Matheus Izvekov wrote: > Seagate drive ST3160023AS is correctly detected as supporting NCQ, but > when its used with moderate loads, libata keeps throwing error > messages until it finally decides to disable NCQ on it. [] > ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) > ata1.00: ATA-6: ST3120026AS, 3.18, max UDMA/133 By the way, did you forget to remove a jumper on the drive (the only jumper installed by default) that limits drive usage to SATAI? [] > ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen > ata4.00: cmd 61/1f:00:f4:14:52/00:00:09:00:00/40 tag 0 cdb 0x0 data 15872 out > res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) > ata4: soft resetting port > ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ..etc. Try again without the jumper? Note that NCQ is NOT supported in SATAI mode, or there were some pre-standard implementations of it. In SATAII, NCQ is standard (well... more or less anyway ;) /mjt - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html