace: Provide default TXSTATUS for short NT_PRSTATUS
    - metag/ptrace: Reject partial NT_METAG_RPIPE writes
    - fscrypt: remove broken support for detecting keyring key revocation
    - sched/rt: Add a missing rescheduling point
    - Linux 4.4.59

* Update ENA driver to 1.1.2 from net-next (LP: #1664312)
    - net: ena: Remove unnecessary pci_set_drvdata()
    - net: ena: Fix error return code in ena_device_init()
    - net: ena: change the return type of ena_set_push_mode() to be void.
    - net: ena: use setup_timer() and mod_timer()
    - net/ena: remove ntuple filter support from device feature list
    - net/ena: fix queues number calculation
    - net/ena: fix ethtool RSS flow configuration
    - net/ena: fix RSS default hash configuration
    - net/ena: fix NULL dereference when removing the driver after device reset
      failed
    - net/ena: refactor ena_get_stats64 to be atomic context safe
    - net/ena: fix potential access to freed memory during device reset
    - net/ena: use READ_ONCE to access completion descriptors
    - net/ena: reduce the severity of ena printouts
    - net/ena: change driver's default timeouts
    - net/ena: change condition for host attribute configuration
    - net/ena: update driver version to 1.1.2

* Xenial update to v4.4.58 stable release (LP: #1677600)
    - net/openvswitch: Set the ipv6 source tunnel key address attribute correctly
    - net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled
    - net: properly release sk_frag.page
    - amd-xgbe: Fix jumbo MTU processing on newer hardware
    - net: unix: properly re-increment inflight counter of GC discarded candidates
    - net/mlx5: Increase number of max QPs in default profile
    - net/mlx5e: Count LRO packets correctly
    - net: bcmgenet: remove bcmgenet_internal_phy_setup()
    - ipv4: provide stronger user input validation in nl_fib_input()
    - socket, bpf: fix sk_filter use after free in sk_clone_lock
    - tcp: initialize icsk_ack.lrcvtime at session start time
    - Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
    - Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
    - Input: iforce - validate number of endpoints before using them
    - Input: ims-pcu - validate number of endpoints before using them
    - Input: hanwang - validate number of endpoints before using them
    - Input: yealink - validate number of endpoints before using them
    - Input: cm109 - validate number of endpoints before using them
    - Input: kbtab - validate number of endpoints before using them
    - Input: sur40 - validate number of endpoints before using them
    - ALSA: seq: Fix racy cell insertions during snd_seq_pool_done()
    - ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call
    - ALSA: hda - Adding a group of pin definition to fix headset problem
    - USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
    - USB: serial: qcserial: add Dell DW5811e
    - ACM gadget: fix endianness in notifications
    - usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
    - usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
    - USB: uss720: fix NULL-deref at probe
    - USB: lvtest: fix NULL-deref at probe
    - USB: idmouse: fix NULL-deref at probe
    - USB: wusbcore: fix NULL-deref at probe
    - usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
    - usb: hub: Fix crash after failure to read BOS descriptor
    - uwb: i1480-dfu: fix NULL-deref at probe
    - uwb: hwa-rc: fix NULL-deref at probe
    - mmc: ushc: fix NULL-deref at probe
    - iio: adc: ti_am335x_adc: fix fifo overrun recovery
    - iio: hid-sensor-trigger: Change get poll value function order to avoid
      sensor properties losing after resume from S3
    - parport: fix attempt to write duplicate procfiles
    - ext4: mark inode dirty after converting inline directory
    - mmc: sdhci: Do not disable interrupts while waiting for clock
    - xen/acpi: upload PM state from init-domain to Xen
    - iommu/vt-d: Fix NULL pointer dereference in device_to_iommu
    - ARM: at91: pm: cpu_idle: switch DDR to power-down mode
    - ARM: dts: at91: sama5d2: add dma properties to UART nodes
    - cpufreq: Restore policy min/max limits on CPU online
    - raid10: increment write counter after bio is split
    - libceph: don't set weight to IN when OSD is destroyed
    - xfs: don't allow di_size with high bit set
    - xfs: fix up xfs_swap_extent_forks inline extent handling
    - nl80211: fix dumpit error path RTNL deadlocks
    - USB: usbtmc: add missing endpoint sanity check
    - xfs: clear _XBF_PAGES from buffers when readahead page
    - igb: add i211 to i210 PHY workaround
    - vfio/spapr: Postpone allocation of userspace version of TCE table
    - block: allow WRITE_SAME commands with the SG_IO ioctl
    - fbcon: Fix vc attr at deinit
    - crypto: algif_hash - avoid zero-sized array
    - Linux 4.4.58

* PS/2 mouse does not work on Dell embedded computer (LP: #1591053)
    - Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000

* Xenial update to v4.4.57 stable release (LP: #1676424)
    - give up on gcc ilog2() constant optimizations
    - perf/core: Fix event inheritance on fork()
    - cpufreq: Fix and clean up show_cpuinfo_cur_freq()
    - powerpc/boot: Fix zImage TOC alignment
    - md/raid1/10: fix potential deadlock
    - target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export
    - scsi: lpfc: Add shutdown method for kexec
    - scsi: libiscsi: add lock around task lists to fix list corruption regression
    - target: Fix VERIFY_16 handling in sbc_parse_cdb
    - isdn/gigaset: fix NULL-deref at probe
    - gfs2: Avoid alignment hole in struct lm_lockname
    - percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
    - ext4: fix fencepost in s_first_meta_bg validation
    - Linux 4.4.57

* Xenial update to v4.4.56 stable release (LP: #1675789)
    - netlink: remove mmapped netlink support
    - [Config] CONFIG_NETLINK_MMAP disappeared
    - vxlan: correctly validate VXLAN ID against VXLAN_N_VID
    - vti6: return GRE_KEY for vti6
    - ipv4: mask tos for input route
    - l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
    - net: don't call strlen() on the user buffer in packet_bind_spkt()
    - net: net_enable_timestamp() can be called from irq contexts
    - dccp: Unlock sock before calling sk_free()
    - tcp: fix various issues for sockets morphing to listen state
    - net: fix socket refcounting in skb_complete_wifi_ack()
    - net: fix socket refcounting in skb_complete_tx_timestamp()
    - dccp: fix use-after-free in dccp_feat_activate_values
    - vrf: Fix use-after-free in vrf_xmit
    - uapi: fix linux/packet_diag.h userspace compilation error
    - act_connmark: avoid crashing on malformed nlattrs with null parms
    - mpls: Send route delete notifications when router module is unloaded
    - ipv6: make ECMP route replacement less greedy
    - ipv6: avoid write to a possibly cloned skb
    - dccp/tcp: fix routing redirect race
    - dccp: fix memory leak during tear-down of unsuccessful connection request
    - net sched actions: decrement module reference count after table flush.
    - fscrypt: fix renaming and linking special files
    - fscrypto: lock inode while setting encryption policy
    - x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y
    - x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm
    - futex: Fix potential use-after-free in FUTEX_REQUEUE_PI
    - futex: Add missing error handling to FUTEX_REQUEUE_PI
    - Linux 4.4.56

* Kernel linux-image-4.4.0-67-generic prevent the boot on Microsoft Hyper-v
    2012r2 Gen2 VM (LP: #1674635)
    - scsi: storvsc: Workaround for virtual DVD SCSI version

* [Hyper-V][Mellanox] net/mlx4_core: Avoid delays during VF driver device
    shutdown (LP: #1672785)
    - net/mlx4_core: Avoid delays during VF driver device shutdown

* Channel data values for IIO based st_sensors (st_accel, st_pressure) are
    incorrect (LP: #1676356)
    - iio: core: added support for IIO_VAL_INT
    - iio: st_sensors: simplify buffer address handling
    - iio: st_sensors: read each channel individually
    - iio:st_sensors: emulate SMBus block read if needed
    - iio:st_sensors: align on storagebits boundaries
    - iio:st_pressure: temperature triggered buffering
    - iio:st_pressure: clean useless static channel initializers
    - iio: st_pressure: Fix data sign

* Enable lspcon on i915 (LP: #1676747)
    - drm: Helper for lspcon in drm_dp_dual_mode
    - drm/i915: Add lspcon support for I915 driver
    - drm/i915: Parse VBT data for lspcon
    - drm/i915: Enable lspcon initialization
    - drm/i915: Add lspcon resume function

* stress_smoke_test passing and exiting rc=9 (linux 4.9.0-12.13 ADT test
    failure with linux 4.9.0-12.13) (LP: #1658633)
    - ext4: lock the xattr block before checksuming it

* Fix line-out port noise on Baytrail-I with RT5660 based sound card
    (LP: #1675327)
    - SAUCE: (no-up): ASoC: Intel: bytcr-rt5660: Fix noise in line-out

* Kernel 4.4.0-67 Defaults to ACPI-cpufreq rather than P-State - Dell
    Precision 5520  (LP: #1674390)
    - cpufreq: intel_pstate: Enable HWP by default

* ip_rcv_finish() NULL pointer kernel panic (LP: #1672470)
    - bridge: drop netfilter fake rtable unconditionally

* dm-queue-length module is not included in installer/initramfs (LP: #1673350)
    - d-i: Also add dm-queue-length to multipath modules

* Broadcom bluetooth modules sometimes fail to initialize (LP: #1483101)
    - Bluetooth: btbcm: Add a delay for module reset

* Need support of Broadcom bluetooth device [413c:8143] (LP: #1166113)
    - Bluetooth: btusb: Add support for 413c:8143

* i40e Intel X710 error during device probe prevents link set up and ip
    association (LP: #1672550)
    - i40e: check for and deal with non-contiguous TCs

* CIFS: Call echo service immediately after socket reconnect (LP: #1669941)
    - Call echo service immediately after socket reconnect

* FC Adapter (LPe32000-based) prints "iotag out of range", goes offline, and
    delays boot a lot (Ubuntu17.04/Emulex/lpfc)) (LP: #1670490)
    - scsi: lpfc: Add missing memory barrier

* No C-State Deeper than C3 utilized by Kaby Lake 7820HQ in Precision 5520
    (LP: #1672439)
    - intel_idle: Add KBL support

* [Hyper-V] Missing PCI patches breaking SR-IOV hot remove (LP: #1670518)
    - PCI: hv: Fix hv_pci_remove() for hot-remove
    - PCI: hv: Delete the device earlier from hbus->children for hot-remove
    - PCI: hv: Make unnecessarily global IRQ masking functions static
    - PCI: hv: Allocate physically contiguous hypercall params buffer

* Xenial update to v4.4.55 stable release (LP: #1674292)
    - USB: serial: digi_acceleport: fix OOB data sanity check
    - USB: serial: digi_acceleport: fix OOB-event processing
    - crypto: improve gcc optimization flags for serpent and wp512
    - MIPS: Update defconfigs for NF_CT_PROTO_DCCP/UDPLITE change
    - MIPS: ip27: Disable qlge driver in defconfig
    - MIPS: Update ip27_defconfig for SCSI_DH change
    - MIPS: ip22: Fix ip28 build for modern gcc
    - MIPS: Update lemote2f_defconfig for CPU_FREQ_STAT change
    - mtd: pmcmsp: use kstrndup instead of kmalloc+strncpy
    - MIPS: ralink: Cosmetic change to prom_init().
    - MIPS: ralink: Remove unused rt*_wdt_reset functions
    - cpmac: remove hopeless #warning
    - mm: memcontrol: avoid unused function warning
    - MIPS: DEC: Avoid la pseudo-instruction in delay slots
    - MIPS: Netlogic: Fix CP0_EBASE redefinition warnings
    - tracing: Add #undef to fix compile error
    - powerpc: Emulation support for load/store instructions on LE
    - usb: gadget: dummy_hcd: clear usb_gadget region before registration
    - usb: dwc3: gadget: make Set Endpoint Configuration macros safe
    - usb: gadget: function: f_fs: pass companion descriptor along
    - usb: host: xhci-dbg: HCIVERSION should be a binary number
    - usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci
      controllers
    - USB: serial: safe_serial: fix information leak in completion handler
    - USB: serial: omninet: fix reference leaks at open
    - USB: iowarrior: fix NULL-deref at probe
    - USB: iowarrior: fix NULL-deref in write
    - USB: serial: io_ti: fix NULL-deref in interrupt callback
    - USB: serial: io_ti: fix information leak in completion handler
    - serial: samsung: Continue to work if DMA request fails
    - mvsas: fix misleading indentation
    - KVM: s390: Fix guest migration for huge guests resulting in panic
    - s390/kdump: Use "LINUX" ELF note name instead of "CORE"
    - nfit, libnvdimm: fix interleave set cookie calculation
    - dm: flush queued bios when process blocks to avoid deadlock
    - ext4: don't BUG when truncating encrypted inodes on the orphan list
    - Linux 4.4.55

* Xenial update to v4.4.54 stable release (LP: #1673541)
    - serial: 8250_pci: Add MKS Tenta SCOM-0800 and SCOM-0801 cards
    - KVM: s390: Disable dirty log retrieval for UCONTROL guests
    - KVM: VMX: use correct vmcs_read/write for guest segment selector/base
    - Bluetooth: Add another AR3012 04ca:3018 device
    - s390/qdio: clear DSCI prior to scanning multiple input queues
    - s390/dcssblk: fix device size calculation in dcssblk_direct_access()
    - s390: TASK_SIZE for kernel threads
    - s390: make setup_randomness work
    - s390: use correct input data address for setup_randomness
    - net: mvpp2: fix DMA address calculation in mvpp2_txq_inc_put()
    - mnt: Tuck mounts under others instead of creating shadow/side mounts.
    - IB/ipoib: Fix deadlock between rmmod and set_mode
    - IB/IPoIB: Add destination address when re-queue packet
    - IB/srp: Avoid that duplicate responses trigger a kernel bug
    - IB/srp: Fix race conditions related to task management
    - ktest: Fix child exit code processing
    - ceph: remove req from unsafe list when unregistering it
    - target: Fix NULL dereference during LUN lookup + active I/O shutdown
    - nlm: Ensure callback code also checks that the files match
    - pwm: pca9685: Fix period change with same duty cycle
    - xtensa: move parse_tag_fdt out of #ifdef CONFIG_BLK_DEV_INITRD
    - mac80211: flush delayed work when entering suspend
    - drm/amdgpu: add more cases to DCE11 possible crtc mask setup
    - drm/ast: Fix test for VGA enabled
    - drm/ast: Call open_key before enable_mmio in POST code
    - drm/ast: Fix AST2400 POST failure without BMC FW or VBIOS
    - drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
    - drm/ttm: Make sure BOs being swapped out are cacheable
    - drm/atomic: fix an error code in mode_fixup()
    - fakelb: fix schedule while atomic
    - drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from
      vlv_init_display_clock_gating
    - libceph: use BUG() instead of BUG_ON(1)
    - fat: fix using uninitialized fields of fat_inode/fsinfo_inode
    - drivers: hv: Turn off write permission on the hypercall page
    - Linux 4.4.54

* Xenial update to v4.4.53 stable release (LP: #1673538)
    - samples: move mic/mpssd example code from Documentation
    - MIPS: Fix special case in 64 bit IP checksumming.
    - MIPS: BCM47XX: Fix button inversion for Asus WL-500W
    - MIPS: OCTEON: Fix copy_from_user fault handling for large buffers
    - MIPS: Lantiq: Keep ethernet enabled during boot
    - MIPS: Clear ISA bit correctly in get_frame_info()
    - MIPS: Prevent unaligned accesses during stack unwinding
    - MIPS: Fix get_frame_info() handling of microMIPS function size
    - MIPS: Fix is_jump_ins() handling of 16b microMIPS instructions
    - MIPS: Calculate microMIPS ra properly when unwinding the stack
    - MIPS: Handle microMIPS jumps in the same way as MIPS32/MIPS64 jumps
    - am437x-vpfe: always assign bpp variable
    - uvcvideo: Fix a wrong macro
    - media: fix dm1105.c build error
    - ARM: at91: define LPDDR types
    - ARM: dts: at91: Enable DMA on sama5d4_xplained console
    - ARM: dts: at91: Enable DMA on sama5d2_xplained console
    - ALSA: hda/realtek - Cannot adjust speaker's volume on a Dell AIO
    - ALSA: hda - fix Lewisburg audio issue
    - ALSA: timer: Reject user params with too small ticks
    - ALSA: ctxfi: Fallback DMA mask to 32bit
    - ALSA: seq: Fix link corruption by event error handling
    - ALSA: hda - Add subwoofer support for Dell Inspiron 17 7000 Gaming
    - ALSA: hda - Fix micmute hotkey problem for a lenovo AIO machine
    - staging: rtl: fix possible NULL pointer dereference
    - regulator: Fix regulator_summary for deviceless consumers
    - iommu/vt-d: Fix some macros that are incorrectly specified in intel-iommu
    - iommu/vt-d: Tylersburg isoch identity map check is done too late.
    - mm/page_alloc: fix nodes for reclaim in fast path
    - mm: vmpressure: fix sending wrong events on underflow
    - mm: do not access page->mapping directly on page_endio
    - ipc/shm: Fix shmat mmap nil-page protection
    - dm cache: fix corruption seen when using cache > 2TB
    - dm stats: fix a leaked s->histogram_boundaries array
    - Revert "scsi: storvsc: properly set residual data length on errors"
    - scsi: storvsc: properly set residual data length on errors
    - scsi: aacraid: Reorder Adapter status check
    - scsi: use 'scsi_device_from_queue()' for scsi_dh
    - sd: get disk reference in sd_check_events()
    - Fix: Disable sys_membarrier when nohz_full is enabled
    - jbd2: don't leak modified metadata buffers on an aborted journal
    - block/loop: fix race between I/O and set_status
    - loop: fix LO_FLAGS_PARTSCAN hang
    - ext4: Include forgotten start block on fallocate insert range
    - ext4: do not polute the extents cache while shifting extents
    - ext4: trim allocation requests to group size
    - ext4: fix data corruption in data=journal mode
    - ext4: fix inline data error paths
    - ext4: preserve the needs_recovery flag when the journal is aborted
    - ext4: return EROFS if device is r/o and journal replay is needed
    - samples/seccomp: fix 64-bit comparison macros
    - target: Obtain se_node_acl->acl_kref during get_initiator_node_acl
    - target: Fix multi-session dynamic se_node_acl double free OOPs
    - ath5k: drop bogus warning on drv_set_key with unsupported cipher
    - ath9k: fix race condition in enabling/disabling IRQs
    - ath9k: use correct OTP register offsets for the AR9340 and AR9550
    - crypto: testmgr - Pad aes_ccm_enc_tv_template vector
    - fuse: add missing FR_FORCE
    - arm/arm64: KVM: Enforce unconditional flush to PoC when mapping to stage-2
    - iio: pressure: mpl115: do not rely on structure field ordering
    - iio: pressure: mpl3115: do not rely on structure field ordering
    - can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
    - w1: don't leak refcount on slave attach failure in w1_attach_slave_device()
    - w1: ds2490: USB transfer buffers need to be DMAable
    - usb: musb: da8xx: Remove CPPI 3.0 quirk and methods
    - usb: host: xhci: plat: check hcc_params after add hcd
    - usb: gadget: udc: fsl: Add missing complete function.
    - hv: allocate synic pages for all present CPUs
    - hv: init percpu_list in hv_synic_alloc()
    - Drivers: hv: util: kvp: Fix a rescind processing issue
    - Drivers: hv: util: Fcopy: Fix a rescind processing issue
    - Drivers: hv: util: Backup: Fix a rescind processing issue
    - RDMA/core: Fix incorrect structure packing for booleans
    - rdma_cm: fail iwarp accepts w/o connection params
    - gfs2: Add missing rcu locking for glock lookup
    - rtlwifi: Fix alignment issues
    - rtlwifi: rtl8192c-common: Fix "BUG: KASAN:
    - nfsd: minor nfsd_setattr cleanup
    - nfsd: special case truncates some more
    - NFSv4: Fix memory and state leak in _nfs4_open_and_get_state
    - NFSv4: fix getacl head length estimation
    - NFSv4: fix getacl ERANGE for some ACL buffer sizes
    - rtc: sun6i: Add some locking
    - rtc: sun6i: Switch to the external oscillator
    - md linear: fix a race between linear_add() and linear_congested()
    - bcma: use (get|put)_device when probing/removing device driver
    - dmaengine: ipu: Make sure the interrupt routine checks all interrupts.
    - powerpc/xmon: Fix data-breakpoint
    - MIPS: IP22: Reformat inline assembler code to modern standards.
    - MIPS: IP22: Fix build error due to binutils 2.25 uselessnes.
    - scsi: lpfc: Correct WQ creation for pagesize
    - Linux 4.4.53

* move aufs.ko from -extra to linux-image package (LP: #1673498)
    - [config] aufs.ko moved to linux-image package

* [Xenial] net: better skb->sender_cpu and skb->napi_id cohabitation
    (LP: #1673303)
    - net: better skb->sender_cpu and skb->napi_id cohabitation

* lsattr 32bit does not work on 64bit kernel (Inappropriate ioctl error)
    (LP: #1619918)
    - btrfs: fix btrfs_compat_ioctl failures on non-compat ioctls

* linux-tools-common should Depends: lsb-release (LP: #1667571)
    - [Config] linux-tools-common depends on lsb-release

* Add Use-After-Free Patch for Ubuntu16.10 - EEH on BELL3 adapter fails to
    recover (serial/tty) (LP: #1669153)
    - 8250_pci: Fix potential use-after-free in error path

* [Hyper-V] pci-hyperv: Use device serial number as PCI domain (LP: #1667527)
    - net/mlx4_core: Use cq quota in SRIOV when creating completion EQs
    - PCI: hv: Use device serial number as PCI domain

* [Xenial - 16.04 ]Bonding driver - stack corruption when trying to copy 20
    bytes to a sockaddr (LP: #1668042)
    - net/bonding: Enforce active-backup policy for IPoIB bonds

* Request to backport cxlflash patches to Xenial SRU stream (LP: #1623750)
    - scsi: cxlflash: Scan host only after the port is ready for I/O
    - scsi: cxlflash: Remove the device cleanly in the system shutdown path
    - scsi: cxlflash: Fix to avoid EEH and host reset collisions
    - scsi: cxlflash: Improve EEH recovery time

* Xenial update to v4.4.52 stable release (LP: #1669016)
    - net/llc: avoid BUG_ON() in skb_orphan()
    - packet: fix races in fanout_add()
    - packet: Do not call fanout_release from atomic contexts
    - irda: Fix lockdep annotations in hashbin_delete().
    - ip: fix IP_CHECKSUM handling
    - net: socket: fix recvmmsg not returning error from sock_error
    - tty: serial: msm: Fix module autoload
    - USB: serial: mos7840: fix another NULL-deref at open
    - USB: serial: cp210x: add new IDs for GE Bx50v3 boards
    - USB: serial: ftdi_sio: fix modem-status error handling
    - USB: serial: ftdi_sio: fix extreme low-latency setting
    - USB: serial: ftdi_sio: fix line-status over-reporting
    - USB: serial: spcp8x5: fix modem-status handling
    - USB: serial: opticon: fix CTS retrieval at open
    - USB: serial: ark3116: fix register-accessor error handling
    - x86/platform/goldfish: Prevent unconditional loading
    - goldfish: Sanitize the broken interrupt handler
    - block: fix double-free in the failure path of cgwb_bdi_init()
    - rtlwifi: rtl_usb: Fix for URB leaking when doing ifconfig up/down
    - Revert "usb: chipidea: imx: enable CI_HDRC_SET_NON_ZERO_TTHA"
    - kvm: vmx: ensure VMCS is current while enabling PML
    - Linux 4.4.52

* Xenial update to v4.4.51 stable release (LP: #1669015)
    - vfs: fix uninitialized flags in splice_to_pipe()
    - siano: make it work again with CONFIG_VMAP_STACK
    - fuse: fix use after free issue in fuse_dev_do_read()
    - scsi: don't BUG_ON() empty DMA transfers
    - Fix missing sanity check in /dev/sg
    - Input: elan_i2c - add ELAN0605 to the ACPI table
    - drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor
    - drm/dp/mst: fix kernel oops when turning off secondary monitor
    - futex: Move futex_init() to core_initcall
    - ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user()
    - printk: use rcuidle console tracepoint
    - NTB: ntb_transport: fix debugfs_remove_recursive
    - ntb_transport: Pick an unused queue
    - bcache: Make gc wakeup sane, remove set_task_state()
    - mmc: core: fix multi-bit bus width without high-speed mode
    - Linux 4.4.51

* Xenial update to v4.4.50 stable release (LP: #1666324)
    - can: Fix kernel panic at security_sock_rcv_skb
    - ipv6: fix ip6_tnl_parse_tlv_enc_lim()
    - ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
    - tcp: fix 0 divide in __tcp_select_window()
    - net: use a work queue to defer net_disable_timestamp() work
    - ipv4: keep skb->dst around in presence of IP options
    - netlabel: out of bound access in cipso_v4_validate()
    - ip6_gre: fix ip6gre_err() invalid reads
    - ipv6: tcp: add a missing tcp_v6_restore_cb()
    - tcp: avoid infinite loop in tcp_splice_read()
    - tun: read vnet_hdr_sz once
    - macvtap: read vnet_hdr_size once
    - mlx4: Invoke softirqs after napi_reschedule
    - sctp: avoid BUG_ON on sctp_wait_for_sndbuf
    - sit: fix a double free on error path
    - net: introduce device min_header_len
    - packet: round up linear to header len
    - ping: fix a null pointer dereference
    - l2tp: do not use udp_ioctl()
    - Linux 4.4.50

* FlashGT Integration and Setup: fsbmc30: After 17th reboot of soft bootme,
    HTX & Linux errors seen with 256 virtual LUNs (LP: #1667239)
    - cxl: Fix coredump generation when cxl_get_fd() is used

* [Hyper-V] Ubuntu 14.04.2 LTS Generation 2 SCSI Errors on VSS Based Backups
    (LP: #1470250)
    - Drivers: hv: vss: Operation timeouts should match host expectation
    - SAUCE: Tools: hv: vss: Thaw the filesystem and continue after freeze fails

* kernel 4.4.0-63 with USB WLAN RTL8192CU freezes desktop (LP: #1666421)
    - rtlwifi: rtl_usb: Fix missing entry in USB driver's private data

* Export symbol "dev_pm_qos_update_user_latency_tolerance" (LP: #1666401)
    - PM / QoS: Export dev_pm_qos_update_user_latency_tolerance

* Linux ZFS port doesn't respect RLIMIT_FSIZE (LP: #1656259)
    - SAUCE: (noup) Update zfs to 0.6.5.6-0ubuntu16

-- Stefan Bader <stefan.bader@canonical.com>  Wed, 19 Apr 2017 17:14:23 +0200

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

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-04-24:

#38

Download full text (6.2 KiB)

Kernel 4.4.75 appears to have fixed the problem for C states.

carl@carl-5520:~$ sudo tlp stat -p
--- TLP 0.8 --------...

Kernel 4.4.75 appears to have fixed the problem for C states.

carl@carl-5520:~$ sudo tlp stat -p
--- TLP 0.8 --------------------------------------------

+++ Processor
CPU Model      = Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz

/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq  =  3900000 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq  =  3900000 [kHz]

/sys/devices/system/cpu/cpu1/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq  =  3900000 [kHz]
/sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq  =  3900000 [kHz]

/sys/devices/system/cpu/cpu2/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu2/cpufreq/scaling_min_freq  =   800000 [kHz]
/sys/devices/system/cpu/cpu2/cpufreq/scaling_max_freq  =   800000 [kHz]

/sys/devices/system/cpu/cpu3/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu3/cpufreq/scaling_min_freq  =   800000 [kHz]
/sys/devices/system/cpu/cpu3/cpufreq/scaling_max_freq  =   800000 [kHz]

/sys/devices/system/cpu/cpu4/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu4/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu4/cpufreq/scaling_min_freq  =   800000 [kHz]
/sys/devices/system/cpu/cpu4/cpufreq/scaling_max_freq  =   800000 [kHz]

/sys/devices/system/cpu/cpu5/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu5/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu5/cpufreq/scaling_min_freq  =   800000 [kHz]
/sys/devices/system/cpu/cpu5/cpufreq/scaling_max_freq  =   800000 [kHz]

/sys/devices/system/cpu/cpu6/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu6/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu6/cpufreq/scaling_min_freq  =   800000 [kHz]
/sys/devices/system/cpu/cpu6/cpufreq/scaling_max_freq  =  3900000 [kHz]

/sys/devices/system/cpu/cpu7/cpufreq/scaling_driver    = intel_pstate
/sys/devices/system/cpu/cpu7/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu7/cpufreq/scaling_min_freq  =   800000 [kHz]
/sys/devices/system/cpu/cpu7/cpufreq/scaling_max_freq  =   800000 [kHz]

/sys/devices/system/cpu/intel_pstate/min_perf_pct      = 100
/sys/devices/system/cpu/intel_pstate/max_perf_pct      = 100
/sys/devices/system/cpu/intel_pstate/no_turbo          = 0

x86_energy_perf_policy.cpu0                            = powersave
x86_energy_perf_policy.cpu1                            = powersave
x86_energy_perf_policy.cpu2                            = powersave
x86_energy_perf_policy.cpu3                            = powersave
x86_energy_perf_policy.cpu4                            = powersave
x86_energy_perf_policy.cpu5                            = powersave
x86_energy_perf_policy.cpu6                            = powersave
x86_energy_perf_policy.cpu7                            = powersave

/proc/sys/kernel/nmi_watchdog                          = 0

+++ Undervolting
PHC kernel not available.

Revision history for this message

Carl Mueller (cmuell89) wrote on 2017-04-24:

#39

Download full text (3.5 KiB)

@Kai-Feng. The other bug regarding p-state as disappeared (I cannot access it on Ubuntu bugs). This bug also appears to be fixed as p-state is now the default scaling driver. However tlp stat is showing unusual max/min cpufreq settings after kernel installation. Do these settings seem incorrect and/or are they even used by the pstate driver?

$ sudo tlp-stat -p

--- TLP 0.8 --------------------------------------------

+++ Processor
CPU Model = Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz

/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq = 3900000 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq = 3900000 [kHz]

/sys/devices/system/cpu/cpu1/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq = 3900000 [kHz]
/sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq = 3900000 [kHz]

/sys/devices/system/cpu/cpu2/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu2/cpufreq/scaling_min_freq = 800000 [kHz]
/sys/devices/system/cpu/cpu2/cpufreq/scaling_max_freq = 800000 [kHz]

/sys/devices/system/cpu/cpu3/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu3/cpufreq/scaling_min_freq = 800000 [kHz]
/sys/devices/system/cpu/cpu3/cpufreq/scaling_max_freq = 800000 [kHz]

/sys/devices/system/cpu/cpu4/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu4/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu4/cpufreq/scaling_min_freq = 800000 [kHz]
/sys/devices/system/cpu/cpu4/cpufreq/scaling_max_freq = 800000 [kHz]

/sys/devices/system/cpu/cpu5/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu5/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu5/cpufreq/scaling_min_freq = 800000 [kHz]
/sys/devices/system/cpu/cpu5/cpufreq/scaling_max_freq = 800000 [kHz]

/sys/devices/system/cpu/cpu6/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu6/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu6/cpufreq/scaling_min_freq = 800000 [kHz]
/sys/devices/system/cpu/cpu6/cpufreq/scaling_max_freq = 3900000 [kHz]

/sys/devices/system/cpu/cpu7/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu7/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu7/cpufreq/scaling_min_freq = 800000 [kHz]
/sys/devices/system/cpu/cpu7/cpufreq/scaling_max_freq = 800000 [kHz]

/sys/devices/system/cpu/intel_pstate/min_perf_pct = 100
/sys/devices/system/cpu/intel_pstate/max_perf_pct = 100
/sys/devices/system/cpu/intel_pstate/no_turbo = 0

x86_energy_perf_policy.cpu0 = powersave
x86_energy_perf_policy.cpu1 = powersave
x86_energy_perf_policy.cpu2 = powersave
x86_energy_perf_policy.cpu3 = powersa...