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    SubjectRe: Don't apply 9f022e54b8ea82d1ecdf3bd78d9ab9f44d6b0655 to stable please.
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    On Tue, Apr 3, 2012 at 10:31 PM, Konrad Rzeszutek Wilk
    <konrad.wilk@oracle.com> wrote:
    > On Tue, Apr 03, 2012 at 10:26:42PM +0800, Teck Choon Giam wrote:
    >> On Tue, Apr 3, 2012 at 9:28 PM, Konrad Rzeszutek Wilk
    >> <konrad.wilk@oracle.com> wrote:
    >> >> > Author: Suresh Siddha <suresh.b.siddha@intel.com>
    >> >> > Date:   Mon Mar 12 11:36:33 2012 -0700
    >> >> >
    >> >> >     x86/ioapic: Add register level checks to detect bogus io-apic entries
    >> >> >
    >> >> > With out this commit, if the bios lists bogus io-apic's, then we will
    >> >> > see some error messages ("Unable to reset IRR for apic")during linux
    >> >> > boot which are benign. But as this patch breaks Xen, I am ok if these
    >> >> > don't get applied to 'stable'. Also I think it is Ingo who added the
    >> >> > 'stable' tag. Ingo, are you ok with this?
    >> >>
    >> >> What stable trees did this already go into in the releases today?
    >> >
    >> > I see it in v3.2.x as:
    >> > 273fb19 x86/ioapic: Add register level checks to detect bogus io-apic entries
    >> >
    >> > And in 3.0.x:
    >> > c2ec63e x86/ioapic: Add register level checks to detect bogus io-apic entries
    >>
    >> And does this also affect 3.3.x?  I haven't test but guess it will?
    >
    > Yup!
    >>
    >> # git log | grep -B 5 'x86/ioapic: Add register level checks to detect
    >> bogus io-apic entries'
    >>
    >> commit a998dc2fa76f496d2944f0602b920d1d10d7467d
    >> Author: Suresh Siddha <suresh.b.siddha@intel.com>
    >> Date:   Mon Mar 12 11:36:33 2012 -0700
    >>
    >>     x86/ioapic: Add register level checks to detect bogus io-apic entries
    >>
    >
    > Greg, please also revert this one.

    I will include the various tree commit id as below:

    linux-3.0.y:
    commit c2ec63edaf48c90c3495eeb0b75bb05102fbf71a
    Author: Suresh Siddha <suresh.b.siddha@intel.com>
    Date: Mon Mar 12 11:36:33 2012 -0700

    x86/ioapic: Add register level checks to detect bogus io-apic entries

    linux-3.1.y: Don't have such commit and I guess it is due to EOL before Mar 12

    linux-3.2.y:
    commit 273fb194e86b795b08a724c7646d0f694949070b
    Author: Suresh Siddha <suresh.b.siddha@intel.com>
    Date: Mon Mar 12 11:36:33 2012 -0700

    x86/ioapic: Add register level checks to detect bogus io-apic entries

    linux-3.3.y:
    commit a998dc2fa76f496d2944f0602b920d1d10d7467d
    Author: Suresh Siddha <suresh.b.siddha@intel.com>
    Date: Mon Mar 12 11:36:33 2012 -0700

    x86/ioapic: Add register level checks to detect bogus io-apic entries


    Thanks.

    Kindest regards,
    Giam Teck Choon
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