Hello, Ondrej. On Mon, Feb 15, 2016 at 10:01:47PM +0100, Ondrej Zary wrote: > The first hdparm is slower because of the error: > [ 80.964060] ata5.00: exception Emask 0x12 SAct 0x0 SErr 0x1000500 action 0x6 > [ 80.964095] ata5.00: BMDMA stat 0x5 > [ 80.964108] ata5: SError: { UnrecovData Proto TrStaTrns } > [ 80.964125] ata5.00: failed command: READ DMA EXT > [ 80.964143] ata5.00: cmd 25/00:90:00:00:00/00:04:00:00:00/e0 tag 0 dma 598016 in > res 51/84:af:df:00:00/84:03:00:00:00/e0 Emask 0x12 (ATA bus error) > [ 80.964173] ata5.00: status: { DRDY ERR } > [ 80.964185] ata5.00: error: { ICRC ABRT } > [ 80.964209] ata5: hard resetting link > [ 81.284056] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 310) > [ 81.300531] ata5.00: configured for UDMA/133 > [ 81.300569] ata5: Incompatible drive (WD?): enabling workaround > [ 81.300598] ata5: EH complete Hmm... I like the workaround but wish the kernel weren't generating the above output. How about doing something like the following? svia_error_handler() { if (workaround hasn't been applied yet && the conditions match for the workaround) { apply the workaround; mark as such; print informational message; set ATA_EHI_QUIET; } ata_sff_error_handler(ap); } -- tejun -- 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