Re: IA64 Kexec-Kdump kernel patch

Zou Nan hai
2006-08-17T03:56:16Z

On Thu, 2006-08-17 at 02:25, Bob Montgomery wrote:
> On Wed, 2006-08-16 at 06:40 +0800, Zou Nan hai wrote:
> > On Wed, 2006-08-16 at 01:39, Bob Montgomery wrote:
> > > On Tue, 2006-08-15 at 08:47 +0800, Zou Nan hai wrote:
>
> >
> > If you are not seeing "I am in purgatory" in console, that probably
> > means crash kernel segments and purgatory code was copied into some
> > wrong physical address.
> >
> > Can you check the crashkernel="..." parameter
> > Thanks
>
> Today, we have had success by changing the configuration of our kernels
> from zx1 to tiger. Now we'll try to figure out what it is about the zx1
> config parameters that causes the crash_kexec path to break.
>
> Bob Montgomery
Hi Bob,
Could you take a look at the ioc_iova_disable code in crash path?

That piece of code is from HP.
It will only execute if CONFIG_IA64_HP_ZX1 is defined.

I don't have much knowledge of the I/O MMU stuff on HP machines....

Thanks
Zou Nan hai