Hi Niklas
Le 11/03/2025 à 15:14, Niklas Cassel a écrit :
Hello Hans, Eric,
Eric, could you please run:
$ sudo hdparm -I /dev/sdX | grep "interface power management"
on both your Samsung and Maxtor drive?
(A star to the left of feature means that the feature is enabled)
Here is the result (apparently PM is enabled on the maxtor but it
doesn't create the same problem) :
(trixieUSB)eric@gwaihir:~$ sudo hdparm -I
/dev/disk/by-id/ata-MAXTOR_STM3250310AS_6RY2WB82 | grep "interface power
management"
* Device-initiated interface power management
(trixieUSB)eric@gwaihir:~$ sudo hdparm -I
/dev/disk/by-id/ata-Samsung_SSD_870_QVO_2TB_S5RPNF0T419459E | grep
"interface power management"
* Device-initiated interface power management
One guess... perhaps it could be Device Initiated PM that is broken with
these controllers? (Even though the controller does claim to support it.)
Eric, could you please try this patch:
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index f813dbdc2346..ca690fde8842 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -244,7 +244,7 @@ static const struct ata_port_info ahci_port_info[] = {
},
[board_ahci_sb700] = { /* for SB700 and SB800 */
AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
- .flags = AHCI_FLAG_COMMON,
+ .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_pmp_retry_srst_ops,
Will do. I'll report back as soon as I've built the modified kernel and
tested it.
Kind regards,
Niklas
Kind regards
Eric
