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    Subject[PATCH] blacklist NCQ on Seagate Barracuda ST380817AS
    Hi, I think you forgot to blacklist this one  :)

    Seagate Barracuda ST380817AS has troubles with NCQ. For example,
    unpacking a tarball on an XFS filesystem gives this:

    ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen
    ata1.00: cmd 61/40:00:29:a3:98/00:00:00:00:00/40 tag 0 cdb 0x0 data 32768 out
    res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)

    More info here:

    Blacklist it!

    Signed-off-by: Paolo Ornati <>

    diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
    index 772be09..be289d0 100644
    --- a/drivers/ata/libata-core.c
    +++ b/drivers/ata/libata-core.c
    @@ -3781,6 +3781,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
    { "Maxtor 7B250S0", "BANC1B70", ATA_HORKAGE_NONCQ, },
    { "Maxtor 7B300S0", "BANC1B70", ATA_HORKAGE_NONCQ },
    { "Maxtor 7V300F0", "VA111630", ATA_HORKAGE_NONCQ },
    + { "ST380817AS", "3.42", ATA_HORKAGE_NONCQ },
    /* NCQ hard hangs device under heavier load, needs hard power cycle */

    Paolo Ornati
    Linux 2.6.23-rc8-ga64314e6-dirty on x86_64
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