[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Frank Heimes]

Ticket is already Fix Released - hence verification is no longer needed
- adjusting the tags ...

** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic

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Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Brad Figg]

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

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-bionic

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Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Frank Heimes]

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

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https://bugs.launchpad.net/bugs/1753708

Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.15.0-15.16

---
linux (4.15.0-15.16) bionic; urgency=medium

  * linux: 4.15.0-15.16 -proposed tracker (LP: #1761177)

  * FFe: Enable configuring resume offset via sysfs (LP: #1760106)
- PM / hibernate: Make passing hibernate offsets more friendly

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

  * Ubuntu18.04:POWER9:DD2.2 - Unable to start a KVM guest with default machine
type(pseries-bionic) complaining "KVM implementation does not support
Transactional Memory, try cap-htm=off" (kvm) (LP: #1752026)
- powerpc: Use feature bit for RTC presence rather than timebase presence
- powerpc: Book E: Remove unused CPU_FTR_L2CSR bit
- powerpc: Free up CPU feature bits on 64-bit machines
- powerpc: Add CPU feature bits for TM bug workarounds on POWER9 v2.2
- powerpc/powernv: Provide a way to force a core into SMT4 mode
- KVM: PPC: Book3S HV: Work around transactional memory bugs in POWER9
- KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode
- KVM: PPC: Book3S HV: Work around TEXASR bug in fake suspend state

  * Important Kernel fixes to be backported for Power9 (kvm) (LP: #1758910)
- powerpc/mm: Fixup tlbie vs store ordering issue on POWER9

  * Ubuntu 18.04 - IO Hang on some namespaces when running HTX with 16
namespaces  (Bolt / NVMe) (LP: #1757497)
- powerpc/64s: Fix lost pending interrupt due to race causing lost update to
  irq_happened

  * fwts-efi-runtime-dkms 18.03.00-0ubuntu1: fwts-efi-runtime-dkms kernel module
failed to build (LP: #1760876)
- [Packaging] include the retpoline extractor in the headers

linux (4.15.0-14.15) bionic; urgency=medium

  * linux: 4.15.0-14.15 -proposed tracker (LP: #1760678)

  * [Bionic] mlx4 ETH - mlnx_qos failed when set some TC to vendor
(LP: #1758662)
- net/mlx4_en: Change default QoS settings

  * AT_BASE_PLATFORM in AUXV is absent on kernels available on Ubuntu 17.10
(LP: #1759312)
- powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features

  * Bionic update to 4.15.15 stable release (LP: #1760585)
- net: dsa: Fix dsa_is_user_port() test inversion
- openvswitch: meter: fix the incorrect calculation of max delta_t
- qed: Fix MPA unalign flow in case header is split across two packets.
- tcp: purge write queue upon aborting the connection
- qed: Fix non TCP packets should be dropped on iWARP ll2 connection
- sysfs: symlink: export sysfs_create_link_nowarn()
- net: phy: relax error checking when creating sysfs link netdev->phydev
- devlink: Remove redundant free on error path
- macvlan: filter out unsupported feature flags
- net: ipv6: keep sk status consistent after datagram connect failure
- ipv6: old_dport should be a __be16 in __ip6_datagram_connect()
- ipv6: sr: fix NULL pointer dereference when setting encap source address
- ipv6: sr: fix scheduling in RCU when creating seg6 lwtunnel state
- mlxsw: spectrum_buffers: Set a minimum quota for CPU port traffic
- net: phy: Tell caller result of phy_change()
- ipv6: Reflect MTU changes on PMTU of exceptions for MTU-less routes
- net sched actions: return explicit error when tunnel_key mode is not
  specified
- ppp: avoid loop in xmit recursion detection code
- rhashtable: Fix rhlist duplicates insertion
- test_rhashtable: add test case for rhltable with duplicate objects
- kcm: lock lower socket in kcm_attach
- sch_netem: fix skb leak in netem_enqueue()
- ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event()
- net: use skb_to_full_sk() in skb_update_prio()
- net: Fix hlist corruptions in inet_evict_bucket()
- s390/qeth: free netdevice when removing a card
- s390/qeth: when thread completes, wake up all waiters
- s390/qeth: lock read device while queueing next buffer
- s390/qeth: on channel error, reject further cmd requests
- soc/fsl/qbman: fix issue in qman_delete_cgr_safe()
- dpaa_eth: fix error in dpaa_remove()
- dpaa_eth: remove duplicate initialization
- dpaa_eth: increment the RX dropped counter when needed
- dpaa_eth: remove duplicate increment of the tx_errors counter
- dccp: check sk for closed state in dccp_sendmsg()
- ipv6: fix access to non-linear packet in ndisc_fill_redirect_hdr_option()
- l2tp: do not accept arbitrary sockets
- net: ethernet: arc: Fix a potential memory leak if an optional regulator 
is
  deferred
- net: ethernet: ti: cpsw: add check for in-band mode setting with RGMII PHY
  interface
- net: fec: Fix unbalanced PM runtime calls
- net/iucv: Free memory obtained by kzalloc
- netlink: avoid a double skb free in genlmsg_mcast()
- net: Only honor ifindex in IP_PKTINFO if non-0
- net: systemport: Rewrite __bcm_sysport_tx_reclaim()
- 

[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[bugproxy]

** Tags removed: severity-critical
** Tags added: severity-medium

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https://bugs.launchpad.net/bugs/1753708

Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Frank Heimes]

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

-- 
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https://bugs.launchpad.net/bugs/1753708

Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Thadeu Lima de Souza Cascardo]

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

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Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Frank Heimes]

** Tags added: triage-g

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https://bugs.launchpad.net/bugs/1753708

Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Bionic:
  Triaged

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Thadeu Lima de Souza Cascardo]

We changed the default to madvise, as using it as always results in
performance regressions in our testing. See bug
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1703742.

Have you run any specific tests on Power Systems that would justify
changing the setting for ppc64el only?

Thanks.
Cascardo.

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Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Bionic:
  Triaged

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Frank Heimes]

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

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

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

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https://bugs.launchpad.net/bugs/1753708

Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Bionic:
  Triaged

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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[Kernel-packages] [Bug 1753708] Re: Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to "always"

[Joseph Salisbury]

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

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

** Tags added: kernel-da-key

** Also affects: linux (Ubuntu Bionic)
   Importance: Medium
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
   Status: Triaged

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Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Bionic:
  Triaged

Bug description:
  == Comment: #0 - Praveen K. Pandey  - 2018-03-06 
02:06:31 ==
  Problem Description :

  PowerPC systems running Ubuntu18.04 have Transparent Huge Pages (THP) 
  always set to "madvise". It should be by default set to "always". 

  Reproducible Step:

  1-  Install Ubuntu 18.04 on PowerPC box 
  2- cat /sys/kernel/mm/transparent_hugepage/enabled
  3- grep  "TRANSPARENT" /boot/config-$(uname -r)

  it is set to  madvise

  LOG:

  root@system:~# grep  "TRANSPARENT" /boot/config-$(uname -r)
  CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
  CONFIG_TRANSPARENT_HUGEPAGE=y
  # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
  CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
  CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
  root@system:~# cat /sys/kernel/mm/transparent_hugepage/enabled
  always [madvise] never
  root@system:~# 

  Regards
  Praveen

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