On Mon, Aug 27, 2018 at 07:48:18PM +1000, Zenaan Harkness wrote: > So I have a 'spare' internal spinning rust bucket which I only use > for backups, and so most of the time when I'm not using it I put it > to sleep with: > > sudo hdparm -Y /dev/sda > > Unfortunately the kernel wakes the drive up again: > > Aug 27 19:44:40 eye kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 > action 0x6 > Aug 27 19:44:40 eye kernel: ata1.00: waking up from sleep > Aug 27 19:44:40 eye kernel: ata1: hard resetting link > Aug 27 19:44:41 eye kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl > 300) > Aug 27 19:44:41 eye kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET > FEATURES) succeeded > Aug 27 19:44:41 eye kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY > FREEZE LOCK) filtered out > Aug 27 19:44:41 eye kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET > FEATURES) filtered out > Aug 27 19:44:43 eye kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET > FEATURES) succeeded > Aug 27 19:44:43 eye kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY > FREEZE LOCK) filtered out > Aug 27 19:44:43 eye kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET > FEATURES) filtered out > Aug 27 19:44:43 eye kernel: ata1.00: configured for UDMA/133 > Aug 27 19:44:43 eye kernel: ata1: EH complete > > Why is the kernel doing this, and how do I stop it from happening?
How often does it happen? -dsr-
