[Kernel-packages] [Bug 1759547] Re: Use med_power_with_dipm SATA LPM to save more power for mobile platforms
This bug was erroneously marked for verification in bionic; verification is not required and verification-needed-bionic is being removed. ** Tags added: verification-done-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/1759547 Title: Use med_power_with_dipm SATA LPM to save more power for mobile platforms Status in linux package in Ubuntu: Fix Released Bug description: In order to let CPU Package gets deeper C-state, we need to use power- saving SATA LPM to achieve that. This commit introduce a new config, SATA_MOBILE_LPM_POLICY: commit ebb82e3c79d2a956366d0848304a53648bd6350b Author: Hans de Goede Date: Mon Dec 11 17:52:16 2017 +0100 ahci: Allow setting a default LPM policy for mobile chipsets On many laptops setting a different LPM policy then unknown / max_performance can lead to power-savings of 1.0 - 1.5 Watts (when idle). Modern ultrabooks idle around 6W (at 50% screen brightness), 1.0 - 1.5W is a significant chunk of this. There are some performance / latency costs to enabling LPM by default, so it is desirable to make it possible to set a different LPM policy for mobile / laptop variants of chipsets / "South Bridges" vs their desktop / server counterparts. Also enabling LPM by default is not entirely without risk of regressions. At least min_power is known to cause issues with some disks, including some reports of data corruption. This commits adds a new ahci.mobile_lpm_policy kernel cmdline option, which defaults to a new SATA_MOBILE_LPM_POLICY Kconfig option so that Linux distributions can choose to set a LPM policy for mobile chipsets by default. The reason to have both a kernel cmdline option and a Kconfig default value for it, is to allow easy overriding of the default to allow trouble-shooting without needing to rebuild the kernel. Signed-off-by: Hans de Goede Signed-off-by: Tejun Heo "3 => Medium power with Device Initiated PM enable" is a well-balanced that can let Package enters deeper C-state. Also, Fedora already set SATA_MOBILE_LPM_POLICY=3 for their latest kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759547/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1759547] Re: Use med_power_with_dipm SATA LPM to save more power for mobile platforms
** Tags removed: verification-needed-bionic ** Tags added: kernel-fixup-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/1759547 Title: Use med_power_with_dipm SATA LPM to save more power for mobile platforms Status in linux package in Ubuntu: Fix Released Bug description: In order to let CPU Package gets deeper C-state, we need to use power- saving SATA LPM to achieve that. This commit introduce a new config, SATA_MOBILE_LPM_POLICY: commit ebb82e3c79d2a956366d0848304a53648bd6350b Author: Hans de Goede Date: Mon Dec 11 17:52:16 2017 +0100 ahci: Allow setting a default LPM policy for mobile chipsets On many laptops setting a different LPM policy then unknown / max_performance can lead to power-savings of 1.0 - 1.5 Watts (when idle). Modern ultrabooks idle around 6W (at 50% screen brightness), 1.0 - 1.5W is a significant chunk of this. There are some performance / latency costs to enabling LPM by default, so it is desirable to make it possible to set a different LPM policy for mobile / laptop variants of chipsets / "South Bridges" vs their desktop / server counterparts. Also enabling LPM by default is not entirely without risk of regressions. At least min_power is known to cause issues with some disks, including some reports of data corruption. This commits adds a new ahci.mobile_lpm_policy kernel cmdline option, which defaults to a new SATA_MOBILE_LPM_POLICY Kconfig option so that Linux distributions can choose to set a LPM policy for mobile chipsets by default. The reason to have both a kernel cmdline option and a Kconfig default value for it, is to allow easy overriding of the default to allow trouble-shooting without needing to rebuild the kernel. Signed-off-by: Hans de Goede Signed-off-by: Tejun Heo "3 => Medium power with Device Initiated PM enable" is a well-balanced that can let Package enters deeper C-state. Also, Fedora already set SATA_MOBILE_LPM_POLICY=3 for their latest kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759547/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1759547] Re: Use med_power_with_dipm SATA LPM to save more power for mobile platforms
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/1759547 Title: Use med_power_with_dipm SATA LPM to save more power for mobile platforms Status in linux package in Ubuntu: Fix Released Bug description: In order to let CPU Package gets deeper C-state, we need to use power- saving SATA LPM to achieve that. This commit introduce a new config, SATA_MOBILE_LPM_POLICY: commit ebb82e3c79d2a956366d0848304a53648bd6350b Author: Hans de Goede Date: Mon Dec 11 17:52:16 2017 +0100 ahci: Allow setting a default LPM policy for mobile chipsets On many laptops setting a different LPM policy then unknown / max_performance can lead to power-savings of 1.0 - 1.5 Watts (when idle). Modern ultrabooks idle around 6W (at 50% screen brightness), 1.0 - 1.5W is a significant chunk of this. There are some performance / latency costs to enabling LPM by default, so it is desirable to make it possible to set a different LPM policy for mobile / laptop variants of chipsets / "South Bridges" vs their desktop / server counterparts. Also enabling LPM by default is not entirely without risk of regressions. At least min_power is known to cause issues with some disks, including some reports of data corruption. This commits adds a new ahci.mobile_lpm_policy kernel cmdline option, which defaults to a new SATA_MOBILE_LPM_POLICY Kconfig option so that Linux distributions can choose to set a LPM policy for mobile chipsets by default. The reason to have both a kernel cmdline option and a Kconfig default value for it, is to allow easy overriding of the default to allow trouble-shooting without needing to rebuild the kernel. Signed-off-by: Hans de Goede Signed-off-by: Tejun Heo "3 => Medium power with Device Initiated PM enable" is a well-balanced that can let Package enters deeper C-state. Also, Fedora already set SATA_MOBILE_LPM_POLICY=3 for their latest kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759547/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1759547] Re: Use med_power_with_dipm SATA LPM to save more power for mobile platforms
This bug was fixed in the package linux - 4.17.0-6.7 --- linux (4.17.0-6.7) cosmic; urgency=medium * linux: 4.17.0-6.7 -proposed tracker (LP: #1783396) * [Regression] EXT4-fs error (device sda2): ext4_validate_block_bitmap:383: comm stress-ng: bg 4705: bad block bitmap checksum (LP: #1781709) - SAUCE: Revert "UBUNTU: SAUCE: ext4: fix ext4_validate_inode_bitmap: comm stress-ng: Corrupt inode bitmap" - SAUCE: ext4: check for allocation block validity with block group locked * Cosmic update to 4.17.9 stable release (LP: #1783201) - userfaultfd: hugetlbfs: fix userfaultfd_huge_must_wait() pte access - mm: hugetlb: yield when prepping struct pages - mm: teach dump_page() to correctly output poisoned struct pages - PCI / ACPI / PM: Resume bridges w/o drivers on suspend-to-RAM - ACPICA: Drop leading newlines from error messages - ACPI / battery: Safe unregistering of hooks - drm/amdgpu: Make struct amdgpu_atif private to amdgpu_acpi.c - tracing: Avoid string overflow - tracing: Fix missing return symbol in function_graph output - scsi: sg: mitigate read/write abuse - scsi: aacraid: Fix PD performance regression over incorrect qd being set - scsi: target: Fix truncated PR-in ReadKeys response - s390: Correct register corruption in critical section cleanup - drbd: fix access after free - vfio: Use get_user_pages_longterm correctly - ARM: dts: imx51-zii-rdu1: fix touchscreen pinctrl - ARM: dts: omap3: Fix am3517 mdio and emac clock references - ARM: dts: dra7: Disable metastability workaround for USB2 - cifs: Fix use after free of a mid_q_entry - cifs: Fix memory leak in smb2_set_ea() - cifs: Fix slab-out-of-bounds in send_set_info() on SMB2 ACE setting - cifs: Fix infinite loop when using hard mount option - drm: Use kvzalloc for allocating blob property memory - drm/udl: fix display corruption of the last line - drm/amdgpu: Add amdgpu_atpx_get_dhandle() - drm/amdgpu: Dynamically probe for ATIF handle (v2) - jbd2: don't mark block as modified if the handle is out of credits - ext4: add corruption check in ext4_xattr_set_entry() - ext4: always verify the magic number in xattr blocks - ext4: make sure bitmaps and the inode table don't overlap with bg descriptors - ext4: always check block group bounds in ext4_init_block_bitmap() - ext4: only look at the bg_flags field if it is valid - ext4: verify the depth of extent tree in ext4_find_extent() - ext4: include the illegal physical block in the bad map ext4_error msg - ext4: clear i_data in ext4_inode_info when removing inline data - ext4: never move the system.data xattr out of the inode body - ext4: avoid running out of journal credits when appending to an inline file - ext4: add more inode number paranoia checks - ext4: add more mount time checks of the superblock - ext4: check superblock mapped prior to committing - HID: i2c-hid: Fix "incomplete report" noise - HID: hiddev: fix potential Spectre v1 - HID: debug: check length before copy_to_user() - HID: core: allow concurrent registration of drivers - i2c: core: smbus: fix a potential missing-check bug - i2c: smbus: kill memory leak on emulated and failed DMA SMBus xfers - fs: allow per-device dax status checking for filesystems - dax: change bdev_dax_supported() to support boolean returns - dax: check for QUEUE_FLAG_DAX in bdev_dax_supported() - dm: prevent DAX mounts if not supported - mtd: cfi_cmdset_0002: Change definition naming to retry write operation - mtd: cfi_cmdset_0002: Change erase functions to retry for error - mtd: cfi_cmdset_0002: Change erase functions to check chip good only - netfilter: nf_log: don't hold nf_log_mutex during user access - staging: comedi: quatech_daqp_cs: fix no-op loop daqp_ao_insn_write() - Revert mm/vmstat.c: fix vmstat_update() preemption BUG - Linux 4.17.6 - bpf: reject passing modified ctx to helper functions - MIPS: Call dump_stack() from show_regs() - MIPS: Use async IPIs for arch_trigger_cpumask_backtrace() - MIPS: Fix ioremap() RAM check - drm/etnaviv: Check for platform_device_register_simple() failure - drm/etnaviv: Fix driver unregistering - drm/etnaviv: bring back progress check in job timeout handler - ACPICA: Clear status of all events when entering S5 - mmc: sdhci-esdhc-imx: allow 1.8V modes without 100/200MHz pinctrl states - mmc: dw_mmc: fix card threshold control configuration - mmc: renesas_sdhi_internal_dmac: Cannot clear the RX_IN_USE in abort - ibmasm: don't write out of bounds in read handler - staging: rtl8723bs: Prevent an underflow in rtw_check_beacon_data(). - staging: r8822be: Fix RTL8822be can't find any wireless AP - ata: Fix ZBC_OUT command block check - ata: Fix ZBC_OUT all bit handling - mei: discard
[Kernel-packages] [Bug 1759547] Re: Use med_power_with_dipm SATA LPM to save more power for mobile platforms
** Summary changed: - Use med_with_dipm SATA LPM to save more power for mobile platforms + Use med_power_with_dipm SATA LPM to save more power for mobile platforms -- 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/1759547 Title: Use med_power_with_dipm SATA LPM to save more power for mobile platforms Status in linux package in Ubuntu: Triaged Bug description: In order to let CPU Package gets deeper C-state, we need to use power- saving SATA LPM to achieve that. This commit introduce a new config, SATA_MOBILE_LPM_POLICY: commit ebb82e3c79d2a956366d0848304a53648bd6350b Author: Hans de Goede Date: Mon Dec 11 17:52:16 2017 +0100 ahci: Allow setting a default LPM policy for mobile chipsets On many laptops setting a different LPM policy then unknown / max_performance can lead to power-savings of 1.0 - 1.5 Watts (when idle). Modern ultrabooks idle around 6W (at 50% screen brightness), 1.0 - 1.5W is a significant chunk of this. There are some performance / latency costs to enabling LPM by default, so it is desirable to make it possible to set a different LPM policy for mobile / laptop variants of chipsets / "South Bridges" vs their desktop / server counterparts. Also enabling LPM by default is not entirely without risk of regressions. At least min_power is known to cause issues with some disks, including some reports of data corruption. This commits adds a new ahci.mobile_lpm_policy kernel cmdline option, which defaults to a new SATA_MOBILE_LPM_POLICY Kconfig option so that Linux distributions can choose to set a LPM policy for mobile chipsets by default. The reason to have both a kernel cmdline option and a Kconfig default value for it, is to allow easy overriding of the default to allow trouble-shooting without needing to rebuild the kernel. Signed-off-by: Hans de Goede Signed-off-by: Tejun Heo "3 => Medium power with Device Initiated PM enable" is a well-balanced that can let Package enters deeper C-state. Also, Fedora already set SATA_MOBILE_LPM_POLICY=3 for their latest kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759547/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
