[PATCH] Maxtor 6B250S0/BANC1B70 hangs with NCQ
authorJens Axboe <jens.axboe@oracle.com>
Fri, 30 Mar 2007 07:27:58 +0000 (09:27 +0200)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Fri, 30 Mar 2007 18:13:06 +0000 (11:13 -0700)
I've seen this several times on this drive, completely reproducible.

Once it has hung, power needs to be cut from the drive to recover it, a
simple reboot is not enough.  So I'd suggest disabling NCQ on this
drive.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/ata/libata-core.c

index f1f595f53d95ef8da2d13615cc589d39a1a127e9..ddb3909d7288bcb4f5074c3433a931371aa7ef38 100644 (file)
@@ -3361,6 +3361,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
        { "FUJITSU MHT2060BH",  NULL,           ATA_HORKAGE_NONCQ },
        /* NCQ is broken */
        { "Maxtor 6L250S0",     "BANC1G10",     ATA_HORKAGE_NONCQ },
+       /* NCQ hard hangs device under heavier load, needs hard power cycle */
+       { "Maxtor 6B250S0",     "BANC1B70",     ATA_HORKAGE_NONCQ },
 
        /* Devices with NCQ limits */