Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=964429252a88cbb4eccd9f024a00813e10d16c71
Commit:     964429252a88cbb4eccd9f024a00813e10d16c71
Parent:     ce20269d1e97030afa476e12b99d2437e748d225
Author:     Jens Axboe <[EMAIL PROTECTED]>
AuthorDate: Fri Mar 30 09:27:58 2007 +0200
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Fri Mar 30 11:13:06 2007 -0700

    [PATCH] Maxtor 6B250S0/BANC1B70 hangs with NCQ
    
    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 <[EMAIL PROTECTED]>
    Acked-by: Tejun Heo <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
 drivers/ata/libata-core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f1f595f..ddb3909 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -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 */
 
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