Re: 2.6.23-rc4-mm1 and -rc6-mm1: boot failure on HP nx6325,related to clockevents
From: Thomas Gleixner
Date: Tue Sep 25 2007 - 08:28:40 EST
On Tue, 2007-09-25 at 14:20 +0200, Rafael J. Wysocki wrote:
> > > > As i can see from the log, you are booting on computer with dualcore AMD
> > > > processor. Do you have C1E feature enabled?
> That's possible, how to check?
> > > > i386 kernel disable lapic on dualcore AMD with C1E support (see
> > > > http://lkml.org/lkml/2007/3/29/199). x86_64 kernel do not have this
> > > > patch still (it's required for tickless kernel only).
> > >
> > > Well it is required for non tickless mode as well.
> > >
> > > > As result, if
> > > > you run x86_64 kernel with hrt patch on such computer, the system
> > > > will stall during boot on lapic timer calibration.
> > >
> > > Thanks for the reminder. I have a look into this.
> > Can you please boot mainline and provide the output of:
> > # cat /proc/interrupts; sleep 10; cat /proc/interrupts
> albercik:~ # cat /proc/interrupts; sleep 10; cat /proc/interrupts
> CPU0 CPU1
> 0: 1159492 0 local-APIC-edge timer
> LOC: 0 1158220 Local interrupts
> 0: 1161996 0 local-APIC-edge timer
> LOC: 0 1160723 Local interrupts
Hmm. That's strange. It looks like the local apic timer is not used, but
x86_64 definitely lacks the above check. Can you please remove/disable
the acpi processor module and recheck ?
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