Comment 17 for bug 1699004

Revision history for this message
Nils (maeher) wrote :

Now I get the following:

$ dmesg | grep -i apst
[ 2.232133] nvme nvme0: apsta = 0, no APST
[ 2.448134] nvme 0000:04:00.0: NVME_QUIRK_NO_APST
[ 2.448135] nvme 0000:04:00.0: disabling APST.
[ 2.448137] nvme nvme0: apsta = 0, no APST

It seems like those messages are telling me that apst should be disabled?
However, I still get

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
...