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    SubjectRe: Kernel-2.4.17pre8 & invalidate: busy buffer
    You will see this message with LVM too when issuing vgscan/vgchange.

    On 13-Dec-2001 Benjamin Herrenschmidt wrote:
    >>Hello,
    >>
    >>Currently while running on a RedHat Linux 7.2 box with kernel-
    >>2.4.17pre8, whenever I run the "hdparm -t /dev/sda3" command, the
    >>following error message will appear around 33+ times
    >>in /var/log/messages as well as "dmesg" .
    >>
    >>invalidate: busy buffer
    >>
    >>The machine in question is a Dell PowerEdge 2550 with an AACRAID
    >>controller and 2 x 18GB HDs in RAID-1 configuration and /dev/sda3 being
    >>mount as / .
    >
    > That's interesting. I've been seeing this message for some time now
    > (I think since around 2.4.15 at least, maybe longer). I modified the
    > printk to display the device number, and at that time, it seemed to
    > always originate from the partition that had a mounted HFS volume.
    > So I just added that to my (long) list of HFS bugs to fix when I
    > find enough time to dive into it.
    >
    > However, I just got a report from some users having the same message
    > displayed when using parted and with no HFS partition (HFS filesystem
    > not loaded). I personally see this messages when using/leaving MacOnLinux
    > emulator (which is opening the block device of a partition that is also
    > mounted), or when shutting down the box.
    >
    > Al, any clue ? Something you want me to do to track it further down ?
    >
    > Ben.
    >
    >
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    Andreas Steinmetz
    D.O.M. Datenverarbeitung GmbH
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