Comment 0 for bug 1699004

I have a Lenovo ThinkPad X270 with a Toshiba nvme SSD

$ sudo nvme list
Node SN Model Namespace Usage Format FW Rev
---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
/dev/nvme0n1 177S10WYTAMT THNSF5256GPUK TOSHIBA 1 256.06 GB / 256.06 GB 512 B + 0 B 51025KLA

I was affected by this bug
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184?comments=all
before. After disabling APST by adding "nvme_core.default_ps_max_latency_us=0" in /etc/default/grub, the bug went away.

Since yesterday, however the bug has returned, with the system dying with I/O errors after an hour or so.

I verified, that the kernel option is still being set

$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.10.0-22-generic.efi.signed root=UUID=365f1a9c-9598-4ad5-a387-d02f771767a1 ro quiet splash nvme_core.default_ps_max_latency_us=0 vt.handoff=7

however it turns out that it is being ignored for some reason, and running

$ sudo nvme get-feature -f 0x0c -H /dev/nvme0

reports that APST is enabled. I can successfully disable it manually using

$ sudo nvme set-feature -f 0x0c -v=0 /dev/nvme0

and the problem goes away. However, after any reboot and even after waking the system from suspend, it is reenabled, causing the system to crash after a short while.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-image-4.10.0-22-generic 4.10.0-22.24
ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15
Uname: Linux 4.10.0-22-generic x86_64
ApportVersion: 2.20.4-0ubuntu4.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0p: maeher 1669 F...m pulseaudio
 /dev/snd/controlC0: maeher 1669 F.... pulseaudio
CurrentDesktop: Unity:Unity7
Date: Mon Jun 19 23:29:31 2017
InstallationDate: Installed on 2017-04-17 (64 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: LENOVO 20HN001RUS
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-22-generic.efi.signed root=UUID=365f1a9c-9598-4ad5-a387-d02f771767a1 ro quiet splash nvme_core.default_ps_max_latency_us=0 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.10.0-22-generic N/A
 linux-backports-modules-4.10.0-22-generic N/A
 linux-firmware 1.164.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/16/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: R0IET30W (1.08 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HN001RUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrR0IET30W(1.08):bd01/16/2017:svnLENOVO:pn20HN001RUS:pvrThinkPadX270:rvnLENOVO:rn20HN001RUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20HN001RUS
dmi.product.version: ThinkPad X270
dmi.sys.vendor: LENOVO