On Thursday, 27 September 2007 01:21, Thomas Gleixner wrote:
> On Thu, 2007-09-27 at 01:30 +0200, Rafael J. Wysocki wrote:
> > > > Tested for a couple of times with each kernel, the results seem to be
> > > > reproducible 100% of the time.
> > >
> > > Thanks for going through this debug marathon.
> >
> > No big deal. I'm glad that you've found what's up.
> >
> > Well, we still have the "CPU hotplug during suspend w/ the hrt patch" problem
> > to debug ... ;-)
>
> Yeah. Knowing the actual line of code where it breaks might be helpful.
Instead, I have a fix (appended, against 2.6.23-rc8-mm2). :-)
Next, I'm going to enable NO_HZ and HIGH_RES_TIMERS and see what happens. ;-)
Greetings,
Rafael
---
From: Rafael J. Wysocki <[email protected]>
Fix CPU hotplug breakage on HP nx6325 and similar boxes caused by the reference
to disable_apic_timer (labeled as __initdata) from the CPU initialization code.
Signed-off-by: Rafael J. Wysocki <[email protected]>
---
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;
/* Local APIC timer works in C2? */
int local_apic_timer_c2_ok;
-
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