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SubjectRe: 2.6.23-rc8-mm2: problems on HP nx6325
On Thu, Sep 27, 2007 at 10:33:51AM -0700, Randy Dunlap wrote:
> On Thu, 27 Sep 2007 18:53:46 +0200 Sam Ravnborg wrote:
>
> > Hi Rafael.
> > >
> > > Fix CPU hotplug breakage on HP nx6325 and similar boxes caused by a reference
> > > to disable_apic_timer (labeled as __initdata) from the CPU initialization code.
> > >
> > > Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
> > > ---
> > > arch/x86_64/kernel/apic.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > Index: linux-2.6.23-rc8-mm2/arch/x86_64/kernel/apic.c
> > > ===================================================================
> > > --- linux-2.6.23-rc8-mm2.orig/arch/x86_64/kernel/apic.c
> > > +++ linux-2.6.23-rc8-mm2/arch/x86_64/kernel/apic.c
> > > @@ -42,7 +42,7 @@
> > >
> > > int apic_verbosity;
> > > static int apic_calibrate_pmtmr __initdata;
> > > -int disable_apic_timer __initdata;
> > > +int disable_apic_timer __cpuinitdata;
> > >
> > This is with your configuration a reference from a .text section
> > to a .init.data section as I see it.
> >
> > So this ought to have been flagged by the section mismatch
> > checks in modpost.
> >
> > I assume you did not see such warning??
>
> I did:
>
> WARNING: vmlinux.o(.text+0x7778): Section mismatch: reference to .init.data:disable_apic_timer (between 'identify_cpu' and 'IRQ0x20_interrupt')

Thanks. I look forward to the day I can make them errors so people
cannot ignore them.
That said a lot of individuals has done a very good job getting
rid of section mismatch warnings all over the kernel.

Sam
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