Re: [Bug #11224] Only three cores found on quad-core machine.

Dave Jones
2008-10-07T15:32:34Z

On Wed, Oct 08, 2008 at 02:18:18AM +1100, Nick Piggin wrote:
> On Sunday 05 October 2008 04:32, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.26. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
> > Subject : Only three cores found on quad-core machine.
> > Submitter : Dave Jones <davej@redhat.com>
> > Date : 2008-08-01 18:15 (65 days old)
> > References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
>
> Dave, is your CPU2 getting stuck in calibrate_delay? Can you still
> reproduce the bug? What if you boot the kernel with lpj=<something sane
> like 2666785> in order to skip the calibrate_delay code?
>
> If that helps, can you try adding some printks to narrow down where it
> is getting stuck?

This is going to sound strange, but I've forgotten which box that was.
I'm due to reinstall all my test boxes now that the next Fedora beta
has come out anyway, so I'll hopefully figure out by the end of the week :)

Dave

--