linux-kernel - Re: Don't apply 9f022e54b8ea82d1ecdf3bd78d9ab9f44d6b0655 to stable please.

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Message-ID: <20120403143114.GA27326@phenom.dumpdata.com>
Date:	Tue, 3 Apr 2012 10:31:14 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Teck Choon Giam <giamteckchoon@...il.com>,
	gregkh@...uxfoundation.org
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, stable@...r.kernel.org
Subject: Re: Don't apply 9f022e54b8ea82d1ecdf3bd78d9ab9f44d6b0655 to stable
 please.

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@...cle.com> wrote:
> >> > Author: Suresh Siddha <suresh.b.siddha@...el.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@...el.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.
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