[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2019-02-04 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.19.0-12.13

---
linux (4.19.0-12.13) disco; urgency=medium

  * linux: 4.19.0-12.13 -proposed tracker (LP: #1813664)

  * kernel oops in bcache module (LP: #1793901)
- SAUCE: bcache: never writeback a discard operation

  * Disco update: 4.19.18 upstream stable release (LP: #1813611)
- ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped 
address
- mlxsw: spectrum: Disable lag port TX before removing it
- mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion
- net: dsa: mv88x6xxx: mv88e6390 errata
- net, skbuff: do not prefer skb allocation fails early
- qmi_wwan: add MTU default to qmap network interface
- ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses
- net: clear skb->tstamp in bridge forwarding path
- netfilter: ipset: Allow matching on destination MAC address for mac and
  ipmac sets
- gpio: pl061: Move irq_chip definition inside struct pl061
- drm/amd/display: Guard against null stream_state in set_crc_source
- drm/amdkfd: fix interrupt spin lock
- ixgbe: allow IPsec Tx offload in VEPA mode
- platform/x86: asus-wmi: Tell the EC the OS will handle the display off
  hotkey
- e1000e: allow non-monotonic SYSTIM readings
- usb: typec: tcpm: Do not disconnect link for self powered devices
- selftests/bpf: enable (uncomment) all tests in test_libbpf.sh
- of: overlay: add missing of_node_put() after add new node to changeset
- writeback: don't decrement wb->refcnt if !wb->bdi
- serial: set suppress_bind_attrs flag only if builtin
- bpf: Allow narrow loads with offset > 0
- ALSA: oxfw: add support for APOGEE duet FireWire
- x86/mce: Fix -Wmissing-prototypes warnings
- MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
- crypto: ecc - regularize scalar for scalar multiplication
- arm64: perf: set suppress_bind_attrs flag to true
- drm/atomic-helper: Complete fake_commit->flip_done potentially earlier
- clk: meson: meson8b: fix incorrect divider mapping in cpu_scale_table
- samples: bpf: fix: error handling regarding kprobe_events
- usb: gadget: udc: renesas_usb3: add a safety connection way for
  forced_b_device
- fpga: altera-cvp: fix probing for multiple FPGAs on the bus
- selinux: always allow mounting submounts
- ASoC: pcm3168a: Don't disable pcm3168a when CONFIG_PM defined
- scsi: qedi: Check for session online before getting iSCSI TLV data.
- drm/amdgpu: Reorder uvd ring init before uvd resume
- rxe: IB_WR_REG_MR does not capture MR's iova field
- efi/libstub: Disable some warnings for x86{,_64}
- jffs2: Fix use of uninitialized delayed_work, lockdep breakage
- clk: imx: make mux parent strings const
- pstore/ram: Do not treat empty buffers as valid
- media: uvcvideo: Refactor teardown of uvc on USB disconnect
- powerpc/xmon: Fix invocation inside lock region
- powerpc/pseries/cpuidle: Fix preempt warning
- media: firewire: Fix app_info parameter type in avc_ca{,_app}_info
- ASoC: use dma_ops of parent device for acp_audio_dma
- media: venus: core: Set dma maximum segment size
- staging: erofs: fix use-after-free of on-stack `z_erofs_vle_unzip_io'
- net: call sk_dst_reset when set SO_DONTROUTE
- scsi: target: use consistent left-aligned ASCII INQUIRY data
- scsi: target/core: Make sure that target_wait_for_sess_cmds() waits long
  enough
- selftests: do not macro-expand failed assertion expressions
- arm64: kasan: Increase stack size for KASAN_EXTRA
- clk: imx6q: reset exclusive gates on init
- arm64: Fix minor issues with the dcache_by_line_op macro
- bpf: relax verifier restriction on BPF_MOV | BPF_ALU
- kconfig: fix file name and line number of warn_ignored_character()
- kconfig: fix memory leak when EOF is encountered in quotation
- mmc: atmel-mci: do not assume idle after atmci_request_end
- btrfs: volumes: Make sure there is no overlap of dev extents at mount time
- btrfs: alloc_chunk: fix more DUP stripe size handling
- btrfs: fix use-after-free due to race between replace start and cancel
- btrfs: improve error handling of btrfs_add_link
- tty/serial: do not free trasnmit buffer page under port lock
- perf intel-pt: Fix error with config term "pt=0"
- perf tests ARM: Disable breakpoint tests 32-bit
- perf svghelper: Fix unchecked usage of strncpy()
- perf parse-events: Fix unchecked usage of strncpy()
- perf vendor events intel: Fix Load_Miss_Real_Latency on SKL/SKX
- netfilter: ipt_CLUSTERIP: check MAC address when duplicate config is set
- netfilter: ipt_CLUSTERIP: remove wrong WARN_ON_ONCE in netns exit routine
- netfilter: ipt_CLUSTERIP: fix deadlock in netns exit routine
- x86/topology: Use total_cpus for max logical packages calculation
- dm crypt: use u64 instead of sector_t 

[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-12-03 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.15.0-42.45

---
linux (4.15.0-42.45) bionic; urgency=medium

  * linux: 4.15.0-42.45 -proposed tracker (LP: #1803592)

  * [FEAT] Guest-dedicated Crypto Adapters (LP: #1787405)
- KVM: s390: reset crypto attributes for all vcpus
- KVM: s390: vsie: simulate VCPU SIE entry/exit
- KVM: s390: introduce and use KVM_REQ_VSIE_RESTART
- KVM: s390: refactor crypto initialization
- s390: vfio-ap: base implementation of VFIO AP device driver
- s390: vfio-ap: register matrix device with VFIO mdev framework
- s390: vfio-ap: sysfs interfaces to configure adapters
- s390: vfio-ap: sysfs interfaces to configure domains
- s390: vfio-ap: sysfs interfaces to configure control domains
- s390: vfio-ap: sysfs interface to view matrix mdev matrix
- KVM: s390: interface to clear CRYCB masks
- s390: vfio-ap: implement mediated device open callback
- s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl
- s390: vfio-ap: zeroize the AP queues
- s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl
- KVM: s390: Clear Crypto Control Block when using vSIE
- KVM: s390: vsie: Do the CRYCB validation first
- KVM: s390: vsie: Make use of CRYCB FORMAT2 clear
- KVM: s390: vsie: Allow CRYCB FORMAT-2
- KVM: s390: vsie: allow CRYCB FORMAT-1
- KVM: s390: vsie: allow CRYCB FORMAT-0
- KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-1
- KVM: s390: vsie: allow guest FORMAT-1 CRYCB on host FORMAT-2
- KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-2
- KVM: s390: device attrs to enable/disable AP interpretation
- KVM: s390: CPU model support for AP virtualization
- s390: doc: detailed specifications for AP virtualization
- KVM: s390: fix locking for crypto setting error path
- KVM: s390: Tracing APCB changes
- s390: vfio-ap: setup APCB mask using KVM dedicated function
- s390/zcrypt: Add ZAPQ inline function.
- s390/zcrypt: Review inline assembler constraints.
- s390/zcrypt: Integrate ap_asm.h into include/asm/ap.h.
- s390/zcrypt: fix ap_instructions_available() returncodes
- s390/zcrypt: remove VLA usage from the AP bus
- s390/zcrypt: Remove deprecated ioctls.
- s390/zcrypt: Remove deprecated zcrypt proc interface.
- s390/zcrypt: Support up to 256 crypto adapters.
- [Config:] Enable CONFIG_S390_AP_IOMMU and set CONFIG_VFIO_AP to module.

  * Bypass of mount visibility through userns + mount propagation (LP: #1789161)
- mount: Retest MNT_LOCKED in do_umount
- mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts

  *  CVE-2018-18955: nested user namespaces with more than five extents
incorrectly grant privileges over inode (LP: #1801924) // CVE-2018-18955
- userns: also map extents in the reverse map to kernel IDs

  * kdump fail due to an IRQ storm (LP: #1797990)
- SAUCE: x86/PCI: Export find_cap() to be used in early PCI code
- SAUCE: x86/quirks: Add parameter to clear MSIs early on boot
- SAUCE: x86/quirks: Scan all busses for early PCI quirks

 -- Thadeu Lima de Souza Cascardo   Thu, 15 Nov
2018 17:01:46 -0200

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

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Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in linux source package in Cosmic:
  Fix Released

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under 

[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-12-03 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.18.0-12.13

---
linux (4.18.0-12.13) cosmic; urgency=medium

  * linux: 4.18.0-12.13 -proposed tracker (LP: #1802743)

  * [FEAT] Guest-dedicated Crypto Adapters (LP: #1787405)
- s390/zcrypt: Add ZAPQ inline function.
- s390/zcrypt: Review inline assembler constraints.
- s390/zcrypt: Integrate ap_asm.h into include/asm/ap.h.
- s390/zcrypt: fix ap_instructions_available() returncodes
- KVM: s390: vsie: simulate VCPU SIE entry/exit
- KVM: s390: introduce and use KVM_REQ_VSIE_RESTART
- KVM: s390: refactor crypto initialization
- s390: vfio-ap: base implementation of VFIO AP device driver
- s390: vfio-ap: register matrix device with VFIO mdev framework
- s390: vfio-ap: sysfs interfaces to configure adapters
- s390: vfio-ap: sysfs interfaces to configure domains
- s390: vfio-ap: sysfs interfaces to configure control domains
- s390: vfio-ap: sysfs interface to view matrix mdev matrix
- KVM: s390: interface to clear CRYCB masks
- s390: vfio-ap: implement mediated device open callback
- s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl
- s390: vfio-ap: zeroize the AP queues
- s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl
- KVM: s390: Clear Crypto Control Block when using vSIE
- KVM: s390: vsie: Do the CRYCB validation first
- KVM: s390: vsie: Make use of CRYCB FORMAT2 clear
- KVM: s390: vsie: Allow CRYCB FORMAT-2
- KVM: s390: vsie: allow CRYCB FORMAT-1
- KVM: s390: vsie: allow CRYCB FORMAT-0
- KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-1
- KVM: s390: vsie: allow guest FORMAT-1 CRYCB on host FORMAT-2
- KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-2
- KVM: s390: device attrs to enable/disable AP interpretation
- KVM: s390: CPU model support for AP virtualization
- s390: doc: detailed specifications for AP virtualization
- KVM: s390: fix locking for crypto setting error path
- KVM: s390: Tracing APCB changes
- s390: vfio-ap: setup APCB mask using KVM dedicated function
- [Config:] Enable CONFIG_S390_AP_IOMMU and set CONFIG_VFIO_AP to module.

  * Bypass of mount visibility through userns + mount propagation (LP: #1789161)
- mount: Retest MNT_LOCKED in do_umount
- mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts

  *  CVE-2018-18955: nested user namespaces with more than five extents
incorrectly grant privileges over inode (LP: #1801924) // CVE-2018-18955
- userns: also map extents in the reverse map to kernel IDs

  * kdump fail due to an IRQ storm (LP: #1797990)
- SAUCE: x86/PCI: Export find_cap() to be used in early PCI code
- SAUCE: x86/quirks: Add parameter to clear MSIs early on boot
- SAUCE: x86/quirks: Scan all busses for early PCI quirks

  * crash in ENA driver on removing an interface (LP: #1802341)
- SAUCE: net: ena: fix crash during ena_remove()

  * Ubuntu 18.04.1 - [s390x] Kernel panic while stressing network bonding
(LP: #1797367)
- s390/qeth: reduce hard-coded access to ccw channels
- s390/qeth: sanitize strings in debug messages

  * Add checksum offload and TSO support for HiNIC adapters (LP: #1800664)
- net-next/hinic: add checksum offload and TSO support

  * smartpqi updates for ubuntu 18.04.2 (LP: #1798208)
- scsi: smartpqi: improve handling for sync requests
- scsi: smartpqi: improve error checking for sync requests
- scsi: smartpqi: add inspur advantech ids
- scsi: smartpqi: fix critical ARM issue reading PQI index registers
- scsi: smartpqi: bump driver version to 1.1.4-130

  * [GLK/CLX] Enhanced IBRS (LP: #1786139)
- x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
- x86/speculation: Support Enhanced IBRS on future CPUs

  * Enable keyboard wakeup for S2Idle laptops (LP: #1798552)
- Input: i8042 - enable keyboard wakeups by default when s2idle is used

  * Overlayfs in user namespace leaks directory content of inaccessible
directories (LP: #1793458) // CVE-2018-6559
- SAUCE: overlayfs: ensure mounter privileges when reading directories

  * Update ENA driver to version 2.0.1K (LP: #1798182)
- net: ena: remove ndo_poll_controller
- net: ena: fix auto casting to boolean
- net: ena: minor performance improvement
- net: ena: complete host info to match latest ENA spec
- net: ena: introduce Low Latency Queues data structures according to ENA 
spec
- net: ena: add functions for handling Low Latency Queues in ena_com
- net: ena: add functions for handling Low Latency Queues in ena_netdev
- net: ena: use CSUM_CHECKED device indication to report skb's checksum 
status
- net: ena: explicit casting and initialization, and clearer error handling
- net: ena: limit refill Rx threshold to 256 to avoid latency issues
- net: ena: change rx copybreak default to reduce kernel memory pressure
- net: ena: remove redundant 

[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-19 Thread AceLan Kao
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic

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

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1801875

Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801875/+subscriptions

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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-15 Thread 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-
cosmic' to 'verification-done-cosmic'. If the problem still exists,
change the tag 'verification-needed-cosmic' to 'verification-failed-
cosmic'.

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-cosmic

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1801875

Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801875/+subscriptions

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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-15 Thread 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

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1801875

Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801875/+subscriptions

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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-07 Thread Khaled El Mously
** Changed in: linux (Ubuntu Bionic)
   Status: New => Fix Committed

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

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1801875

Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-06 Thread AceLan Kao
** Changed in: linux (Ubuntu)
   Status: In Progress => Fix Committed

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Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  New
Status in linux source package in Cosmic:
  New

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-06 Thread Kleber Sacilotto de Souza
** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
   Status: New

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

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Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  New
Status in linux source package in Cosmic:
  New

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801875/+subscriptions

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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-06 Thread Ubuntu Foundations Team Bug Bot
** Tags added: patch

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https://bugs.launchpad.net/bugs/1801875

Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  In Progress

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801875/+subscriptions

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[Kernel-packages] [Bug 1801875] Re: Power consumption during s2idle is higher than long idle(sk hynix)

2018-11-06 Thread AceLan Kao
** Summary changed:

- Suspend to idle power consumption higher than long idle (sk hynix)
+ Power consumption during s2idle is higher than long idle(sk hynix)

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https://bugs.launchpad.net/bugs/1801875

Title:
  Power consumption during s2idle is higher than long idle(sk hynix)

Status in linux package in Ubuntu:
  In Progress

Bug description:
  [Impact]
  On some Dell XPS models, we observed the power consumption raises higher than 
long idle does during s2idle with sk hynix nvme.

  C2:
  Short idle: 4
  Long idle: 1
  S2I: 3.7
  S5: 0.19

  C3:
  Short idle: 7.2
  Long idle: 4.5
  S2I: 6.22
  S5: 0.18

  C5:
  Short idle: 6.5
  Long idle: 1
  S2I: 2.88
  S5: 0.18

  [Fix]
  From SK hynix FE, MS Windows doesn't put nvme to D3, and uses its own APST 
feature to do the power management. To leverage its APST feature during s2idle, 
we can't disable nvme device while suspending, too.
  So, here is what we did on the driver, 1. prevent nvme from entering D3, 2. 
prevent nvme from being disabled when suspending.

  [Test]
  Verified on different XPS machines with different sk hynix nvme disks, it 
fixes the power consumption issue with no regression. And the power consumption 
drops to 0.77W during s2idle.

  [Regression Potential]
  Low, the patches only applied to specific nvme module, and from our test, the 
system is still stable.

  [Misc]
  This issue should be fixed by the firmware, and we're pushing sk hynix to fix 
it. But before sk hynix find out how to solve it, we have to preserve these 
commits in our kernel for a while.
  BTW, the patches use pm_suspend_via_s2idle() function from below commit which 
is still under reviewing.
  https://lists.ubuntu.com/archives/kernel-team/2018-October/096141.html

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801875/+subscriptions

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