The Hitachi Travelstar 7k200 does not play along nicely with the way linux uses its NCQ feature. It should be on the blacklist. see http://bugzilla.kernel.org/show_bug.cgi?id=9022 for details Signed-off-by: Tobi Oetiker <tobi@xxxxxxxxxx> --- linux-2.6.22.6.orig/drivers/ata/libata-core.c 2007-08-23 01:23:54.000000000 +0200 +++ linux-2.6.22.6/drivers/ata/libata-core.c 2007-09-15 01:41:53.000000000 +0200 @@ -3798,6 +3798,7 @@ /* Drives which do spurious command completion */ { "HTS541680J9SA00", "SB2IC7EP", ATA_HORKAGE_NONCQ, }, { "HTS541612J9SA00", "SBDIC7JP", ATA_HORKAGE_NONCQ, }, + { "Hitachi HTS722016K9SA00", "DCDOC54P", ATA_HORKAGE_NONCQ, }, { "Hitachi HTS541616J9SA00", "SB4OC70P", ATA_HORKAGE_NONCQ, }, { "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, }, { "FUJITSU MHV2080BH", "00840028", ATA_HORKAGE_NONCQ, }, -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten http://it.oetiker.ch tobi@xxxxxxxxxx ++41 62 213 9902 - 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