I installed the kernel you linked to and set the kernel parameter.
On first boot the system immediately crashed with I/O errors upon login.
After reboot I could run the commands:
$ dmesg | grep -i nvme
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.12.0-041200rc5-generic
root=UUID=365f1a9c-9598-4ad5-a387-d02f771767a1 ro quiet splash
nvme_core.default_ps_max_latency_us=0 nvme_core.dyndbg=+p vt.handoff=7
[ 0.000000] Kernel command line:
BOOT_IMAGE=/boot/vmlinuz-4.12.0-041200rc5-generic
root=UUID=365f1a9c-9598-4ad5-a387-d02f771767a1 ro quiet splash
nvme_core.default_ps_max_latency_us=0 nvme_core.dyndbg=+p vt.handoff=7
[ 2.225100] nvme nvme0: pci function 0000:04:00.0
[ 2.441319] nvme0n1: p1 p2
[ 4.220749] EXT4-fs (nvme0n1p2): mounted filesystem with ordered data mode.
Opts: (null)
[ 4.411077] EXT4-fs (nvme0n1p2): re-mounted. Opts: errors=remount-ro
$ sudo nvme get-feature -f 0x0c -H /dev/nvme0
get-feature:0xc (Autonomous Power State Transition), Current value:0x000001
Autonomous Power State Transition Enable (APSTE): Enabled
Auto PST Entries .................
Entry[ 0]
.................
Idle Time Prior to Transition (ITPT): 50 ms
Idle Transition Power State (ITPS): 4
.................
Entry[ 1]
.................
Idle Time Prior to Transition (ITPT): 50 ms
Idle Transition Power State (ITPS): 4
.................
Entry[ 2]
.................
Idle Time Prior to Transition (ITPT): 50 ms
Idle Transition Power State (ITPS): 4
.................
Entry[ 3]
.................
Idle Time Prior to Transition (ITPT): 10000 ms
Idle Transition Power State (ITPS): 5
.................
Entry[ 4]
.................
Idle Time Prior to Transition (ITPT): 10000 ms
Idle Transition Power State (ITPS): 5
.................
Entry[ 5]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 5
.................
Entry[ 6]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 7]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 8]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[ 9]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[10]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[11]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[12]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[13]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[14]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[15]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[16]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[17]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[18]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[19]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[20]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[21]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[22]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[23]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[24]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[25]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[26]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[27]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[28]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[29]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[30]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
Entry[31]
.................
Idle Time Prior to Transition (ITPT): 0 ms
Idle Transition Power State (ITPS): 0
.................
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https://bugs.launchpad.net/bugs/1699004
Title:
APST gets enabled against explicit kernel option
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