Re: turn off APST completely Tricky...
So I have been running with: BOOT_IMAGE=/vmlinuz-4.13.0-8-generic root=UUID=f7ae652b-cbf6-48b8-bc6a-d3963957ab57 ro nvme_core.default_ps_max_latency_us=0 for the last month or so with no issues.... I suppose APST is about reducing power consumption, but I am not clear how much it saves.... in my (desktop) case the biggest reduction in power consumption likely comes from being able to suspend the system as a whole, so being able to suspend/resume likely outweighs the benefit of apst, on the other hand for someone with an always on system, or someone that prefers to hibernate or shutdown, having apst enabled could be beneficial... -- 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/1705748 Title: Samsung SSD 960 EVO 500GB refused to change power state Status in linux package in Ubuntu: Triaged Bug description: Originally thought my issue was same as this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184 but requested to report as separate bug System becomes unusable at seemingly random times but especially after resume from suspend due to disk 'disappearing' becoming inaccessible, with hundreds of I/O errors logged. After viewing the above bug report yesterday as a quick temporary fix I added kernel param, updated grub, etc with: GRUB_CMDLINE_LINUX_DEFAULT="nvme_core.default_ps_max_latency_us=0" System appears to have been stable for the last day, but is presumably using more power than it should. System, drive details below: M2 nvme drive: Samsung SSD 960 EVO 500GB Ubuntu 4.10.0-26.30~16.04.1-generic 4.10.17 M/B Asus Prime B350m-A Ryzen 1600 cpu Jul 20 16:32:59 phs08 kernel: [ 190.893571] INVALID_DEVICE_REQUEST device=00:00.0 address=0xfffffffdf8000000 flags=0x0a00] Jul 20 16:33:05 phs08 kernel: [ 197.010928] nvme 0000:01:00.0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffff Jul 20 16:33:05 phs08 kernel: [ 197.046980] pci_raw_set_power_state: 4 callbacks suppressed Jul 20 16:33:05 phs08 kernel: [ 197.046985] nvme 0000:01:00.0: Refused to change power state, currently in D3 Jul 20 16:33:05 phs08 kernel: [ 197.047163] nvme nvme0: Removing after probe failure status: -19 Jul 20 16:33:05 phs08 kernel: [ 197.047182] nvme0n1: detected capacity change from 500107862016 to 0 Jul 20 16:33:05 phs08 kernel: [ 197.047793] blk_update_request: I/O error, dev nvme0n1, sector 0 nvme list /dev/nvme0n1 S3EUNX0J305518L Samsung SSD 960 EVO 500GB 1.2 1 125.20 GB / 500.11 GB 512 B + 0 B 2B7QCXE7 sudo nvme id-ctrl /dev/nvme0 NVME Identify Controller: vid : 0x144d ssvid : 0x144d sn : S3EUNX0J305518L mn : Samsung SSD 960 EVO 500GB fr : 2B7QCXE7 rab : 2 ieee : 002538 cmic : 0 mdts : 9 cntlid : 2 ver : 10200 rtd3r : 7a120 rtd3e : 4c4b40 oaes : 0 oacs : 0x7 acl : 7 aerl : 3 frmw : 0x16 lpa : 0x3 elpe : 63 npss : 4 avscc : 0x1 apsta : 0x1 wctemp : 350 cctemp : 352 mtfa : 0 hmpre : 0 hmmin : 0 tnvmcap : 500107862016 unvmcap : 0 rpmbs : 0 sqes : 0x66 cqes : 0x44 nn : 1 oncs : 0x1f fuses : 0 fna : 0x5 vwc : 0x1 awun : 255 awupf : 0 nvscc : 1 acwu : 0 sgls : 0 ps 0 : mp:6.04W operational enlat:0 exlat:0 rrt:0 rrl:0 rwt:0 rwl:0 idle_power:- active_power:- ps 1 : mp:5.09W operational enlat:0 exlat:0 rrt:1 rrl:1 rwt:1 rwl:1 idle_power:- active_power:- ps 2 : mp:4.08W operational enlat:0 exlat:0 rrt:2 rrl:2 rwt:2 rwl:2 idle_power:- active_power:- ps 3 : mp:0.0400W non-operational enlat:210 exlat:1500 rrt:3 rrl:3 rwt:3 rwl:3 idle_power:- active_power:- ps 4 : mp:0.0050W non-operational enlat:2200 exlat:6000 rrt:4 rrl:4 rwt:4 rwl:4 idle_power:- active_power:- --- ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: drgrumpy 2192 F.... pulseaudio /dev/snd/pcmC1D0p: drgrumpy 2192 F...m pulseaudio /dev/snd/controlC1: drgrumpy 2192 F.... pulseaudio DistroRelease: Linux 18.2 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=a6896cdd-6bac-4e7f-9e13-55460859c3ec InstallationDate: Installed on 2017-07-06 (15 days ago) InstallationMedia: Linux Mint 18.2 "Sonya" - Release amd64 20170628 IwConfig: lo no wireless extensions. enp37s0 no wireless extensions. MachineType: System manufacturer System Product Name Package: linux (not installed) ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-26-generic root=UUID=f7ae652b-cbf6-48b8-bc6a-d3963957ab57 ro nvme_core.default_ps_max_latency_us=0 ProcVersionSignature: Ubuntu 4.10.0-26.30~16.04.1-generic 4.10.17 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.10.0-26-generic N/A linux-backports-modules-4.10.0-26-generic N/A linux-firmware 1.157.11 RfKill: Tags: sonya Uname: Linux 4.10.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 06/20/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0805 dmi.board.asset.tag: Default string dmi.board.name: PRIME B350M-A dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0805:bd06/20/2017:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB350M-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705748/+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
