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    SubjectRe: Loud "pop" coming from hard drive on reboot
    Stephen Clark wrote:
    > Mark Lord wrote:
    >
    >> Mark Lord wrote:
    >>
    >>
    >>> With the patch applied, I don't see *any* new activity in those
    >>> S.M.A.R.T.
    >>> attributes over multiple hibernates (Linux "suspend-to-disk").
    >>>
    >>
    >> Scratch that -- operator failure. ;)
    >> The patch makes no difference over hibernates in the SMART logs.
    >>
    >> It's still logging extra Power-Off_Retract_Count pegs,
    >> which it DID NOT USED TO DO not so long ago.
    >>
    >> Now I'll poke at the shutdown again.
    >>
    >> Meanwhile, Stephen: Could you try without this line in the patched file:
    >>
    >> case ATA_16:
    >> + dev->needs_sync_cache = 1;
    >>
    >> Ie. comment out that last "dev->needs_sync_cache" line.
    >>
    >>
    > No joy - even with that line commented out I get a click and my
    > Power-Off_Retract_Count has incremented.
    >

    I found a solution of sorts on Fedora 6:


    Edit /etc/rc0.d/S01halt, changing the third-from-last line so it reads:

    HALTARGS="-d -h -n"

    Then use the halt(8) command to shut down and turn off the power manually.
    No click and the "retract" counter does not increment. (Even this procedure
    incremented the counter until I changed the script.)

    Seems safe, using the IDE drivers, since they sync the cache anyway.

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