Re: [Xen-ia64-devel] Serial woes with kexec on an HP RX2620

[Simon Horman <horms@xxxxxxxxxxxx>]

On Wed, May 23, 2007 at 02:23:59PM +0900, Simon Horman wrote:
> On Wed, May 23, 2007 at 01:36:45PM +0900, Akio Takebe wrote:
> > Hi, Horms
> 
> Hi Takebe-san,
> 
> > After kexec, what kernel do you use?
> > Xen or linux kernel?
> 
> I am going from Xen to Xen
> 
> > I think you don't call iosapic_register_intr(),
> > arguments of iosapic_register_intr() are wrong.
> > Can you check that efi.hcdp is passed to second kernel properly?
> 
> I will check.

I am pretty sure that iosapic_register_intr() is being called.
Here is a dump of some relevant variables in start_kernel()
The output is the same pre and post kdump.

(XEN) efi.hcdp=3fe2a000
(XEN) ns16550_com1_gsi=22
(XEN) ns16550_com1_polarity=1
(XEN) ns16550_com1_trigger=1
(XEN) opt_xencons=1

And to answer Alex's earlier question, the serial port in question
is the one on the motherboard, bot the one on the management processor -
I went into the lab and checked.

-- 
Horms
  H: http://www.vergenet.net/~horms/
  W: http://www.valinux.co.jp/en/


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