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    SubjectRe: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS
    On Sun, 30 Sep 2007 15:29:08 +0100
    Alan Cox <> wrote:

    > > 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)
    > What makes you sure that is an NCQ problem ?

    It goes away with:
    echo 1 > /sys/block/sda/device/queue_depth

    I have this problem only with XFS, and even with XFS it goes away
    mounting with "nobarrier"...

    Paolo Ornati
    Linux 2.6.23-rc8-ga64314e6-dirty on x86_64
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      Last update: 2007-09-30 16:49    [W:0.020 / U:0.432 seconds]
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