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    SubjectRe: [RFC][PATCH] IO-APIC blacklist
    On Sat, 2 Jun 2007 14:28:58 -0700 (PDT) Linus Torvalds <torvalds@linux-foundation.org> wrote:

    > That blacklist entry is _ancient_. It's entirely possible that it's just
    > bogus: we've had so many ACPI fixes since it was added, that it's quite
    > possible that the blacklist entry itself is bogus, and is the result of
    > some old ACPI bug that triggered on that entry.
    >
    > The Dell GX240 entry was added by commit 68e4ad79294 in the historic Linux
    > archive:
    >
    > Author: Len Brown <len.brown@intel.com>
    > Date: Sat Aug 9 15:00:59 2003 -0400
    >
    > ACPI from 2.4:
    > build: add ACPI_HT, delete ACPI_HT_ONLY
    > boot: add acpi={force, off, ht}; delete "noht", "acpismp="
    > add DMI blacklist from UnitedLinux
    >
    > and since it sounds like the machine _works_ with ACPI on, my real
    > preference would be to just remove the black-list entry.
    >
    > In fact, I thought that patch already existed in the -mm tree?

    It is. remove-dell-optiplex-gx240-from-the-acpi-blacklist.patch

    > Len - do you have any archives back from 2003 and earlier to indicate why
    > the Dell GX240 was blacklisted?

    "add DMI blacklist from UnitedLinux". Lost in the mists of time, I expect.

    I guess we can tag remove-dell-optiplex-gx240-from-the-acpi-blacklist.patch
    as "backport to 2.6.22.x if it doesn't break anything in 2.6.23-rcX".
    -
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