Re: linux-next Regression: Unable to locate IOAPIC

[Alexey Starikovskiy <aystarik@xxxxxxxxx>]

Hi Ingo, Yinghai,

It looks like the code introduced by 
2944e16b25e7fb8b5ee0dd9dc7197a0f9e523cfd
is causing this problem. At least it is new between -rc5 (working) and 
linux-next (not working).

Regards,
Alex.


Daniel Exner wrote:
> Hi all,
>
> Alexey Starikovskiy wrote:
>   
> > Hi Daniel,
> >
> > Could you please provide full dmesg and acpidump outputs?
> >     
> I attached dmesg and config , both from working 2.6.26-rc5 with git-acpi patch 
> below and from linux-next snapshot 20080604.
> I also attached acpidump that was done while using stock 2.6.25-fw5 from my 
> distro. (But I think that doesnt matter, at least it shouldn't ;)
>
>   
> > Daniel Exner wrote:
> >     
> > > Andrew Morton wrote:
> > >       
> > > > On Fri, 6 Jun 2008 19:30:28 +0200 Daniel Exner <dex@xxxxxxxxxxxxxx> 
> > > >         
> wrote:
>   
> > > > > Andrew Morton wrote:
> > > > >           
> > > > > > (cc linux-acpi)
> > > > > >
> > > > > > On Thu, 5 Jun 2008 11:00:12 +0200 Daniel Exner <dex@xxxxxxxxxxxxxx>
> > > > > >             
> > > wrote:
> > >       
> > > > > > > Hi!
> > > > > > >
> > > > > > > (Added myself to CC, because I'm not subscribed)
> > > > > > >
> > > > > > > with linux-next snapshot 20080604 my Laptop morphes into sitting duck
> > > > > > > and I think this is due to this:
> > > > > > >               
> > > > > > I assume 2.6.26-rc5 is OK?
> > > > > >             
> > > > > Indeed.. just tried it with (nearly) the same config: no unable to
> > > > > locate IOAPIC
> > > > >
> > > > > Will try todays next snapshot above -rc5 now.
> > > > >           
> > > > OK, thanks.
> > > >
> > > > It would be great if you could test 2.6.26-rc5 plus
> > > > http://userweb.kernel.org/~akpm/git-acpi.patch.  That'll allow us to
> > > > confirm that the regression is due to changes in the acpi tree.
> > > >         
> > > Sorry for the delay.. real-life you know ;)
> > >
> > > I guess you'd expect me to confirm the behavior on rc5 with this patch
> > > aplied, but .. well this Kernel works!
> > >       
> To clarify myself:
> 2.6.25.5:  --> relatively fast no IOAPIC Errors in dmesg
> 2.6.26-rc5:   --> relatively  no IOAPIC Errors in dmesg
> 2.6.26-rc5 + git-acpi Patch:   --> relatively  no IOAPIC Errors in dmesg
> 2.6.26-rc5 +  linux-next snapshot 20080604 --> even slower than before my ide 
> Patch many "unable to locate IOAPIC" Errors
>
>
> So I think the problem lies not in the acpi tree but somewhre else.
>
> Is it possible to tell git to explicitly _exclude_ a specific tree while 
> bisecting?
>
> --
> Greetings
> Daniel Exner
>   

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