Re: 2.6.19-rc5-mm1: HPC nx6325 breakage, VESA fb problem, md-raid problem

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On Friday 10 November 2006 06:15, Andrew Morton wrote:
> On Fri, 10 Nov 2006 05:49:08 +0100
> Andi Kleen <[email protected]> wrote:
> 
> > 
> > > > > 
> > > > > Well, I've got some data from earlyprintk (forgot I needed to boot with
> > > > > vga=normal).
> > > > > 
> > > > > Unfortunately, I had to rewrite the trace manually:
> > > > > 
> > > > > clear_IO_APIC_pin+0x15/0x6a
> > > > > try_apic_pin+0x7a/0x98
> > > > > setup_IO_APIC+0x600/0xb7a
> > > > > smp_prepare_cpus+0x33a/0x371
> > > > > init+0x60/0x32d
> > > > > child_rip+0xa/0x12
> > > > > 
> > > > > [And then the unwinder said it got stuck.]
> > > > > 
> > > > > RIP is reported to be at ioapic_read_entry+0x33/0x61,
> > > > 
> > > > This is 100% reproducible on the nx6325 (but not on the other boxes) and
> > > > apparently caused by x86_64-mm-try-multiple-timer-pins.patch (doesn't
> > > > happen with this patch reverted).
> > > 
> > > Thanks, dropped.
> > 
> > can I have details please? 
> 
> I think what's in this thread is all you'll get.

That's probably not enough then.


> 
> It would be nice to see the access address.  I'd be guessing that it's
> trying to read the io-apic before we're ready to read it and io_apic_base()
> is returning gunk and boom.

I would like to see the full output from the earlyprintk crash please.
.jpg would be ok.

> 
> > On what system (CPU, motherboard, BIOS version) does the noidlehz stuff break?
> 
> nx6325

Ah -- it seems to be an ATI chipset. I tested it on a ATI chipset machine
here so it must be doing something strange.

Anyways, you most likely broke a wide range of other motherboards again
by dropping it.

> 
> It's x86_64: no noidlehz.
> 
> > And what did you drop exactly?
> 
> x86_64-mm-try-multiple-timer-pins.patch

Ah that was the information I was missing. 

-Andi

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