Comment 193 for bug 1746340

Revision history for this message
trong luu (tronglx) wrote :

After running cat /sys/module/nvme_core/parameters/default_ps_max_latency_us command and output is 0.
sudo nvme get-feature -f 0x0c -H /dev/nvme0n1p2
get-feature:0xc (Autonomous Power State Transition), Current value:00000000
 Autonomous Power State Transition Enable (APSTE): Disabled
 Auto PST Entries .................
 Entry[ 0]
 .................
 Idle Time Prior to Transition (ITPT): 0 ms
 Idle Transition Power State (ITPS): 0
 .................
 Entry[ 1]
 .................
 Idle Time Prior to Transition (ITPT): 0 ms
 Idle Transition Power State (ITPS): 0
 .................
 Entry[ 2]
 .................
 Idle Time Prior to Transition (ITPT): 0 ms
 Idle Transition Power State (ITPS): 0
 .................
 Entry[ 3]
 .................
 Idle Time Prior to Transition (ITPT): 0 ms
 Idle Transition Power State (ITPS): 0
 .................
 Entry[ 4]
 .................
 Idle Time Prior to Transition (ITPT): 0 ms
 Idle Transition Power State (ITPS): 0
 .................
 Entry[ 5]
 .................
 Idle Time Prior to Transition (ITPT): 0 ms
 Idle Transition Power State (ITPS): 0
 .................
 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
 .................
       0 1 2 3 4 5 6 7 8 9 a b c d e f
0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
00b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "................"
My grub default config is:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nvme_core.default_ps_max_latency_us=0"
I have already tried with nvme_core.default_ps_max_latency_us=250, even some of another value, but the issue still occurs.