[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Brad Figg]

** Tags added: cscc

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[bugproxy]

** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin1804

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Manoj Iyer]

Marking bionic as fix-released, since the patch identified here is in 
bionic-master
cf0de9a0d52f cpufreq: powernv: Dont assume distinct pstate values for nominal 
and pmin

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

** Changed in: ubuntu-power-systems
   Status: Fix Committed => Fix Released

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Launchpad Bug Tracker]

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: 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-2018-126
- 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)
- 

[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Stefan Bader]

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

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Manoj Iyer]

** Changed in: ubuntu-power-systems
   Status: Incomplete => Fix Committed

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Kleber Sacilotto de Souza]

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

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Thadeu Lima de Souza Cascardo]

** Tags added: kernel-bug-break-fix

** Description changed:

- 
  == SRU Justification ==
  Commit 09ca4c9b5958 introduced a bug in v4.8-rc2.  The bug is that
  an error happens in CPU frequency reporting when nominal and min pstates
  are the same (cpufreq).  Commit 3fa4680b8 fixes this issue.
  
  Commit 3fa4680b8 is in mailine as of v4.16-rc1 and has been cc'd to
  upstream stable.
  
  == Fix ==
  commit 3fa4680b860bf48b437d6a2c039789c4abe202ae
  Author: Shilpasri G Bhat 
  Date:   Fri Jan 12 12:43:53 2018 +0530
  
- cpufreq: powernv: Dont assume distinct pstate values for nominal and
+ cpufreq: powernv: Dont assume distinct pstate values for nominal and
  pmin
  
  == Regression Potential ==
- Low.  This commit been cc'd to upstream stable, so it has had additional 
+ Low.  This commit been cc'd to upstream stable, so it has had additional
  upstream review.
  
  == Test Case ==
  A test kernel was built with this patch and tested by the original bug 
reporter.
  The bug reporter states the test kernel resolved the bug.
- 
- 
  
  == Comment: #0 - Shilpasri G. Bhat
  +++ This bug was initially created as a clone of Bug #163527 +++
  
  ---Problem Description---
  Error in CPU frequency reporting when nominal and min pstates are same
  
  The patch for this issue is accepted to linux-next as
  
  3fa4680b860bf48b437d6a2c039789c4abe202ae
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  
  Some OpenPOWER boxes can have same pstate values for nominal and
  pmin pstates. In these boxes the current code will not initialize
  'powernv_pstate_info.min' variable and result in erroneous CPU
  frequency reporting. This patch fixes this problem.
  
  Fixes: 09ca4c9b5958 (cpufreq: powernv: Replacing pstate_id with frequency 
table index)
  Reported-by: Alvin Wang 
  Signed-off-by: Shilpasri G Bhat 
  Acked-by: Viresh Kumar 
  Cc: 4.8+  # 4.8+
  Signed-off-by: Rafael J. Wysocki 
  
  https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-
  pm.git/commit/drivers/cpufreq/powernv-cpufreq.c?h=linux-
  next=3fa4680b860bf48b437d6a2c039789c4abe202ae
+ 
+ break-fix: - cf0de9a0d52ff64bcb6b20b6fa4b5d3eb4637719
+ break-fix: - 3fa4680b860bf48b437d6a2c039789c4abe202ae

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

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Dimitri John Ledkov]

The bug is in progress, thus the fix for this issues is not yet available for 
testing.
When it is available, there will be a comment on this bug report, calling for 
testing and listing exact version number of the kernel which includes the fix.

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
  (cpufreq)

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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Joseph Salisbury]

SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2018-February/090263.html

** Description changed:

- == Comment: #0 - Shilpasri G. Bhat 
+ 
+ == SRU Justification ==
+ Commit 09ca4c9b5958 introduced a bug in v4.8-rc2.  The bug is that
+ an error happens in CPU frequency reporting when nominal and min pstates
+ are the same (cpufreq).  Commit 3fa4680b8 fixes this issue.
+ 
+ Commit 3fa4680b8 is in mailine as of v4.16-rc1 and has been cc'd to
+ upstream stable.
+ 
+ == Fix ==
+ commit 3fa4680b860bf48b437d6a2c039789c4abe202ae
+ Author: Shilpasri G Bhat 
+ Date:   Fri Jan 12 12:43:53 2018 +0530
+ 
+ cpufreq: powernv: Dont assume distinct pstate values for nominal and
+ pmin
+ 
+ == Regression Potential ==
+ Low.  This commit been cc'd to upstream stable, so it has had additional 
+ upstream review.
+ 
+ == Test Case ==
+ A test kernel was built with this patch and tested by the original bug 
reporter.
+ The bug reporter states the test kernel resolved the bug.
+ 
+ 
+ 
+ == Comment: #0 - Shilpasri G. Bhat
  +++ This bug was initially created as a clone of Bug #163527 +++
  
  ---Problem Description---
  Error in CPU frequency reporting when nominal and min pstates are same
-  
  
  The patch for this issue is accepted to linux-next as
  
  3fa4680b860bf48b437d6a2c039789c4abe202ae
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  
  Some OpenPOWER boxes can have same pstate values for nominal and
  pmin pstates. In these boxes the current code will not initialize
  'powernv_pstate_info.min' variable and result in erroneous CPU
  frequency reporting. This patch fixes this problem.
  
  Fixes: 09ca4c9b5958 (cpufreq: powernv: Replacing pstate_id with frequency 
table index)
  Reported-by: Alvin Wang 
  Signed-off-by: Shilpasri G Bhat 
  Acked-by: Viresh Kumar 
  Cc: 4.8+  # 4.8+
  Signed-off-by: Rafael J. Wysocki 
  
- 
- 
https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/drivers/cpufreq/powernv-cpufreq.c?h=linux-next=3fa4680b860bf48b437d6a2c039789c4abe202ae
+ https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-
+ pm.git/commit/drivers/cpufreq/powernv-cpufreq.c?h=linux-
+ next=3fa4680b860bf48b437d6a2c039789c4abe202ae

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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Manoj Iyer]

** Changed in: ubuntu-power-systems
   Status: In Progress => Incomplete

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Title:
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Frank Heimes]

** Changed in: ubuntu-power-systems
   Status: New => In Progress

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Title:
  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Joseph Salisbury]

I built a test kernel with commit 3fa4680b860bf48b437d6a2c039789c4abe202ae.  
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1746174

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!

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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Joseph Salisbury]

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

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

** Changed in: linux (Ubuntu)
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) => 
Joseph Salisbury (jsalisbury)

** Also affects: linux (Ubuntu Bionic)
   Importance: High
 Assignee: Joseph Salisbury (jsalisbury)
   Status: In Progress

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

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

** Changed in: linux (Ubuntu Artful)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Artful)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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  Error in CPU frequency reporting when nominal and min pstates are same
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[Bug 1746174] Re: Error in CPU frequency reporting when nominal and min pstates are same (cpufreq)

[Frank Heimes]

** Also affects: ubuntu-power-systems
   Importance: Undecided
   Status: New

** Changed in: ubuntu-power-systems
   Importance: Undecided => High

** Changed in: ubuntu-power-systems
 Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)

** Tags added: triage-g

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  Error in CPU frequency reporting when nominal and min pstates are same
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