Hello; hopefully this is the correct e-mail for libata.  I compiled
2.6.25-rc8 on a macbook pro 15' ati chipset using nubuntu. when
performing
echo mem > /sys/power/state simultaneously I'm noticing on the third time:

[ 2332.951249] sd 2:0:1:0: [sda] Starting disk
[ 2313.224530] ata1.00: ACPI cmd ef/03:0c:00:00:00:a0 filtered out
[ 2313.224532] ata1.00: ACPI cmd ef/03:44:00:00:00:a0 filtered out
[ 2313.391129] ata1.00: configured for UDMA/66
[ 2314.187258] ata3.01: NODEV after polling detection
[ 2314.187262] ata3.01: revalidation failed (errno=-2)
[ 2314.187266] ata3: failed to recover some devices, retrying in 5 secs
[ 2319.368648] ata3.01: ACPI cmd ef/03:0c:00:00:00:b0 filtered out
[ 2319.368654] ata3.01: ACPI cmd ef/03:45:00:00:00:b0 filtered out
[ 2319.382275] ata3.01: configured for UDMA/100
[ 2319.400505] sd 2:0:1:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
[ 2319.400505] sd 2:0:1:0: [sda] Write Protect is off
[ 2319.400505] sd 2:0:1:0: [sda] Mode Sense: 00 3a 00 00
[ 2319.400505] sd 2:0:1:0: [sda] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA

revalidation error=-2
attached is dmesg from the test
--
Justin P. Mattock